Land Records LogoLand Records
Contact Us

Union County, SD Parcels & GIS Data

Union County, SD parcel data: 13,687 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Union County, South Dakota parcel data covering 13,687 property records.

This page documents parcel-level coverage for Union County, South Dakota. 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 the southernmost county in the U.S. state of South Dakota. As of the 2020 census, the population was 16,811, making it the 13th most populous county in South Dakota. Its county seat has been Elk Point since April 30, 1865.

FIPS 46127

Official county website: http://unioncountysd.org

The FIPS code for Union County is 46127.

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

Attribute coverage

Union County contains 13,687 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%13,687
parcelid99.9%13,670
parcelid2<0.1%0
ogparcelid99.9%13,670
ogparcelid2<0.1%0
parentid<0.1%0
stackid<0.1%0
geoid100%13,687
statefp100%13,687
countyfp100%13,687
countyname100%13,687
cousubfp100%13,687
cousubname100%13,687
tractce100%13,687
tractname100%13,687
taxacctnum<0.1%0
taxyear99.9%13,670
taxdistrict<0.1%0
usecode<0.1%0
usedesc33.6%4,594
zoningcode0.3%45
zoningdesc<0.1%0
numbldgs96.1%13,154
numunits84.5%11,568
yearbuilt<0.1%0
numfloors<0.1%2
bldgsqft<0.1%0
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue84.4%11,556
landvalue84.5%11,568
agvalue84.5%11,568
totalvalue84.5%11,568
taxacres<0.1%0
calcarea100%13,687
saleamt<0.1%0
saledate<0.1%0
ownertype85.0%11,634
ownername85.0%11,634
owneraddr<0.1%0
ownercity<0.1%0
ownerstate<0.1%0
ownerzip<0.1%0
parceladdr69.7%9,534
parcelcity69.5%9,506
parcelstate100%13,687
parcelzip100%13,687
legaldesc<0.1%0
township95.6%13,082
section95.6%13,082
qtrsection95.6%13,082
range95.6%13,082
plssdesc95.6%13,082
book<0.1%0
page<0.1%0
block<0.1%0
lot<0.1%0
parceltype1.1%153
accesstype1.3%172
iucnclass1.0%143
placename4.8%651
placetype4.3%588
firmid75.9%10,389
firmdate75.9%10,389
fldzone75.9%10,389
zonesubty68.9%9,434
staticbfe<0.1%0
elevmin100%13,685
elevmax100%13,685
elevavg100%13,685
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
naicscode3.4%465
frsid0.4%61
dfrurl0.4%61
caapermit0.4%61
cwapermit0.4%61
rcrapermit0.4%61
updated100%13,687
centroidx100%13,687
centroidy100%13,687
surfpointx100%13,687
surfpointy100%13,687
geom100%13,687
extras76.6%10,490
ownerlist84.9%11,619
placefp49.7%6,809
zoningurl<0.1%3
lbcsactivity34.1%4,671
lbcsfunction34.1%4,670
lbcstype39.0%5,336
lbcscharacter89.8%12,293
lbcsownership85.2%11,660
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, South Dakota (46127) 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 ZONING fld_zone sourceurl geom 2 cols ⇢ zoningcode sourceurl geom extras determined · ground truth 100% lrid 100% geoid 100% statefp 100% countyfp 100% countyname 100% cousubfp 100% cousubname 100% tractce 100% tractname 100% taxyear 100% updated geom · derived from geometry geom dem.us_1m · USGS 1m DEM 100% elevmin 100% elevmax 100% elevavg s_fld_haz_ar · FEMA NFHL 75.9% fldzone 68.9% zonesubty 75.9% firmdate 75.9% firmid supplemented · derived / other pipelines 100% parcelid 100% ogparcelid 96.1% numbldgs 84.5% numunits 84.4% imprvalue 84.5% landvalue 84.5% agvalue 84.5% totalvalue 85.0% ownertype 85.0% ownername 69.7% parceladdr 69.5% parcelcity 100% parcelstate 100% parcelzip 95.6% township 95.6% section 95.6% qtrsection 95.6% range 95.6% plssdesc 84.9% ownerlist 89.8% lbcscharacter 85.2% lbcsownership lrid parcelid ogparcelid geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxyear zoningcode numbldgs numunits imprvalue landvalue agvalue totalvalue calcarea ownertype ownername parceladdr parcelcity parcelstate parcelzip township section qtrsection range plssdesc firmid firmdate fldzone zonesubty elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras ownerlist lbcscharacter lbcsownership sourceurl publish.parcel_layer columns not fed by these sources (52) — empty or below 50% fill in this county parcelid2, ogparcelid2, parentid, stackid, taxacctnum, taxdistrict, usecode, usedesc, zoningdesc, yearbuilt, numfloors, bldgsqft, bedrooms halfbaths, fullbaths, taxacres, saleamt, saledate, owneraddr, ownercity, ownerstate, ownerzip, legaldesc, book, page, block, lot, 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 ZONING 3 mapped · 2 transformed · 2 kept in extras · 6 unmapped (NULL) SOURCE COLUMNS HARMONIZED → ZONING fld_zone sourceurl geom zoningcode NULLIF(fld_zone::text, '') sourceurl NULLIF(sourceurl::text, '') geom extras · 2 source columns preserved as json source, geometry_method extras not present in source — filled with NULL (6) zoningdesc, zoningtype, ordinance, setbacks, restrictions, notes

Neighboring counties

Parcel data for counties bordering Union County:

Frequently asked questions

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

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

How many parcels are in Union County, SD?

The current dataset contains 13,687 parcel records for Union County, SD, each with its boundary geometry and assessor attributes.

What is the FIPS code for Union County, SD?

The FIPS code for Union County, SD is 46127.

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

Each Union County, SD 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, SD parcel data free?

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

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

On this page

Attribute coverageSchema mappingNeighboring countiesFAQRelated