Keystone SD
27 active listings out of 617 total properties we track across 7 Keystone ZIPs — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.
While you're here, take in the bigger picture — maps below show South Dakota (statewide), not just Keystone. Same company, same dataset, different resolution.
Inventory breakdown
Distribution of the 27 currently-active listings in Keystone, SD. Full dataset covers 617 properties — listings, off-market homes, rentals, and full history.
ZIP codes in Keystone
Drill into any ZIP for hex-level breakdowns.
Nearby cities
Other South Dakota cities within driving distance.
Get Keystone, SD data in your app
GET https://api.straply.com/v1/markets/city/keystone-sd
Authorization: Bearer $STRAPLY_KEY{
"city": "keystone-sd",
"total_tracked": 617,
"active": 27,
"median_list": 525000
}Keystone, SD real estate: market summary
As of November 2026, Straply tracks 617 homes in Keystone, SD, with 27 active for sale at a median list price of $525,000 (~$339/sq ft). Notably, most homes were built in the 2000s.
- Median list price
- $525,000
- Median $/sq ft
- $339
- Active listings
- 27
- Median sale price
- $46,000
- Properties tracked
- 617
Frequently asked: Keystone, SD real estate
What is the median home price in Keystone?
The median list price in Keystone, SD is $525,000 (about $339 per square foot), based on 27 active listings tracked by Straply as of November 2026.
What price range are homes in Keystone?
Active listings in Keystone, SD concentrate in: 30% $300k–$500k and 26% $500k–$750k.
How many homes are for sale in Keystone?
Straply is tracking 27 active listings in Keystone, SD out of 617 properties on record as of November 2026.
How old are the homes in Keystone?
Most homes in Keystone, SD were built in the 2000s. About 65% were built after 1980, while 14% predate 1940. The newest tracked home dates to 2025.
What types of homes are in Keystone?
Keystone, SD is mostly single-family homes (70% of listings). Also common: lots / land 26%.
How many bedrooms do homes in Keystone typically have?
The most common size in Keystone, SD is Studio/1 bd.
What are the most active ZIP codes in Keystone?
The ZIP codes with the most active listings in Keystone, SD are 57751, 57744.
What areas are near Keystone?
Nearby markets Straply also tracks include Hermosa, Hill City, Rapid City, Custer.
Data as of November 2026. Source: Straply. For address-level history and programmatic access, use the Straply API.