Union County, SD Housing Market
The median sale price of a home in Union County was $410K last month, down 2.3% since last year. The median sale price per square foot in Union County is $153, down 3.5% since last year.
Union County Housing Market Trends
In October 2025, Union County home prices were down 2.3% compared to last year, selling for a median price of $410K. On average, homes in Union County sell after 65 days on the market compared to 53 days last year. There were 18 homes sold in October this year, up from 17 last year.

How much is your home worth? Track your home’s value and compare it to nearby sales.
How hot is the Union County housing market?
View houses in Union County that sold recently
Recently sold homes
- $299,000 Last Sold Price4 beds3 baths2,241 sq ft904 Shannon Dr, Jefferson, SD 57038List Price$300,000Sale to List0% under listDays on Market30 days904 Shannon Dr, Jefferson, SD 57038
- $325,000 Last Sold Price2 beds1 bath1,540 sq ft369 Lakeshore Dr, North Sioux City, SD 57049List Price$350,000Sale to List7% under listDays on Market61 days369 Lakeshore Dr, North Sioux City, SD 57049
- $625,000 Last Sold Price5 beds3 baths3,788 sq ft805 Brookside Dr, Jefferson, SD 57038List Price$625,000Sale to List0% over listDays on Market0 days805 Brookside Dr, Jefferson, SD 57038
- $200,000 Last Sold Price4 beds1.5 baths1,474 sq ft300 W Oak St St, Beresford, SD 57004List Price$209,900Sale to List5% under listDays on Market98 days300 W Oak St St, Beresford, SD 57004
- $450,000 Last Sold Price4 beds3 baths3,505 sq ft405 N Royal Troon Dr, North Sioux City, SD 57049List Price$465,000Sale to List3% under listDays on Market67 days405 N Royal Troon Dr, North Sioux City, SD 57049
- $366,500 Last Sold Price4 beds3 baths2,269 sq ft1404 Country Club Dr, Elk Point, SD 57025List Price$367,500Sale to List0% under listDays on Market153 days1404 Country Club Dr, Elk Point, SD 57025
- $900,000 Last Sold Price6 beds5.5 baths7,205 sq ft709 Cherry Hills Ln, North Sioux City, SD 57049List Price$900,000Sale to List0% over listDays on Market80 days709 Cherry Hills Ln, North Sioux City, SD 57049
- $1,305,000 Last Sold Price4 beds4.5 baths5,362 sq ft733 Monterey Trl, North Sioux City, SD 57049List Price$1,325,000Sale to List2% under listDays on Market196 days733 Monterey Trl, North Sioux City, SD 57049
See all recently sold homes in Union County.
See listings
Schools in Union County
- Elementary
- Middle
- High
GreatSchools Rating
7/10 Beresford Elementary - 02 Public • K-5 | 307 Students | 3 reviews |
6/10 Ponca Elementary School Public • 3-6 | 125 Students | N/A |
6/10 Alcester-Hudson Elementary - 04 Public • PreK-6 | 195 Students | 1 reviews |
6/10 Akron Westfield Elementary School Public • K-5 | 249 Students | 1 reviews |
6/10 Dakota Valley Upper Elementary - 04 Public • 4-5 | 232 Students | 1 reviews |
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

More real estate resources for Union County
New Listings in Union County
City Housing Markets
Nearby County Housing Markets
City Listings
Nearby County Listings
About us
Find us
Subsidiaries
Affiliated Business
Copyright: © 2025 Redfin. All rights reserved.
Updated September 2025: By searching, you agree to the Terms of Use, and Privacy Policy.
Do not sell or share my personal information.
REDFIN and all REDFIN variants, WALK SCORE, and the R logos, are trademarks of Redfin Corporation, registered or pending in the USPTO.
California DRE #01521930
Redfin is licensed to do business in New York as Redfin Real Estate. NY Standard Operating Procedures
New Mexico Real Estate Licenses
TREC: Info About Brokerage Services, Consumer Protection Notice
All mortgage lending products and information are provided by Rocket Mortgage, LLC | NMLS #3030; www.NMLSConsumerAccess.org. Licensed in 50 states. This site is not authorized by the New York State Department of Financial Services for mortgage solicitation or loan applications activities related to properties located in the State of New York.
Redfin Corporation is an affiliated business of Rocket Limited Partnership. Each company, and their subsidiaries, are separate legal entities operated and managed through its own management and governance structures.
If you are using a screen reader, or having trouble reading this website, please call Redfin Customer Support for help at 1-844-759-7732.
REDFIN IS COMMITTED TO AND ABIDES BY THE FAIR HOUSING ACT AND EQUAL OPPORTUNITY ACT. READ REDFIN'S FAIR HOUSING POLICY AND THE NEW YORK STATE FAIR HOUSING NOTICE.










United States
Canada