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ZIP Code 57751
Keystone, SD, Pennington County
Population
893
Land area
44.2sq mi
People per sq mi
20
City
Keystone
ZIP 57751 and nearby ZIP codes
ZIP 57751 at a glance
- ZIP 57751 (Keystone) is 69% denser than South Dakota as a whole.
- Households here earn a median of $97,969 a year, 30% more than the South Dakota figure of $75,081.
- A typical owner-occupied home is valued at $473,500 (84% above South Dakota) and median rent is $600 a month.
Local data for ZIP 57751
Counts from official public data
Housing and community stats
ZIP 57751, American Community Survey 2020-2024
Median household income
$97,969
Poverty rate
4.6%
Median home value
$473,500
Prices -1.0% in a year
Median rent
$600/mo
Homeownership
85.6%
Bachelor's or higher
43.0%
Median age
54.2
Average commute
34.2 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
72
ZIP Business Patterns 2023
Employees
304
$18.7M annual payroll
PPP loans
$2.5M
65 loans
Campaign donations
$6,611
17% D, 15% R, 2026 cycle
Environment and hazard risk
ZIP 57751, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: wildfire
Storm events since 1996
3,274
Countywide, mostly hail
Flood insurance policies
253
0.6% of homes, county
July high / Jan low
79° / 19°F
24.1 inches of rain a year
Health statistics
Share of adults in ZIP 57751, CDC PLACES estimates
Obesity
32.3%
U.S. 33.3% -1.0 pts
Diabetes
13.4%
U.S. 12.1% +1.3 pts
Smoking
12.4%
U.S. 12.8% about the same
Uninsured (18-64)
6.5%
U.S. 11.1% -4.6 pts
Frequently asked questions
- What city is ZIP code 57751?
- ZIP code 57751 is in Keystone, SD (Pennington County).
- What county is ZIP code 57751 in?
- ZIP code 57751 is mostly in Pennington County, South Dakota.
- How many people live in ZIP code 57751?
- About 893 people live in the 57751 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.
Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.