Land Records LogoLand Records
Contact Us

Union County, TN Parcels & GIS Data

Union County, TN parcel data: 15,184 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Union County, Tennessee parcel data covering 15,184 property records.

This page documents parcel-level coverage for Union County, Tennessee. 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 located in the U.S. state of Tennessee. As of the 2020 census, its population was 19,802. Its county seat is Maynardville.

FIPS 47173

Official county website: http://www.unioncountytn.com

The FIPS code for Union County is 47173.

ExploreBuyDownload Union County data
KnoxClaiborneGraingerCampbellAndersonUnion
Hosted Web API$200/mo

Attribute coverage

Union County contains 15,184 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%15,184
parcelid100%15,184
parcelid23.4%513
ogparcelid100%15,184
ogparcelid23.4%513
parentid<0.1%0
stackid<0.1%0
geoid100%15,184
statefp100%15,184
countyfp100%15,184
countyname100%15,184
cousubfp100%15,184
cousubname100%15,184
tractce100%15,184
tractname100%15,184
taxacctnum<0.1%0
taxyear<0.1%0
taxdistrict<0.1%0
usecode<0.1%0
usedesc1.2%183
zoningcode<0.1%0
zoningdesc<0.1%0
numbldgs2.9%445
numunits<0.1%0
yearbuilt<0.1%0
numfloors<0.1%0
bldgsqft<0.1%0
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue<0.1%0
landvalue<0.1%0
agvalue<0.1%0
totalvalue<0.1%0
taxacres100%15,184
calcarea100%15,184
saleamt<0.1%0
saledate<0.1%0
ownertype97.6%14,819
ownername97.6%14,819
owneraddr<0.1%0
ownercity<0.1%0
ownerstate<0.1%0
ownerzip<0.1%0
parceladdr97.6%14,822
parcelcity97.6%14,822
parcelstate100%15,184
parcelzip99.7%15,146
legaldesc95.2%14,462
township<0.1%0
section<0.1%0
qtrsection<0.1%0
range<0.1%0
plssdesc<0.1%0
book<0.1%0
page<0.1%0
block<0.1%0
lot97.6%14,822
parceltype1.0%151
accesstype10.9%1,651
iucnclass10.9%1,649
placename12.9%1,965
placetype12.9%1,956
firmid100%15,180
firmdate100%15,180
fldzone100%15,180
zonesubty98.9%15,010
staticbfe<0.1%0
elevmin98.8%15,007
elevmax98.8%15,007
elevavg98.8%15,007
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
naicscode15.7%2,386
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated100%15,184
centroidx100%15,184
centroidy100%15,184
surfpointx100%15,184
surfpointy100%15,184
geom100%15,184
extras100%15,184
ownerlist90.7%13,778
placefp18.8%2,854
zoningurl<0.1%0
lbcsactivity3.0%458
lbcsfunction2.9%440
lbcstype4.1%627
lbcscharacter3.6%545
lbcsownership98.0%14,878
sourceurl<0.1%0

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, Tennessee (47173) 1 entity · 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 PARCEL gislink gislink2 cama_deeda last_edi_1 geom 15 cols ⇢ parcelid parcelid2 taxacres updated geom extras determined · ground truth 100% lrid 100% geoid 100% statefp 100% countyfp 100% countyname 100% cousubfp 100% cousubname 100% tractce 100% tractname geom · derived from geometry geom dem.us_1m · USGS 1m DEM 98.8% elevmin 98.8% elevmax 98.8% elevavg s_fld_haz_ar · FEMA NFHL 100% fldzone 98.9% zonesubty 100% firmdate 100% firmid supplemented · derived / other pipelines 97.6% ownertype 97.6% ownername 97.6% parceladdr 97.6% parcelcity 100% parcelstate 100% parcelzip 95.2% legaldesc 97.6% lot 90.7% ownerlist 98.0% lbcsownership lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxacres calcarea ownertype ownername parceladdr parcelcity parcelstate parcelzip legaldesc lot firmid firmdate fldzone zonesubty elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras ownerlist lbcsownership publish.parcel_layer columns not fed by these sources (62) — empty or below 50% fill in this county parentid, stackid, taxacctnum, taxyear, taxdistrict, usecode, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors bldgsqft, bedrooms, halfbaths, fullbaths, imprvalue, landvalue, agvalue, totalvalue, saleamt, saledate, owneraddr, ownercity, ownerstate ownerzip, township, section, qtrsection, range, plssdesc, book, page, block, parceltype, accesstype, iucnclass, placename, placetype, staticbfe fireplaces, heating, heatfuel, cooling, foundation, roofcover, siding, bldgtype, naicscode, frsid, dfrurl, caapermit, cwapermit, rcrapermit placefp, zoningurl, lbcsactivity, lbcsfunction, lbcstype, lbcscharacter, sourceurl PARCEL 5 mapped · 2 transformed · 15 kept in extras · 49 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL gislink gislink2 cama_deeda last_edi_1 geom parcelid NULLIF(trim(gislink), '')::text parcelid2 NULLIF(trim(gislink2), '')::text taxacres updated geom extras · 15 source columns preserved as json id, county_id, parcel_typ, calc_acre, last_updat, globalid created_us, created_da, last_edite, cama_calca, display_ac group_lett, parcelwp, inst_num, note extras not present in source — filled with NULL (49) taxacctnum, taxyear, usecode, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths fullbaths, imprvalue, landvalue, agvalue, totalvalue, saleamt, saledate, ownername, owneraddr, ownercity, ownerstate, ownerzip, parceladdr parcelcity, parcelstate, parcelzip, legaldesc, township, section, qtrsection, range, plssdesc, book, page, block, lot, sourceurl, taxdistrict parentid, heatfuel, fireplaces, heating, cooling, foundation, roofcover, siding

Neighboring counties

Parcel data for counties bordering Union County:

Frequently asked questions

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

Land Records publishes a Union County, TN 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, TN dataset as a GeoPackage or CSV.

How many parcels are in Union County, TN?

The current dataset contains 15,184 parcel records for Union County, TN, each with its boundary geometry and assessor attributes.

What is the FIPS code for Union County, TN?

The FIPS code for Union County, TN is 47173.

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

Each Union County, TN 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, TN parcel data free?

You can preview Union County, TN 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, TN have an official GIS or property records website?

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

On this page

Attribute coverageSchema mappingNeighboring countiesFAQRelated