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Union County, NJ Parcels & GIS Data

Union County, NJ parcel data: 150,760 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 150,760 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 150,760 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL). For the LBCS columns, only real classifications count: the to-be-determined and not-applicable placeholder codes are excluded.

ColumnCoverageRecords populated
lrid100%150,760
parcelid100%150,760
parcelid2100%150,760
ogparcelid100%150,760
ogparcelid2100%150,760
parentid<0.1%0
stackid<0.1%0
geoid100%150,760
statefp100%150,760
countyfp100%150,760
countyname100%150,760
cousubfp100%150,760
cousubname100%150,760
tractce100%150,760
tractname100%150,760
taxacctnum37.1%55,965
taxyear100%150,760
taxdistrict<0.1%0
usecode98.8%149,021
usedesc93.8%141,343
zoningcode0.9%1,365
zoningdesc0.9%1,372
numbldgs90.8%136,954
numunits90.5%136,473
yearbuilt52.5%79,140
numfloors78.3%118,020
bldgsqft50.2%75,692
bedrooms0.2%342
halfbaths0.1%191
fullbaths0.2%347
imprvalue93.7%141,321
landvalue93.7%141,321
agvalue93.7%141,321
totalvalue93.7%141,321
taxacres<0.1%0
calcarea100%150,760
saleamt93.7%141,323
saledate86.7%130,690
ownertype93.9%141,492
ownername93.8%141,339
owneraddr92.5%139,415
ownercity0.9%1,382
ownerstate0.9%1,359
ownerzip0.9%1,352
parceladdr99.7%150,341
parcelcity98.8%148,952
parcelstate100%150,760
parcelzip100%150,760
legaldesc93.9%141,593
township<0.1%0
section<0.1%0
qtrsection<0.1%0
range<0.1%0
plssdesc<0.1%0
book87.2%131,513
page87.2%131,489
block100%150,751
lot100%150,759
parceltype1.3%1,951
accesstype1.6%2,483
iucnclass0.7%1,010
placename6.5%9,870
placetype6.5%9,731
firmid100%150,693
firmdate100%150,693
fldzone100%150,693
zonesubty95.7%144,224
staticbfe0.1%158
elevmin100%150,722
elevmax100%150,722
elevavg100%150,722
fireplaces<0.1%0
heating20.8%31,321
heatfuel20.1%30,344
cooling21.3%32,075
foundation0.1%224
roofcover0.2%296
siding0.2%236
bldgtype<0.1%0
naicscode5.7%8,643
frsid<0.1%25
dfrurl<0.1%25
caapermit<0.1%25
cwapermit<0.1%25
rcrapermit<0.1%25
updated95.3%143,642
centroidx100%150,760
centroidy100%150,760
surfpointx100%150,760
surfpointy100%150,760
geom100%150,760
extras100%150,760
ownerlist73.6%110,980
placefp64.0%96,424
zoningurl0.6%915
lbcsactivity96.7%145,759
lbcsfunction95.1%143,348
lbcstype96.6%145,570
lbcscharacter98.5%148,458
lbcsownership94.0%141,670
sourceurl1.1%1,646

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) 3 entities · most recent acquisition per entity · generated 2026-10-10 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 ADDRESS building place_type landmkname add_number primename unit floor post_code nbrhd_comm uninc_comm post_comm county state country geom 47 cols ⇢ house category near house_number road unit level postcode suburb city_district city state_district state country geom extras PARCEL pams_pin pin_nodup prop_class prop_loc mun_name pclblock pcllot pcllastupd geom 7 cols ⇢ parcelid parcelid2 usecode parceladdr parcelcity block lot updated geom extras ZONING geom code_url acres zone_desc geom code_url acres zone_desc_clean zone_code_candidate determined · ground truth 100% lrid 100% geoid 100% statefp 100% countyfp 100% countyname 100% cousubfp 100% cousubname 100% tractce 100% tractname 100% taxyear 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 95.7% zonesubty 0.1% staticbfe 100% firmdate 100% firmid supplemented · derived / other pipelines 93.8% usedesc 90.8% numbldgs 90.5% numunits 52.5% yearbuilt 78.3% numfloors 50.2% bldgsqft 93.7% imprvalue 93.7% landvalue 93.7% agvalue 93.7% totalvalue 93.7% saleamt 86.7% saledate 93.9% ownertype 93.8% ownername 92.5% owneraddr 100% parcelstate 100% parcelzip 93.9% legaldesc 87.2% book 87.2% page 73.6% ownerlist 64.0% placefp 96.7% lbcsactivity 95.1% lbcsfunction 96.6% lbcstype 98.5% lbcscharacter 94.0% lbcsownership lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxyear usecode usedesc numbldgs numunits yearbuilt numfloors bldgsqft imprvalue landvalue agvalue totalvalue calcarea saleamt saledate ownertype ownername owneraddr parceladdr parcelcity parcelstate parcelzip legaldesc book page block lot firmid firmdate fldzone zonesubty staticbfe elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras ownerlist placefp lbcsactivity lbcsfunction lbcstype lbcscharacter lbcsownership publish.parcel_layer columns not fed by these sources (39) — empty or below 50% fill in this county parentid, stackid, taxacctnum, taxdistrict, zoningcode, zoningdesc, bedrooms, halfbaths, fullbaths, taxacres, ownercity, ownerstate, ownerzip township, section, qtrsection, range, plssdesc, parceltype, accesstype, iucnclass, placename, placetype, fireplaces, heating, heatfuel, cooling foundation, roofcover, siding, bldgtype, naicscode, frsid, dfrurl, caapermit, cwapermit, rcrapermit, zoningurl, sourceurl ADDRESS 15 mapped · 47 kept in extras · 6 unmapped (NULL) SOURCE COLUMNS HARMONIZED → ADDRESS building place_type landmkname add_number primename unit floor post_code nbrhd_comm uninc_comm post_comm county state country geom house category near house_number road unit level postcode suburb city_district city state_district state country geom extras · 47 source columns preserved as json subtype, primarypt, status, discrpagid, source, dateupdate editor, effective, expire, site_nguid, adddatauri, inc_muni addnum_pre, addnum_suf, st_premod, st_predir, st_pretyp st_presep, st_name, st_postyp, st_posdir, st_posmod, fulladdr lst_predir, lst_name, lst_type, lstposdir, lst_pname, esn msagcomm, post_code4, post_source, cass_valid, room, seat addtl_loc, fullsubadd, mile_post, placement, long_, lat, elev natgrid_coord, rcl_nguid, pcl_guid, comments, globalid extras not present in source — filled with NULL (6) staircase, entrance, po_box, island, country_region, world_region PARCEL 9 mapped · 1 transformed · 7 kept in extras · 45 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL pams_pin pin_nodup prop_class prop_loc mun_name pclblock pcllot pcllastupd geom parcelid parcelid2 usecode parceladdr parcelcity block lot updated to_timestamp(pcllastupd / 1000.0)::text geom extras · 7 source columns preserved as json pcl_pbdate, pcl_mun, pclqcode, gis_pin, cd_code, county pcl_guid extras not present in source — filled with NULL (45) taxacctnum, taxyear, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths imprvalue, landvalue, agvalue, totalvalue, taxacres, saleamt, saledate, ownername, owneraddr, ownercity, ownerstate, ownerzip, parcelstate parcelzip, legaldesc, township, section, qtrsection, range, plssdesc, book, page, sourceurl, taxdistrict, parentid, heatfuel, fireplaces heating, cooling, foundation, roofcover, siding ZONING 5 mapped · 2 transformed SOURCE COLUMNS HARMONIZED → ZONING geom code_url acres zone_desc geom code_url acres zone_desc_clean NULLIF(TRIM(zone_desc), '')::text zone_code_candidate NULLIF(TRIM( CASE WHEN zone_desc IS NOT NULL AND strpos(zone_de…

Neighboring counties

Parcel data for counties bordering Union County:

Frequently asked questions

Where can I find Union County, NJ parcel and GIS data?

Land Records publishes a Union County, NJ parcel dataset in which every parcel carries its boundary polygon (GIS geometry) along with ownership, assessed value, land use, acreage, and sale history. Preview it in the interactive explorer on this page, or download the full Union County, NJ dataset as a GeoPackage or CSV.

How many parcels are in Union County, NJ?

The current dataset contains 150,760 parcel records for Union County, NJ, each with its boundary geometry and assessor attributes.

What is the FIPS code for Union County, NJ?

The FIPS code for Union County, NJ is 34039.

What information does each Union County, NJ parcel record include?

Each Union County, NJ parcel record includes 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 the most recent sale price and date — plus the parcel boundary polygon. Per-attribute fill rates are listed in the coverage table on this page.

Is Union County, NJ parcel data free?

You can preview Union County, NJ parcels for free in the interactive explorer. The complete dataset is available as a one-time download or through the nationwide parcel web service; see the download options on this page for current pricing.

Does Union County, NJ have an official GIS or property records website?

Yes — the official Union County, NJ government website is linked in the county details above. Land Records standardizes Union County, NJ assessor and recorder records into a single nationwide parcel schema with GIS boundary geometry.

On this page

Attribute coverageSchema mappingNeighboring countiesFAQRelated