Housing in Keystone, SD

Home values, rent, ownership rates, and housing market data

Housing Market Snapshot

Source: Redfin — September 2025

Median Sale Price

$507,500

Median List Price

N/A

Price Per Sq Ft

$317

Days on Market

53

Active Inventory

N/A

Zillow Home Value

$615,208

ZHVI — January 2026

Price Trends

Source: Redfin
Sale Price ↓ 7.7%Dec 24 → Sep 25

Market Competitiveness

Source: Redfin

Sold Above List

0.0%

Sale-to-List Ratio

95.9%

Buyer's market

Sold Above Asking
0.0%

Market Activity

Source: Redfin

Homes Sold

2

Homes Sold ↑ 100.0%Dec 24 → Sep 25

Price Per Square Foot

Source: Redfin

Median Sale $/SF

$317

Sale $/SF ↑ 15.3%Dec 24 → Sep 25

Keystone vs Similar Cities

Source: Census ACS / Redfin (2023)

Compared to cities with under 10,000 residents. Keystone is highlighted.

Median Home Value

Median Rent

Median Price Per Sq Ft

Rent Burden

Census Housing Data

Source: U.S. Census Bureau ACS (2023)

Median Home Value

$188,800

Median Rent

$690

Total Housing Units

204

Vacancy Rate

32.4%

Owner Occupied

67.4%

Renter Occupied

32.6%

Median Property Tax

N/A

per year

Monthly Cost (w/ Mortgage)

$757

Housing Types

Single Family
48.0%
Multi-Family
10.3%
Mobile Home
41.7%

The current median sale price in Keystone, SD is $507,500 according to Redfin data. Homes spend a median of 53 days on the market. 0.0% of homes sold above asking price. The median price per square foot is $317. The median rent is $690 per month (Census ACS). About 67.4% of housing units are owner-occupied. The median year homes were built is 1978. There are 204 total housing units.