Real Estate Data API

57751 Keystone

29 active listings out of 621 total properties we track in ZIP 57751 (Keystone, SD) — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.

Get this data → API docs
Active
29
Median
$495K
±0%
Sold Sep
1
±0%
Tracked
621
Zoomed out

While you're here, take in the bigger picture — maps below show South Dakota (statewide), not just 57751. Same company, same dataset, different resolution.

Get this data →
Key Numbers
Tracked
621
Active
29
Median list
$495K
Sales (12mo)
7
Get this data →
Key Numbers
Tracked
621
Active
29
Median list
$495K
Sales (12mo)
7
Get this data →
Key Numbers
Tracked
621
Active
29
Median list
$495K
Sales (12mo)
7
Get this data →
Key Numbers
Tracked
621
Active
29
Median list
$495K
Sales (12mo)
7
Get this data →
Key Numbers
Tracked
621
Active
29
Median list
$495K
Sales (12mo)
7

Inventory breakdown

Distribution of the 29 currently-active listings in ZIP 57751. Full dataset covers 621 properties — listings, off-market homes, rentals, and full history.

Active by price range
Under $300K 7 (24.1%)
$300K–$500K 8 (27.6%)
$500K–$750K 6 (20.7%)
$750K–$1M 2 (6.9%)
$1M–$2M 4 (13.8%)
$2M+ 2 (6.9%)
Active by bedroom count
Studio/1 bd 4
2 bd 5
3 bd 6
4 bd 3
5+ bd 2
Active by property type
Single Family 19 (65.5%)
Lot 9 (31%)
Townhouse 1 (3.4%)
For Developers

Get Keystone 57751 data in your app

curl
request 
GET https://api.straply.com/v1/markets/zip/57751
Authorization: Bearer $STRAPLY_KEY
200 OK response 
{
  "zip": "57751",
  "total_tracked": 621,
  "active": 29,
  "median_list": 494900
}
Get an API key Read the docs

Nearby ZIP codes

Other South Dakota ZIPs within a short drive of 57751.

57702
→
Rapid City 57702
8.9 mi away 773 active
57744
→
Hermosa 57744
9 mi away 81 active
57745
→
Hill City 57745
12.5 mi away 105 active
57730
→
Custer 57730
15.5 mi away 261 active
57701
→
Rapid City 57701
16 mi away 919 active
57738
→
Fairburn 57738
16.5 mi away 13 active
57703
→
Rapid City 57703
17.1 mi away 724 active
57718
→
Black Hawk 57718
20 mi away 100 active
Looking for more? Explore Keystone

ZIP 57751 · Keystone, SD real estate: market summary

As of November 2026, Straply tracks 621 homes in ZIP 57751 (Keystone, SD), with 29 active for sale at a median list price of $494,900 (~$289/sq ft). Notably, most homes were built in the 2000s.

Median list price
$494,900
Median $/sq ft
$289
Active listings
29
Median sale price
$46,000
Properties tracked
621

Frequently asked: ZIP 57751 · Keystone, SD real estate

What is the median home price in ZIP 57751?

The median list price in ZIP 57751 (Keystone, SD) is $494,900 (about $289 per square foot), based on 29 active listings tracked by Straply as of November 2026.

What price range are homes in ZIP 57751?

Active listings in ZIP 57751 (Keystone, SD) concentrate in: 28% $300k–$500k and 24% under $300k.

How many homes are for sale in ZIP 57751?

Straply is tracking 29 active listings in ZIP 57751 (Keystone, SD) out of 621 properties on record as of November 2026.

How old are the homes in ZIP 57751?

Most homes in ZIP 57751 (Keystone, SD) were built in the 2000s. About 64% were built after 1980, while 14% predate 1940. The newest tracked home dates to 2025.

What types of homes are in ZIP 57751?

ZIP 57751 (Keystone, SD) is mostly single-family homes (66% of listings). Also common: lots / land 31%.

How many bedrooms do homes in ZIP 57751 typically have?

The most common size in ZIP 57751 (Keystone, SD) is 3 bd.

What areas are near ZIP 57751?

Nearby markets Straply also tracks include Rapid City 57702, Hermosa 57744, Hill City 57745, Custer 57730.

Data as of November 2026. Source: Straply. For address-level history and programmatic access, use the Straply API.