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Custer County, SD
5 cities and towns and 4 ZIP codes in Custer County, South Dakota.
Population
8,892
Land area
1,557sq mi
People per sq mi
6
ZIP codes
4
Cities and towns in Custer County
Custer County at a glance
- Custer County is 52% less dense than South Dakota as a whole.
- The median household income is $84,112, 12% above the South Dakota median of $75,081.
- A typical owner-occupied home is valued at $372,100 (45% above South Dakota) and median rent is $1,112 a month.
- Its largest cities are Custer (2,341), Hermosa (353) and Pringle (206).
Local data for Custer County, SD
Counts from official public data
Housing and community stats
Custer County, SD, American Community Survey 2020-2024
Median household income
$84,112
Poverty rate
9.0%
Median home value
$372,100
Prices +8.5% in a year
Median rent
$1,112/mo
Homeownership
85.6%
Bachelor's or higher
31.6%
Median age
57.6
Average commute
29.5 min
Largest reported origins and ancestries: German Americans (2,821), Irish Americans (1,498), Norwegian Americans (591).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
2.2%
Aug 2026, +0.1 pts in a year
Average annual pay
$50,345
2,690 jobs, 2025
Income per person
$72,654
BEA, 2024
Federal spending
$117M
FY 2026, $14,123 per person
PPP loans
$11.58M
420 loans, 1,552 jobs reported
Campaign donations
$64.4K
Itemized, 2026 cycle
How people get to work
Custer County, SD, workers 16 and older. American Community Survey 5-year estimates
- Drove alone74.0%
- Carpooled9.2%
- Public transit0.0%
- Walked2.8%
- Bicycle0.6%
- Taxi, ride-hailing, motorcycle or other1.4%
- Worked from home12.0%
Average one-way commute: 29.5 minutes for people who do not work from home.
Environment and hazard risk
Custer County, SD, from FEMA, NOAA and EPA
Natural hazard risk
Very Low
Top: wildfire
Storm events since 1996
1,618
Most often hail
Flood insurance policies
44
0.8% of homes, county
July high / Jan low
85° / 15°F
21.2 inches of rain a year
Hazards, floods and storm historyCheck a flood zone26 historic places
Health statistics
Share of adults in Custer County, SD, CDC PLACES estimates
Obesity
33.9%
U.S. 33.3% +0.6 pts
Diabetes
13.9%
U.S. 12.1% +1.8 pts
Smoking
13.9%
U.S. 12.8% +1.1 pts
Uninsured (18-64)
7.0%
U.S. 11.1% -4.1 pts
Cities, towns and ZIP codes in Custer County
Population shown
Frequently asked questions
- What is the largest city in Custer County, SD?
- Custer is the largest city or town in Custer County, with about 2,341 residents.
- How many ZIP codes are in Custer County?
- Custer County includes 4 ZIP Code Tabulation Areas, including 57730, 57738, 57744, 57773.
- What is the population of Custer County, SD?
- About 8,892 people live in Custer County, based on American Community Survey 5-year estimates.
- What counties border Custer County?
- Custer County borders Pennington County, Oglala Lakota County, Fall River County, Weston County, WY, Niobrara County, WY.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023