Home values, rents and more in Keystone, SD
September 2026 figures from Zillow and the U.S. Census Bureau · updated 2026-11-07
Open Keystone in ProMap- Under $470k
- $470k–$480k
- $480k–$500k
- $500k–$520k
- $520k+
- No data
How Keystone compares
The typical home in Keystone, SD is worth about $621,000, according to the Zillow Home Value Index for September 2026. Home values in Keystone are 1.7 times the typical value in the Rapid City metro area ($370,000) and 1.7 times the U.S. typical value ($366,000).
Over the past year, home values in Keystone rose 0.6%, compared with +2.1% in the Rapid City metro area and +1.2% nationally.
The median household income is $64,702, against $75,255 in the Rapid City metro area and $80,734 in the U.S. (Census Bureau, American Community Survey 2020–24).
About 336 people live in Keystone (American Community Survey 2020–24).
Keystone has the highest typical home value of the 12 cities in the Rapid City metro area and the highest of 129 in South Dakota with Zillow figures.
Part of: Pennington County, SD · Rapid City metro area · South Dakota
More for Keystone in ProMap Plus
These measures are on the map for subscribers. Open ProMap to see them for Keystone and every other place.
- 5- and 10-year price changes
- Days on market and months of supply
- Price cuts and sale-to-list ratio
- Price-to-income and monthly cost to buy
- Crime rates
- Homeowners insurance premiums
- Commute time to downtown
- Flood, wildfire and natural hazard risk
- Property-tax rate
- 2024 presidential vote
- Age, education and household make-up
- Amenities and transit nearby
Nearby cities
ZIP codes in Keystone, SD
Sources
Home values: Zillow Home Value Index (ZHVI), all homes, middle tier, smoothed and seasonally adjusted, September 2026. Rents: Zillow Observed Rent Index (ZORI), seasonally adjusted. Population: Census population estimates (July 2025) for states, metros and counties; ACS 2020–24 for cities and ZIP codes. Income: U.S. Census Bureau, ACS 2020–24 5-year estimates. Boundaries: U.S. Census Bureau cartographic boundary files. Compiled by Home Economics.
"Typical" is Zillow's middle-tier value (homes between the 35th and 65th percentiles), not a median sale price. Changes are over the 12 months to September 2026.