Union County Property Assessor 2026: Search & Tax Records

Union County • state-first property record guide • verified August 2026

Find the Right Union County Before You Search

Union County property searches are unusually easy to mix up because the same county name exists in several states. Start by identifying the state, then use the official assessor, tax, GIS or deed system built for that jurisdiction.

This guide focuses on the strongest current search intents—South Dakota, Oregon, New Jersey and North Carolina—and shows exactly which fields work, what the records mean, how to fix failed searches, where taxes are actually paid and which 2026 appeal rules apply.

UNION
SD
OR
NJ
NC
South Dakota Director of Equalization Beacon supports address, Parcel ID and Section/Township/Range.
Oregon Assessor / Tax Collector Assessment and tax collection are combined in one county office.
New Jersey Municipality first Local municipal assessors create assessments; state and county systems support research and appeals.
North Carolina Property Portal + UC Atlas Search by owner, parcel or address; use UC Atlas for mapping.

Quick Answer: Which Union County Property Database Do You Need?

If the property is around Elk Point, North Sioux City or Dakota Dunes, use Union County, South Dakota. If it is around La Grande, use Oregon. If it is in Elizabeth, Linden, Plainfield, Westfield, Union Township or another New Jersey municipality, use Union County, New Jersey. If it is around Monroe, Indian Trail, Waxhaw or Weddington, use North Carolina.

Independent guide: AssessorPropertySearch.org is not affiliated with any Union County government. Do not enter payment information, Social Security numbers or other sensitive information into a private property-record page when the task should be completed on an official county or state system.

Choose Your Union County by State and Nearby City

Do this before entering an owner name. A legitimate parcel found in the wrong state is still the wrong property.

SD

South Dakota

Nearby places: Elk Point, Jefferson, North Sioux City and Dakota Dunes.

The county assessment office is called the Director of Equalization. Union County directs property-search users to Beacon.

Confirmed Beacon fields: Address, Parcel ID and Section/Township/Range.

OR

Oregon

Nearby places: La Grande, Island City, Elgin and Union.

The county has a combined Assessor / Tax Collector office responsible for both assessment and tax collection.

NJ

New Jersey

Municipalities include: Elizabeth, Linden, Plainfield, Rahway, Summit, Westfield and Union Township.

The local municipal assessor performs assessment work. Confirm the municipality before searching statewide parcel or assessment data.

NC

North Carolina

Nearby places: Monroe, Indian Trail, Waxhaw, Weddington, Stallings and Marvin.

Union County Tax Administration provides the Property Portal, while UC Atlas provides current interactive mapping.

Another Union County? If the property is in Florida, Georgia, Ohio, Pennsylvania, Arkansas or another state, do not use one of these four systems. Add the state name to the search and use that jurisdiction’s official assessor, appraiser or tax office.

How to Search the Correct Union County Property Record

Use this sequence before checking value, ownership, taxes, GIS or appeal information.

Confirm the state and municipality

Identify the state first. For New Jersey, also determine the municipality because local assessors maintain municipal assessment records.

Choose the record you actually need

Use the assessor or appraisal system for value and property characteristics, the tax collector or treasurer for payment status, GIS for mapping and the recorder or register of deeds for legal documents.

Start with one reliable search field

Use a parcel/PIN/account number when available. Otherwise begin with a simplified property address or an owner name only where the official system supports owner searching.

Reduce the search when no result appears

Remove ZIP code, punctuation, unit number and unnecessary street-direction wording. A partial street or owner name can work better than an over-formatted query.

Verify the matching parcel

Compare state, municipality, situs address, parcel identifier, owner display, legal-description clues and tax year before using the result.

Use the responsible office for the final action

Move to the tax office for payment, the recorder for legal title documents or the correct assessment-appeal authority when disputing value.

Search by Address, Owner Name, Parcel or Map

Jurisdiction
Best search fields
Micro-level search tip
Union County SD
Address, Parcel ID, Section/Township/Range
On Beacon choose South Dakota → Union County, SD. The county does not explicitly list owner name among its three primary search fields.
Union County OR
County Property Records / account lookup
Use the county-linked Property Records inquiry rather than a private property-value website. Tax and assessment information are handled by the same office.
Union County NJ
County, municipality, address, block and lot
Use NJ Property Explorer for parcel identification. Owner availability may be affected by privacy protection or annual-data timing; use the municipal assessor when an owner-specific assessment question remains.
Union County NC
Owner name, Parcel ID, address
The official Property Portal supports all three. If the property characteristics are wrong, the portal can also be used to request corrections.
Best verification field: when you have both a name and a parcel/account number, trust the parcel identifier for matching purposes and use the owner name as a secondary check. Ownership displays can lag after a sale or appear under a trust, estate or business.

What the Property Search Result Can—and Cannot—Tell You

Record item
Useful for
Do not assume
Owner display
Identifying the party carried in the assessment database.
It is a complete title opinion or has already caught up with a very recent deed.
Parcel / PIN / account
Returning to the exact property and matching tax or GIS systems.
The same identifier format is used by every office.
Market / appraised value
Understanding the government valuation used in the property-tax process.
It equals a current listing price, purchase offer or tax balance.
Tax information
Historical or basic tax context.
An assessor/GIS screen proves the current bill is paid.
Map boundary
Parcel orientation, nearby-property research and GIS analysis.
It is a survey or a legal boundary determination.
Legal description
Locating the parcel and finding recorded documents.
A condensed assessor description replaces the recorded deed or plat.

South Dakota: Beacon Search, Tax Bills and 2026 Assessment Help

In Union County, South Dakota, the county assessor function is performed by the Director of Equalization.

Exact Beacon search sequence

  1. Open Beacon.
  2. Choose South Dakota under State.
  3. Choose Union County, SD under County/city/area.
  4. Select Property Search or View Map.
  5. Search by Address, Parcel ID or Section/Township/Range.
  6. Open the matching parcel and save its identifier before moving to tax or deed research.
Free vs. restricted Beacon data: Union County says some Beacon information is available free, while certain restricted information may require a subscription. Do not pay merely to obtain information that is already available in the free property view.

2026 county reappraisal work

The county’s current Director of Equalization information identifies Jefferson Township and Deer Run Development as the 2026 areas in its countywide reappraisal schedule. Property owners in an active review area should compare the parcel’s physical characteristics with the actual structures and report material factual errors.

Do not use Beacon as proof that taxes were paid

The Treasurer specifically instructs users not to rely on Beacon to confirm taxes paid or determine the exact amount currently due. Use the Treasurer’s live tax-payment system instead.

South Dakota tax item
Current county rule
First-half real-estate tax
Due April 30.
Second-half real-estate tax
Due October 31.
Tax bills
Generally mailed by the end of January.
Recent buyer
The bill can still be mailed to the former owner; the current property owner remains responsible.
Online delinquent prior years
The county says prior-year delinquent taxes cannot be paid through the standard online payment system; contact the Treasurer.
Online payment fee
Credit/debit/e-check transactions are available, but online transaction fees apply. Review the displayed charge before submitting.
Official final-action resources

South Dakota 2026 Property Appeal Process

South Dakota’s official 2026 guide lays out a staged appeal process. As of August 2026, the ordinary spring deadlines below have passed.

March 1 — assessment notice

Assessment notices were required to be mailed by March 1.

March 12 — Local Board written appeal

The local-board clerk had to receive the written appeal by March 12. A letter, email, signed PT17 or another written notification could qualify.

March 15 — owner-occupied status

This was the 2026 filing deadline for owner-occupied status with the Director of Equalization.

April 7 — County or Consolidated Board

Qualifying written appeals to the county auditor had an April 7 deadline.

May 15 — Office of Hearing Examiners

A qualifying further OHE appeal had to be mailed or filed by May 15.

Circuit Court — 30-day window

The state guide describes a 30-day court deadline after the applicable decision notice.

What must the written local appeal contain?

  • Property owner’s name.
  • Legal description of the property.
  • A brief explanation of the appeal.
  • Evidence supporting the requested change.
“The value is too high” is not enough. The state guide tells owners to support the appeal with evidence such as comparable sales or assessments and explain how the comparison properties relate to the subject property.

Do not skip the required board

The 2026 guide warns that a taxpayer who is required to appeal to the Local Board first can lose the right to proceed to later boards by skipping that stage. Nonresidents and owners in unorganized townships have different routing rules.

Official South Dakota Department of Revenue PDF Open 2026 Appeal Guide

Oregon: One Office Handles Assessment and Tax Collection

Union County, Oregon differs from South Dakota because the county combines the Assessor and Tax Collector functions.

Property Records Inquiry

Use the county-linked Records Inquiry system for assessment and property-tax account research rather than a private valuation database.

Tax maps and ORMAP

The Assessor / Tax Collector page provides tax-map resources and a route to Oregon’s ORMAP cadastral mapping system.

Real market value is not always taxable assessed value

Oregon property records can involve real market value, maximum assessed value and assessed value. Oregon generally taxes the applicable assessed value under its constitutional property-tax system, so multiplying the real market value by an internet “average tax rate” can produce a poor estimate.

Current Oregon value-appeal timing

For most property-value disputes, Oregon DOR says the owner files with the county Property Value Appeals Board after receiving the tax statement but before December 31, or the next business day when December 31 falls on a weekend or holiday.

Important August 2026 point: unlike the already-closed spring deadlines in South Dakota, New Jersey and North Carolina, the ordinary Oregon PVAB deadline for the upcoming statement cycle is not something this guide should mark “closed” merely because it is August.

After a PVAB value decision

For a property-value issue, Oregon DOR says an owner generally has 30 days from the board order to appeal to the Magistrate Division of the Oregon Tax Court. Some non-value issues, including exemption denial and omitted assessments, use different routes and can have a 90-day deadline.

Official Union County Oregon and Oregon DOR resources
Office: 1001 Fourth Street, Suite A & B, La Grande, OR 97850 • 541-963-1002 • Monday–Thursday 8:30 a.m.–5:00 p.m. • closed 12:00–1:00 p.m. for lunch.

New Jersey: Municipality First, Then Parcel or Assessment

Union County, New Jersey does not operate like a single-county assessor database. Property assessment begins with the local municipal assessor.

Best official route when you have an address

  1. Confirm that the property is in Union County, New Jersey.
  2. Identify the municipality—for example Elizabeth, Linden, Plainfield, Rahway, Summit, Westfield or Union Township.
  3. Use the official New Jersey Property Explorer to search by address, county, municipality, block and lot.
  4. Save the block and lot numbers.
  5. Use the municipality’s assessor for assessment-specific questions or corrections.
Owner-name privacy: New Jersey GIS states that protected owner names are redacted from hosted parcel and tax-list downloads, map services and applications under Daniel’s Law. A missing owner name therefore does not prove the parcel record is defective.

Why a recent buyer may not appear yet

The New Jersey Transparency Center says its annual property-tax data comes from local-assessor lists filed in January. Ownership changes occurring after that data snapshot may not yet appear in the annual file.

Official New Jersey property research

New Jersey A-1 Assessment Appeal: Deadlines, Fees and Evidence

The current official Petition of Appeal instructions add practical details that are often omitted from generic property-search pages.

Filing deadline rule

The general rule is that the county board must receive the appeal by April 1 of the tax year, or within 45 days of completion of the bulk mailing of assessment notices, whichever is later. For a qualifying municipality-wide revaluation or reassessment, the general deadline is May 1.

Received—not merely postmarked: the A-1 instructions explicitly distinguish receipt from a postmark. A filing arriving after the deadline can be dismissed as late.

Current A-1 filing-fee table

Assessed valuation / appeal type
Filing fee
$0–under $150,000 valuation
$5
$150,000–under $500,000
$25
$500,000–under $1,000,000
$100
$1,000,000 or more
$150
Classification appeal
$25
Valuation + classification
Combined applicable fees
Other appeal not covered above
$25

The instructions say the fee accompanies the original petition, is payable to the County Tax Administrator and is non-refundable. Certain petitions contesting denial of specified veteran or senior/disabled deductions do not require the standard filing fee.

Copies and attachments

  • File the original petition with the County Board of Taxation.
  • Serve a copy on the municipal assessor.
  • Serve a copy on the municipal clerk.
  • Keep a copy for yourself.
  • Include supporting attachments with the assessor’s and municipal clerk’s copies as required.

Comparable-sale evidence

The current instructions permit up to five comparable sales. If they were not submitted with the petition, the comparable information generally must reach the assessor, clerk and county board no later than seven calendar days before the hearing.

  • Include block and lot.
  • Include sale price.
  • Include sale/deed date.
  • Use actual comparable sales—not merely neighboring assessments—as evidence of market value.
  • Photos, survey and cost information can also be relevant.
Appeal the value, not the dollar amount of taxes. The A-1 instructions focus the case on the property’s assessable market value. A higher tax bill alone does not establish that the assessment is wrong.
Official New Jersey Division of Taxation form Open Petition of Appeal A-1

North Carolina: Owner, Parcel and Address Search + UC Atlas

Union County North Carolina provides one of the clearest official search workflows of the four jurisdictions.

Search the Property Portal

The county says owners can search the Property Portal using their name, Parcel ID or address. The portal was introduced so owners could review property-record characteristics and communicate corrections to Tax Administration.

Wrong square footage, bedrooms or bathrooms?

The county says property owners can submit correction requests through the Property Portal for details such as property size or bedroom/bathroom counts. After submission, the Tax Administrator’s Office sends confirmation, reviews the request and may contact the owner if more information or an inspection is required.

Micro-level correction path: identify the parcel → open the property card → document the incorrect characteristic → submit the portal correction → save the confirmation → respond if the county requests supporting information or an inspection.

Use UC Atlas instead of old GoMAPS links

Union County launched UC Atlas in 2025 after the previous GoMAPS system was retired. UC Atlas supports mapping and property lookup, parcel information, zoning and other geographic layers.

GIS is not a survey: use the Register of Deeds for recorded deeds or surveys when the question concerns legal ownership, boundary location or another recorded land issue.

2026 appeal status

The ordinary 2026 real-property appeal window closed when the Board of Equalization and Review adjourned on May 6, 2026.

Owners receiving a real-property assessment notice after the Board’s adjournment can have a separate 15-day appeal period from the later notice. Personal-property appeals use different notice-based timing.

Current 2026 forms

The county’s forms page currently lists the 2026 Real Property Valuation Appeal Form, Personal Property Valuation Appeal Form, Improvement Listing Form and multiple 2026 property-tax-relief forms.

Official Union County NC final-action resources

2026 Appeal Deadline Comparison

These four Union Counties do not share an appeal calendar.

State
Ordinary 2026 timing
What to do now
South Dakota
Local Board March 12; County/Consolidated Board April 7; OHE May 15.
Ordinary stages have passed. Review the actual notice and special statutory route before assuming a late appeal exists.
Oregon
Most value appeals: after tax statement and before December 31.
Prepare for the upcoming statement/appeal window rather than treating the deadline as already expired.
New Jersey
Generally April 1 or 45 days after bulk mailing, whichever is later; generally May 1 for qualifying revaluation/reassessment districts.
Ordinary 2026 filing has generally passed. Read the actual notice before assuming a different deadline.
North Carolina
Union County ordinary 2026 real-property window closed May 6.
A later-issued assessment notice can create a separate 15-day window.

Where to Check the Actual Property Tax Bill

Do not confuse an assessor’s value page with the collector’s live payment account.

State
Tax-collection office
Key user-help point
South Dakota
Union County Treasurer
Use unioncountysdtax.us for current amount/payment status. Beacon is not proof that taxes are paid.
Oregon
Union County Assessor / Tax Collector
The same department administers both assessment and tax collection.
New Jersey
Municipal tax collector
Identify the municipality before looking for the actual tax bill or making a payment.
North Carolina
Union County Tax Administration / Tax Collector
Use the county Tax Inquiry/payment route rather than relying only on a static property card.
Before paying: verify the state, parcel/account number, owner or property location, tax year, total amount due and payment-processing fee. Save the confirmation after submission.

Parcel Maps Are for Research; Deeds Are for Recorded Ownership

South Dakota

Beacon provides the assessment/GIS map. For the recorded instrument itself, use Union County’s Register of Deeds.

Oregon

Use county tax maps or ORMAP for map research. Use the County Clerk/Recorder for recorded real-property documents.

New Jersey

Use the state Property Explorer for parcel identification. Use the Union County Clerk’s Online Public Land Records for deeds and other recorded instruments.

North Carolina

Use UC Atlas for map research. The Register of Deeds says its land-record index is name-based; for an address-first ownership search, begin with the Tax Assessor.

New Jersey recorded-document search

The Union County Clerk’s official online land-record index contains records from June 1, 1977 forward and supports searches including name, date range, book/page and instrument number. Older records can require office research.

North Carolina deed-search limitation

The Union County NC Register of Deeds states that its land-record system is name-based. If you know only an address, use the Tax Assessor property search first, obtain the owner/parcel information and then move to recorded land records.

Boundary dispute? No assessor or GIS map should replace a professional survey when deciding a fence line, easement, encroachment or legally controlling parcel boundary.

Union County Property Search Not Working? Use This Troubleshooter

Problem
Likely reason
Best next action
Nothing matches the address
Wrong Union County state or over-formatted address.
Confirm state/city, then remove unit, ZIP, punctuation and unnecessary street-direction wording.
Owner name finds nothing
The system may not support owner search, ownership may be under an entity, or privacy rules may hide the name.
Switch to address, parcel/PIN, block/lot or map search.
Previous owner appears
Assessment and deed systems can update at different times.
Verify the recorded deed before asking the assessor to correct its ownership display.
SD Beacon tax figure looks wrong
Beacon is not the Treasurer’s current-payment verification system.
Use unioncountysdtax.us or contact the Treasurer.
Oregon RMV is higher than taxable value
Oregon’s RMV and assessed-value system uses different statutory concepts.
Read the actual assessed/taxable value and tax statement before calculating a tax estimate.
NJ owner is missing
Annual data timing or Daniel’s Law redaction.
Use municipality + address/block-and-lot, then municipal assessor or recorded land records as needed.
NC GoMAPS bookmark no longer works
GoMAPS was retired and replaced.
Use UC Atlas.
NC property characteristics are wrong
Assessment record needs review.
Use the Property Portal correction workflow and save the submission confirmation.
Assessment and tax bill differ
Valuation and tax collection are separate calculations/records.
Match the correct year and use the tax collector for the live bill.
GIS boundary differs from fence
GIS is not a legal survey.
Review recorded deed/plat information and use a licensed surveyor if legal location matters.

Prepare Before Calling a Union County Property Office

The right parcel identifier and a one-sentence question can prevent being transferred between assessment, tax and deed offices.

Jurisdiction
Office
Verified details
Union County SD
Director of Equalization
209 East Main Street, Suite 130, Elk Point, SD 57025
605-356-2252
Mon–Fri 8:30 a.m.–5:00 p.m.
Union County SD
Treasurer
209 East Main Street, Suite 220, Elk Point, SD 57025
605-356-2391
Mon–Fri 8:30 a.m.–4:30 p.m.
Union County OR
Assessor / Tax Collector
1001 Fourth Street, Suite A & B, La Grande, OR 97850
541-963-1002
Mon–Thu 8:30 a.m.–5:00 p.m.; lunch closure 12–1 p.m.
Union County NC
Tax Administration / Assessor
500 N. Main Street, Suite 236, Monroe, NC
Assessor: 704-283-3746
Union County NJ
Municipal assessor / County Taxation Board
Identify the municipality first. Union County’s central information line is 908-527-4000.

Assessment call script

“I am researching property [parcel/PIN/account number] in Union County, [state]. I need help confirming the [owner display / assessed value / property characteristic / appeal status]. The property address is [address].”

Tax-payment call script

“I need the current tax status for [parcel/account number] in Union County, [state]. Please confirm the tax year, current amount due, payment posting status and any applicable interest or fee.”

Final Property Record Verification Checklist

  • Correct Union County state confirmed.
  • Correct municipality confirmed when applicable.
  • Physical address matches.
  • Parcel, PIN, block/lot or account number matches.
  • Correct tax or assessment year selected.
  • Owner display is not being treated as automatic proof of legal title.
  • Current tax balance was checked with the collector/treasurer.
  • GIS lines are not being treated as a legal survey.
  • Appeal deadline was checked for the correct state and notice.
  • Payment, appeal or document order is being completed on the responsible official system.

Official Action Links

Use these only after you have identified the correct state and task.

South Dakota

Assessment/GIS research uses Beacon; live tax status belongs with the Treasurer.

North Carolina

Use Property Portal for record lookup and corrections; UC Atlas for current map research.

Union County Property Search FAQs

Which Union County assessor property search should I use?

Confirm the state first. Use the Director of Equalization and Beacon for Union County South Dakota, the Assessor / Tax Collector for Oregon, the municipal-assessor and state parcel system for New Jersey, and Union County Tax Administration’s Property Portal for North Carolina.

Can I search Union County property records by address?

Yes. South Dakota explicitly supports Beacon address search, North Carolina supports Property Portal address search, New Jersey Property Explorer supports address-based parcel research, and Oregon provides an official county property-record inquiry system.

Can I search Union County property records by owner name?

It depends on the state. North Carolina officially supports owner-name searches. South Dakota’s county instructions list Address, Parcel ID and Section/Township/Range rather than owner name. In New Jersey, owner information can be affected by municipal record structure, annual-data timing and privacy redactions.

What is the assessor called in Union County South Dakota?

The county assessor function is performed by the Union County Director of Equalization. That office handles assessment matters and directs users to Beacon for assessed values, basic tax information and GIS data.

Can I use South Dakota Beacon to prove my property taxes are paid?

No. The Union County Treasurer specifically says not to use Beacon to confirm taxes paid or determine the amount currently due. Use the Treasurer’s live tax-payment system or contact the office.

When is the Oregon property-value appeal deadline?

For most Oregon value appeals, the petition is filed with the Property Value Appeals Board after the tax statement is received and before December 31, or the next business day when December 31 falls on a weekend or holiday.

Why must I know the municipality for Union County New Jersey?

New Jersey assessments are prepared by local municipal assessors. Knowing the municipality lets you identify the correct assessment jurisdiction and use address, block-and-lot and other parcel information reliably.

How much does a New Jersey property assessment appeal cost?

The current A-1 instructions list valuation-appeal fees from $5 to $150 depending on assessed value, with separate rules for classification and other appeals. Certain specified deduction-denial petitions have no filing fee.

What happened to Union County North Carolina GoMAPS?

Union County replaced GoMAPS with UC Atlas in 2025. Use UC Atlas for current parcel and GIS research and the Property Portal for assessment-record lookup and correction requests.

Is a Union County assessor or GIS map a legal survey?

No. Assessor and GIS parcel maps are research tools. Use recorded deeds, plats and a professional survey when a legal boundary, fence, easement or encroachment decision depends on the exact property line.

State First, Record Second

The safest Union County property lookup starts with the state—not the owner name. Once the jurisdiction is correct, use the parcel/account identifier whenever possible, verify the tax year and move to the responsible office for payment, appeal or deed work.

This prevents the two costliest mistakes on this search intent: relying on a real property record from the wrong Union County and using an assessor/GIS page as if it were a live tax-payment or legal-title system.

Property Search Smart Helper

Find the Right Property Record, Tax Bill, Deed or Assessor Search Route

Use this helper before searching county property records. It helps you choose the right office, prepare the right details, avoid wrong-office mistakes, and review property records safely.

Official-source focused Use county assessor, appraiser, auditor, tax collector, treasurer, recorder, clerk, GIS and appeal resources where available.
Not legal or tax advice Always confirm values, taxes, deeds, exemptions, appeals and deadlines with the official county office.
Works across states Designed for APN, PIN, parcel number, STRAP, folio, account number, GIS map and deed-record searches.

Property Search Route Finder

Choose what you have and what you want to find. The tool will suggest the best search route and common mistake to avoid.

Copied.

Parcel / APN / PIN Format Helper

Parcel numbers are formatted differently by county. Try these variations if your official search does not return results.

This tool does not send or store your entry. It only creates search-format ideas on this page.
Copied.

Assessor, Tax Collector, Recorder or GIS?

Select your issue and this tool will show the office that usually handles it.

Choose an option above
This finder helps prevent wrong-office mistakes. Exact office names vary by state and county.

Simple Property Tax Estimate Helper

This is a general estimate only. State and county tax rules differ, so always verify final bills with the official tax collector, treasurer or county tax office.

Copied.

Exemption / Appeal Readiness Checklist

Use this before applying for an exemption or challenging a value. Missing proof is one of the biggest reasons users waste time or miss deadlines.

Property Record Review Checklist

Review these fields before relying on any assessor, appraiser, auditor, property appraiser, tax or deed record.

Official-source and accuracy note: This helper is for educational use only. Property values, tax bills, deeds, exemptions, GIS boundaries and appeal deadlines can change. Always confirm final information with the official county assessor/appraiser/auditor, tax collector/treasurer, recorder/clerk, GIS office or appeal board.