County ProfileSD
Sully County
Population: 1,446 · 2 ZIP codes
Demographics
Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.
People
Total population
1,446
People
Median age
46.9
Housing
Total households
637
Income
Median household income
$72,578
Housing
Total housing units
934
Employment
Employment rate
69.3%
Education
Bachelor’s degree or higher
24.1%
Healthcare
Insured population
93.4%
County details
Local time 01:13:58(CT)| Name | Sully |
|---|---|
| Total ZIP codes | 2total |
| ZIP codes (by type) | 2 Standard |
| Area code | 605 |
| Timezone | Central Time (CT) |
| Coordinates | 44.7223248, -100.1313985 |
| Land area | 1,006.7 sq miles(2,607.4 km²) |
Map of Sully county, South Dakota with ZIP codes
Cities and Communities in Sully County
Compare the largest cities in Sully County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.
— Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.
ZIP Codes in Sully County
Review the most populated postal areas across Sully County. Use the ranking below to compare resident density and demographic scales between the county's major zones.
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