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Advertise here →Union County · South Dakota
Union County, South Dakota real estate & cities.
Countywide real estate hub for Union County, SD — 2 live city guides, public market snapshots, and connections to local professionals.
Union County, South Dakota is a county-level market on USAHouses.com — a countywide hub linking verified city guides, public market data, and ways to connect with licensed professionals. We currently publish 2 city-level guides inside Union County, covering resale homes, condos, land, and new construction across the county.
County pages complement city guides: they group places by official Census county or county-equivalent boundaries, surface nearby counties and major South Dakota cities, and link to NewUSAHouses.com builder hubs when available.
Union County corresponds to Census FIPS code 46127. FIPS is the geographic code for USA Counties.
County snapshot
Union County at a glance
City guides on USAHouses
2 live
Combined population (catalogued places)
7,147
Median household income (midpoint of places)
$123,438
Median home value range (Census ACS)
$234,500 – $495,000
County price trend (FHFA HPI)
+10.0% (2025)
Market data compiled from public sources on linked city guides and county-level datasets; deemed reliable but not guaranteed. Full source list ↗
Places in Union County
Cities & towns in Union County
Union County includes 2 places USAHouses.com tracks in its city manifest; 2 already have live market guides linked below.
Nearby
Nearby counties & major cities in South Dakota
Other counties in South Dakota with USAHouses city or county coverage:
Minnehaha County
6 catalogued places
Lawrence County
4 catalogued places
Lincoln County
4 catalogued places
Meade County
2 catalogued places
Pennington County
2 catalogued places
Beadle County
1 catalogued place
Brookings County
1 catalogued place
Brown County
1 catalogued place
Larger South Dakota cities with live USAHouses market guides — populous places first, including major metro hubs when available:
New construction
New homes in & near Union County
Verified new-construction communities on NewUSAHouses.com in South Dakota — linked when a matching metro or state hub exists.
Local resources
Get help buying or selling in Union County
What can I afford?
Estimate a comfortable price range in under a minute, then connect with a lender for real numbers.
Rough estimate only (28% of income toward housing, ~6.5% illustrative rate, 30-year term) — not a loan offer or pre-qualification. Connect with a lender for real numbers →
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Lenders, inspectors, movers, and other local pros — this spot is open.
Advertise here →Reach Union County buyers
Builders: feature your communities in front of Union County buyers — learn about advertising ↗
Want to own this market? Ask about our Union County domains — see available domains ↗
Official resources
Union County government & services
Union County government
Official county or county-equivalent government website (source: public records / Wikidata). Official site ↗
County house price trend
FHFA all-transactions HPI annual change +10.0% (2025).
Common questions
Union County FAQ
What cities and towns are in Union County, SD?
USAHouses.com currently catalogues 2 places in Union County, with live market guides for 2 of them. Census recognizes additional small places and CDPs in most counties that may not yet have dedicated pages.
Where should I start looking for homes in Union County?
Start with the live city guides for Dakota Dunes, North Sioux City — each links Census market data, nearby places, and ways to connect with local professionals.
Does USAHouses.com cover new construction in Union County?
City and county guides link to NewUSAHouses.com where verified new-home communities exist in South Dakota. Use the new-construction section on this page for same-state builder hubs; availability varies by market.
How is the Union County housing market trending?
County-level FHFA house price index data shows a +10.0% annual change in 2025 — a countywide benchmark, not a guarantee for any single city or street.
How do I connect with an agent in Union County?
Use the lead form at the bottom of this page to describe your buy or sell goals in Union County. USA HOUSES LLC is a platform/media company, not a brokerage; licensed professionals are disclosed separately.
Search Union County
Look up homes in Union County
Search new construction and resale homes countywide — live MLS data, not just what's summarized on this page.
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Find your Union County home
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Where to go next
Get help in Union County
Tell us what you're looking for — buy, sell, both, invest, rent, or you're an agent, builder, vendor, or advertiser. Include where in Union County you want to buy or sell and your address if relevant.
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