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Sell my land in
Union County.

Union County has 460.8 square miles of land in South Dakota. 3 mapped landscape regions meet across Union County: Loess Prairies, Missouri Alluvial Plain, James River Lowland.

A local understanding of the land. A straightforward conversation about what comes next.

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Larry G · “The Land Buyer”40+ years in real estate
Chicago and Northwestern Railroad depot in downtown Beresford, South Dakota; seen from the northwest. — Union County, South Dakota
A VIEW OF THE AREA

Chicago and Northwestern Railroad depot in downtown Beresford, South Dakota; seen from the northwest. — Union County, South Dakota

Photo & credit
THE SETTINGLoess Prairies
COMMUNITIES IN THE ATLAS19 listed localities
YOUR STARTING POINTOpen Union County on the map

THE UNION COUNTY LAND BRIEF

Land in the
Loess Prairies setting.

Union County has 460.8 square miles of land in South Dakota. 3 mapped landscape regions meet across Union County: Loess Prairies, Missouri Alluvial Plain, James River Lowland.

Glacial till plains and windblown loess hills make up the Western Corn Belt landscape. Near-level and rolling terrain are interspersed with steeper river valleys and hills.

Regional context: Western Corn Belt Plains ↗ · Regional mapping across the county footprint

Where the landscape changes

Union County intersects 3 mapped regional units. The largest mapped shares are:

  1. Loess Prairies50.3%
  2. Missouri Alluvial Plain35.7%
  3. James River Lowland14%
Percent of the county footprint covered by the regional layer, which covers approximately 100% of its cartographic area. Regional units do not define individual parcels.

Northern Glaciated Plains in Union County

Flat to gently rolling glacial terrain supports a prairie transition between taller and shorter grasses. Many temporary and seasonal wetlands occupy depressions left in the glacial landscape.

Read the regional source ↗

Finding your parcel within Union County

The atlas lists 19 cities, towns, townships, and Census communities associated with Union County, including Elk Point, Sioux Valley, Virginia. The list includes overlapping geography types and does not divide the county into exclusive service areas.

Union County

Union County by land and water

The Census records 6.37 square miles of water within Union County, or 1.4% of its total area. That share is close to Union County’s 1.4%. This is geographic context; waterfront status and usable land must be checked at the parcel.

For scale, Union County has 10.9 times the land area of nearby Sioux Valley township (42.1 square miles). These areas describe boundaries, not comparable property prices.

The Census boundary meets Clay County, Lincoln County within South Dakota. A tract near one of these lines should be matched to the county identifier on its own records.

FROM LOCAL CONTEXT TO YOUR PARCEL

Three questions for
Union County land.

These starting questions follow this location’s jurisdiction, regional setting, and nearby geography. The answers come from the property itself.

01

Locate the parcel within Union County

Use a tax bill, deed, or assessor’s parcel number to pin down the land in Union County. The county includes 19 listed community geographies; a nearby community name does not prove the parcel is inside its limits.

02

Read the Loess Prairies setting

Loess Prairies belongs to Western Corn Belt Plains. Is the parcel on a till plain, loess hill or valley edge, and what existing drainage and access documentation is available? The wider county also reaches Northern Glaciated Plains; use the parcel’s location to choose the relevant setting.

03

Check the route, beyond Sioux Valley

Sioux Valley is 3.2 miles northeast of the Union County reference point. That geographic proximity does not establish a drivable route or legal access. Which road reaches your land, and is the right to use it recorded?

OPEN THE RIGHT MAP. FIND THE RIGHT RECORD.

Union County resources,
ready to explore.

The topographic link opens at this location’s reference point. Government links identify the actual named jurisdiction in the Census directory.

MAP CENTERED ON UNION COUNTY

USGS National Map

Begin at 42.8311° N, 96.6508° W. Locate your parcel and inspect the available terrain and geographic layers.

Explore Union County ↗CENSUS-LISTED GOVERNMENT WEBSITE

County Of Union

Use this county government’s site to identify the relevant office and its current instructions. Confirm that it administers the record or land-use question for your parcel.

Open County Of Union ↗THIS GEOGRAPHY’S CENSUS PROFILE

Union County data

View Census information selected by this county’s geographic identifier. Available statistics depend on the geography and survey.

View the geography profile ↗THE REGIONAL MAP SOURCE

Loess Prairies

Explore the agency mapping behind the Western Corn Belt Plains context in this guide. Use the detailed map to identify the unit at your actual property.

View regional mapping ↗
Additional South Dakota landowner resources

South Dakota DANR data and mapping

Official water, well, and environmental data tools.

South Dakota Water Rights Program

Agency guidance on water-use records, existing permits, and research assistance.

FEMA flood mapsUSDA Web Soil SurveyWetlands mapper

PLACES, DISTANCES & CONNECTIONS

The communities of Union County.

Sioux Valley lies about 3.2 miles northeast of Union County by reference-point distance. The diagram locates nearby community reference points within the county geography.

WITHIN THE COUNTY GEOGRAPHY

Union County in context

NSEWSioux Valley · 3.2 miles1Richland · 4.7 miles2Spink · 5.3 miles3Brule · 6.1 miles4Big Springs · 8.9 miles5Elk Point · 9.3 miles6OUTER RING: 9.3 MILES
  1. 1
    Sioux Valley3.2 mi · legal township
  2. 2
    Richland4.7 mi · census-designated place
  3. 3
    Spink5.3 mi · legal township
  4. 4
    Brule6.1 mi · legal township
  5. 5
    Big Springs8.9 mi · legal township
  6. 6
    Elk Point9.3 mi · legal township
Positions are calculated from Census reference points. Crowded labels use a leader line to their exact dot. Straight-line distances within South Dakota; no roads, travel times, or service boundaries are implied.
Alcestercity
Alcesterlegal township
Beresfordcity
Big Siouxlegal township
Big Springslegal township
Brulelegal township
Civil Bendlegal township
Dakota Dunescensus-designated place
Elk Pointcity
Elk Pointlegal township
Emmetlegal township
Jeffersoncity
Jeffersonlegal township
North Sioux Citycity
Prairielegal township
Richlandcensus-designated place
Sioux Valleylegal township
Spinklegal township
Browse all 19 communities
Explore South DakotaSearch another location

QUESTIONS GROUNDED IN THIS PLACE

Your Union County
land questions.

Have a tax bill, an inherited deed, or simply a map pin? Start with what you have.

What should I send for land in Union County?+

Send the parcel number or legal description, approximate acreage, and a map pin showing the property in Union County. Union County’s 460.8 square miles of land include many different property situations; the exact parcel is what we review.

Does Loess Prairies describe all of Union County?+

The county’s mapped footprint intersects 3 regional units; Loess Prairies is the largest mapped share. County-scale information cannot establish the soil, slope, drainage, or development potential of one tract.

Can I use Sioux Valley as a reference for my land?+

It can help explain the location: its Census point is about 3.2 miles northeast of Union County’s. That distance is not a driving route, utility connection, or comparable-sale adjustment. Share the actual access road and parcel records so we can review your property on its own facts.

Can I request an offer without being near Union County?+

Yes. Begin online with the property location and ownership details. Tell Larry G and the team what you know about the land, access, and any co-owners. We review the parcel before deciding whether to propose a purchase; if a sale moves forward, the closing company can explain remote signing arrangements.

Sources for this guide. 2025 U.S. Census geography supplies local names, area measurements, reference points, and map boundaries. Regional context uses EPA Level IV ecoregions mapping. Government links come from the Census 2026 Government Units Listing and are not individually certified by USA Land Offers. Read the mapping methods, coverage, and source details →

This guide describes a service area, not a local office. Maps and regional facts do not establish an individual parcel’s boundaries, permitted use, risk, or value.

GREAT LAND. GOOD PEOPLE.

Your land in Union County.
Your next chapter.

Tell Larry G and the team what you own and what you have in mind. Start with a free property review and a straightforward conversation.

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Request my cash offer(855) 956-2650