ZIP CodeStandard
57751
Keystone, SD
ZIP Code 57751 in Keystone, SD has a population of 717 and a median household income of $97,969. Explore Census demographics, housing, and a map.
Demographics
Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.
People
Total population
717
People
Median age
54.2
Housing
Total households
327
Income
Median household income
$97,969
Housing
Total housing units
477
Employment
Employment rate
64.1%
Education
Bachelor’s degree or higher
43%
Healthcare
Insured population
87.5%
ZIP details
Local time 23:34:15(CT)| Location | Keystone, SD |
|---|---|
| County | Pennington |
| Area code | |
| Timezone | Central Time (CT) |
| Coordinates | 43.8691347, -103.4269319 |
| Land area | 44.2 sq miles(114,537,448 m²) |
Map of ZIP Code 57751 — Keystone, SD
Nearby ZIP codes
ZIP codes near 57751.
Data Sources & Citations
The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:
- United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
- United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS