Custer County

Custer County has 8,892 residents across 4 ZIP codes with their own report. Median household income is $84,112, 12% above the South Dakota figure. The typical owner-occupied home is valued at $372,100, and 32% of adults 25 and over hold a bachelor’s degree or higher.

County · ACS 2020–2024 · Updated October 24, 2026

8,892residentsACS 2020–2024

$84,112median household incomeSouth Dakota: $75K

$372,100median home valueowner-occupied homes

88%of households have broadbandhome internet subscription

Custer County in South DakotaZIP codes in Custer County highlighted; the rest of South Dakota in grey

Map of South Dakota with Custer County highlighted

Sources: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates · U.S. Census Bureau, 2024 Gazetteer and 2020 ZCTA relationship files

All 4 ZIP codes.

Colour shows where each zip code sits among the others in the table, from lowest to highest.

ZIP code	Residents	Household income	Home value	Owners	Bachelor's+	Broadband	Commute
57730	5,596	$83K	$379K	80%	34%	92%	25 min
57738	356	$52K	$-666667K	96%	1%	54%	36 min
57744	2,421	$106K	$387K	91%	39%	78%	33 min
57773	206	$-666667K	$-666667K	91%	9%	95%	25 min

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates

People.

8,892 residents in 4,451 households, next to the South Dakota figure.

14%

under 18

11%

aged 18–34

34%

aged 65 and over

27%

of households are people living alone

61%

of households are married couples

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates

Homes.

5,291 housing units; the median owner-occupied home is valued at $372,100 (±$47,295).

86%

of households own their home

75%

of homes are detached single-family houses

are in buildings with 5 or more units

16%

are mobile homes

16%

of housing units are vacant

$1,112

median gross rent a month

When homes were built

2020 or later3%

2010–201916%

2000–200924%

1990–199911%

1980–19897%

1970–197913%

1960–19696%

1950–19594%

1940–19495%

1939 or earlier11%

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates

Income and work.

Household income and work, in 2024 dollars; median household income ±$3,932.

$84,112

median household income

9.0%

of people live below the poverty line

2.3%

unemployment rate

32%

of adults 25+ hold a bachelor’s degree or higher

The poverty rate uses the federal poverty thresholds, which vary with family size. It says nothing on its own about what a neighborhood is like to live in.

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates

Getting around.

How workers aged 16 and over get to work, and how long it takes.

30 min

average commute to work

24%

of commuters travel 45 minutes or more

83%

of workers drive or carpool

take public transportation

walk or bike

12%

work from home

of households have no car

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates

Internet.

Home internet subscriptions.

88%

of households have a broadband subscription

11%

have no internet access at home

American Community Survey figures are estimates from a rolling sample, averaged over 2020–2024. Each comes with a margin of error, which is wider in places with fewer people.

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates