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Union County, NJ Parcels & GIS Data

Union County, NJ parcel data: 140,924 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Union County, New Jersey parcel data covering 140,924 property records.

This page documents parcel-level coverage for Union County, New Jersey. Each parcel record carries its boundary polygon (GIS geometry) along with attributes such as the parcel ID/APN, owner name and mailing address, situs (property) address, assessed land and improvement values, acreage, land-use and zoning codes, year built, and most recent sale price and date. Exact fill rates for Union County are listed in the attribute-coverage table below. Preview the data in the interactive explorer, or download the complete Union County property dataset.

Union County is a county in the northern-central part of the U.S. state of New Jersey. As of the 2020 United States census, the county was the state's seventh-most-populous county with a population of 575,345, its highest decennial count ever and an increase of 38,846 (+7.2%) from the 2010 census count of 536,499. The United States Census Bureau's Population Estimates Program estimated a 2025 population of 601,863, an increase of 26,518 (+4.6%) from the 2020 decennial census.

FIPS 34039

Official county website: https://ucnj.org/

The FIPS code for Union County is 34039.

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Attribute coverage

Union County contains 140,924 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL).

ColumnCoverageRecords populated
lrid100%140,924
parcelid100%140,913
parcelid2100%140,896
ogparcelid100%140,909
ogparcelid2100%140,892
parentid<0.1%0
stackid<0.1%0
geoid100%140,924
statefp100%140,924
countyfp100%140,924
countyname100%140,924
cousubfp100%140,924
cousubname100%140,924
tractce100%140,924
tractname100%140,924
taxacctnum39.3%55,439
taxyear100%140,896
taxdistrict<0.1%1
usecode<0.1%53
usedesc99.6%140,413
zoningcode<0.1%1
zoningdesc<0.1%0
numbldgs100%140,918
numunits96.5%136,023
yearbuilt55.7%78,533
numfloors83.4%117,506
bldgsqft53.4%75,241
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue99.7%140,461
landvalue99.7%140,463
agvalue99.7%140,461
totalvalue99.7%140,463
taxacres<0.1%2
calcarea100%140,924
saleamt99.7%140,463
saledate99.7%140,463
ownertype99.7%140,489
ownername99.7%140,489
owneraddr98.3%138,493
ownercity<0.1%22
ownerstate<0.1%22
ownerzip<0.1%16
parceladdr100%140,888
parcelcity99.9%140,731
parcelstate100%140,924
parcelzip100%140,924
legaldesc100%140,870
township<0.1%0
section<0.1%0
qtrsection<0.1%0
range<0.1%0
plssdesc<0.1%0
book93.0%131,125
page93.0%131,102
block99.7%140,469
lot100%140,874
parceltype0.9%1,220
accesstype0.9%1,220
iucnclass0.4%500
placename5.9%8,351
placetype5.7%8,024
firmid100%140,864
firmdate100%140,864
fldzone100%140,864
zonesubty95.8%135,009
staticbfe0.1%138
elevmin100%140,896
elevmax100%140,896
elevavg100%140,896
fireplaces<0.1%0
heating<0.1%0
heatfuel<0.1%0
cooling<0.1%0
foundation<0.1%0
roofcover<0.1%0
siding<0.1%0
bldgtype<0.1%0
naicscode15.1%21,240
frsid0.4%530
dfrurl0.4%530
caapermit0.4%530
cwapermit0.4%530
rcrapermit0.4%530
updated100%140,920
centroidx100%140,924
centroidy100%140,924
surfpointx100%140,924
surfpointy100%140,924
geom100%140,924
extras100%140,924
lrversion100%140,924

Schema mapping

How source columns from the acquired Union County GIS layers map into the harmonized entity schemas and assemble into the published parcel table, alongside supplemented fields (elevation, flood zone) and deterministic columns.

Schema mapping — Union County, New Jersey (34039) 1 entity · most recent acquisition per entity · generated 2026-07-13 direct column transformed (expression) geometry extras json supplemented determined ALL ENTITIES → FINAL PARCEL SCHEMA Harmonized entity columns assemble into publish.parcel_layer — matched by column name. Supplemented fields show their fill rate in this county. SOURCE COLUMNS HARMONIZED ENTITIES PUBLISH.PARCEL_LAYER PARCEL apn search_apn owner_firstname owner_lastname owner_st_number owner_st_dir owner_st_name owner_st_type owner_st_unit owner_city owner_state owner_zip site_st_number site_st_dir site_st_name site_st_type site_st_unit site_city site_state site_zip geom 7 cols ⇢ parcelid parcelid2 ownername owneraddr ownercity ownerstate ownerzip parceladdr parcelcity parcelstate parcelzip geom extras determined · ground truth 100% lrid 100% geoid 100% statefp 100% countyfp 100% countyname 100% cousubfp 100% cousubname 100% tractce 100% tractname 100% updated 100% lrversion geom · derived from geometry geom dem.us_1m · USGS 1m DEM 100% elevmin 100% elevmax 100% elevavg s_fld_haz_ar · FEMA NFHL 100% fldzone 95.8% zonesubty 0.1% staticbfe 100% firmdate 100% firmid supplemented · derived / other pipelines 100% taxyear 100% usedesc 100% numbldgs 96.5% numunits 55.7% yearbuilt 83.4% numfloors 53.4% bldgsqft 100% imprvalue 100% landvalue 100% agvalue 100% totalvalue 100% saleamt 100% saledate 100% legaldesc 93.0% book 93.0% page 100% block 100% lot lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxyear usedesc numbldgs numunits yearbuilt numfloors bldgsqft imprvalue landvalue agvalue totalvalue calcarea saleamt saledate ownertype ownername owneraddr ownercity ownerstate ownerzip parceladdr parcelcity parcelstate parcelzip legaldesc book page block lot firmid firmdate fldzone zonesubty staticbfe elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras lrversion publish.parcel_layer columns not fed by these sources (35) — empty or below 50% fill in this county parentid, stackid, taxacctnum, taxdistrict, usecode, zoningcode, zoningdesc, bedrooms, halfbaths, fullbaths, taxacres, township, section qtrsection, range, plssdesc, parceltype, accesstype, iucnclass, placename, placetype, fireplaces, heating, heatfuel, cooling, foundation roofcover, siding, bldgtype, naicscode, frsid, dfrurl, caapermit, cwapermit, rcrapermit PARCEL 12 mapped · 3 transformed · 7 kept in extras · 42 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL apn search_apn owner_firstname owner_lastname owner_st_number owner_st_dir owner_st_name owner_st_type owner_st_unit owner_city owner_state owner_zip site_st_number site_st_dir site_st_name site_st_type site_st_unit site_city site_state site_zip geom parcelid parcelid2 ownername CAST(COALESCE(owner_firstname, '') || ' ' || COALESCE(owner_las… owneraddr CAST(COALESCE(owner_st_number, '') || ' ' || COALESCE(owner_st_… ownercity ownerstate ownerzip parceladdr CAST(COALESCE(site_st_number, '') || ' ' || COALESCE(site_st_di… parcelcity parcelstate parcelzip geom extras · 7 source columns preserved as json site_st_post_dir, clientid, shape_starea__, shape_stlength__ stagingid, oldglobalid, globalid extras not present in source — filled with NULL (42) taxacctnum, taxyear, usecode, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths fullbaths, imprvalue, landvalue, agvalue, totalvalue, taxacres, saleamt, saledate, legaldesc, township, section, qtrsection, range, plssdesc book, page, block, lot, updated, sourceurl, taxdistrict, parentid, fireplaces, heating, cooling, foundation, roofcover, siding, heatfuel

Neighboring counties

Parcel data for counties bordering Union County:

On this page

Attribute coverageSchema mappingNeighboring countiesRelated