Union County, SD Housing Market
The median sale price of a home in Union County was $415K last month, up 4.4% since last year. The median sale price per square foot in Union County is $167, up 16.0% since last year.
Union County Housing Market Trends
In July 2025, Union County home prices were up 4.4% compared to last year, selling for a median price of $415K. On average, homes in Union County sell after 12 days on the market compared to 32 days last year. There were 23 homes sold in July this year, down from 30 last year.

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View houses in Union County that sold recently
Recently sold homes
- $1,660,000 Last Sold Price4 beds4.5 baths6,677 sq ft753 Crooked Tree Ln, North Sioux City, SD 57049List Price$1,749,000Sale to List5% under listDays on Market184 days753 Crooked Tree Ln, North Sioux City, SD 57049
- $530,000 Last Sold Price5 beds3 baths3,495 sq ft634 Bluestem Trl, North Sioux City, SD 57049List Price$530,000Sale to List0% over listDays on Market34 days634 Bluestem Trl, North Sioux City, SD 57049
- $149,500 Last Sold Price4 beds1 bath1,418 sq ft401 Dakota St, Alcester, SD 57001List Price$149,500Sale to List0% over listDays on Market46 days401 Dakota St, Alcester, SD 57001
- $590,000 Last Sold Price4 beds3.5 baths4,396 sq ft300 Firethorn Trl, North Sioux City, SD 57049List Price$600,000Sale to List2% under listDays on Market90 days300 Firethorn Trl, North Sioux City, SD 57049
- $850,000 Last Sold Price5 beds3.5 baths4,968 sq ft701 E St Andrews Cir, North Sioux City, SD 57049List Price$860,000Sale to List1% under listDays on Market78 days701 E St Andrews Cir, North Sioux City, SD 57049
- $459,000 Last Sold Price3 beds3 baths2,488 sq ft469 E Pinehurst Trl, North Sioux City, SD 57049List Price$475,000Sale to List3% under listDays on Market33 days469 E Pinehurst Trl, North Sioux City, SD 57049
- $250,000 Last Sold Price—beds—baths—sq ftTBD 325 St, Elk Point, SD 57025List Price$350,000Sale to List29% under listDays on Market110 daysTBD 325 St, Elk Point, SD 57025
- $65,000 Last Sold Price1 bed1 bath576 sq ft209 N Douglas St, Elk Point, SD 57025List Price$94,900Sale to List32% under listDays on Market46 days209 N Douglas St, Elk Point, SD 57025
See all recently sold homes in Union County.
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Schools in Union County
- Elementary
- Middle
- High
GreatSchools Rating
7/10 Alcester-Hudson Elementary - 04 Public • PreK-6 | 195 Students | 1 reviews |
7/10 Dakota Valley Upper Elementary - 04 Public • 4-5 | 232 Students | 1 reviews |
7/10 Dakota Valley Elementary - 02 Public • K-3 | 365 Students | 4 reviews |
6/10 Beresford Elementary - 02 Public • K-5 | 307 Students | 3 reviews |
6/10 Ponca Elementary School Public • 3-6 | 125 Students | N/A |
Climate's impact on Union County housing
Learn about natural hazards and environmental risks, such as floods, fires, wind, and heat that could impact homes in Union County.
Flood Factor - Moderate
Flood Factor

Fire Factor - Moderate
Fire Factor

Wind Factor - Minor
Wind Factor

Heat Factor - Moderate
Heat Factor

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