Skip to content

South Dakota

66 counties, 485 cities and towns, and 376 ZIP codes.

Population

907,428

Land area

75,808sq mi

People per sq mi

12

Cities and towns

485

Largest cities in South Dakota

South Dakota at a glance

  • The median household income is $75,081, 7% below the U.S. median of $80,734.
  • A typical owner-occupied home is valued at $257,400 (23% below the U.S.) and median rent is $946 a month.
  • Its largest cities are Sioux Falls (201,469), Rapid City (77,946) and Aberdeen (28,189).

Local data for South Dakota

Counts from official public data

Housing and community stats

South Dakota, American Community Survey 2020-2024

Full profile

Median household income

$75,081

Poverty rate

11.9%

Median home value

$257,400

Prices +1.1% in a year

Median rent

$946/mo

Homeownership

68.6%

Bachelor's or higher

31.9%

Median age

38.0

Average commute

17.8 min

Largest reported origins and ancestries: German Americans (300,492), Norwegian Americans (94,707), Irish Americans (90,144).

Home values and rentsIncome, education and commute

Economy and federal money

Jobs, income, federal spending and pandemic loans

Details

Unemployment rate

2.0%

Sep 2026, -0.1 pts in a year

Average annual pay

$60,575

460,392 jobs, 2025

Income per person

$75,699

BEA, 2024

Federal spending

$9.52B

FY 2026, $10,738 per person

PPP loans

$2.73B

64,079 loans, 313,889 jobs reported

Campaign donations

$13.29M

Itemized, 2026 cycle

EconomyFederal spendingPPP loansCampaign finance

Environment and hazard risk

South Dakota, from FEMA, NOAA and EPA

Full report

High-risk counties

0

of 66 rated by FEMA

Storm events since 1996

51,014

131 deaths

Flood insurance policies

2,011

$62.29M paid since 1978

Superfund sites

4

113 toxic release facilities

Hazards, floods and storm historyCheck a flood zone948 historic places

Health statistics

Share of adults in South Dakota, CDC PLACES estimates

All 40 measures

Obesity

36.0%

U.S. 33.3% +2.7 pts

Diabetes

11.7%

U.S. 12.1% about the same

Smoking

15.4%

U.S. 12.8% +2.6 pts

Uninsured (18-64)

8.9%

U.S. 11.1% -2.2 pts

Largest cities in South Dakota

NamePopulationLand area (sq mi)
Sioux Falls201,46983.6
Rapid City77,94656
Aberdeen28,18916.6
Brookings23,94814
Watertown23,04418.4
Mitchell15,64911.5
Yankton15,5408.7
Huron14,3859.7
Pierre13,94813
Spearfish12,93017.3
Box Elder12,90214.8
Vermillion11,8784.8
Brandon10,9966.1
Harrisburg8,5194.8
Sturgis7,0866.6
Rapid Valley6,9756.4
Tea6,7863.8
Madison6,0944.6
Belle Fourche5,8049
Dakota Dunes3,9362.5
Dell Rapids3,9052.3
Hot Springs3,5484.3
Milbank3,5252.8
Hartford3,4783.2
North Sioux City3,0453.3

Counties, cities and towns in South Dakota

Population shown. Largest 400 of 485 cities and towns listed

Frequently asked questions

How many counties are in South Dakota?
South Dakota has 66 counties, according to the U.S. Census Bureau.
What is the largest city in South Dakota?
Sioux Falls is the largest city in South Dakota, with a population of about 201,469.
What is the population of South Dakota?
South Dakota has about 907,428 residents, based on the Census Bureau's American Community Survey 5-year estimates.
How many ZIP codes are in South Dakota?
There are 376 ZIP Code Tabulation Areas in South Dakota.

Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey)