Sisseton Population

2010–2026

2,402

2026 projection

3.1% since 2020 (decrease)

05001K1.5K2K2.5K201020122014201620182020202220242026

Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Sisseton. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20262,402-110.46%
20252,413-150.62%
20242,428+170.71%
20232,411+50.21%
20222,406-271.11%
20212,433-461.86%
20202,479-190.76%
20192,498+60.24%
20182,492+180.73%
20172,474+140.57%

Showing 10 of 17 years.

The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.

Growth since 2020, compared

Sisseton has a population change lower than Roberts County, South Dakota, and the U.S.

  • South Dakota+5.3%
  • United States+3.1%
  • Roberts County−0.1%
  • Sisseton−2.3%

Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.

Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.

Sisseton Demographics

34.2median age

Median age

Female36 yrs
Male30.6 yrs

Adults

1,844
535 seniors (65+) · 29% of adults1,309 other adults

Sex

Female 52.7% · 1,408Male 47.3% · 1,262

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 27 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Sisseton Income

$48,875median household income

Median household income

$48,875

Half of households earn more, half earn less

Median earnings

$40,417

Typical yearly pay for a worker 25 or older.

Poverty rate

18.8%

About 1 in 5 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Sisseton Marital Status

30% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married30%33%26%
Never married44%53%34%
Divorced18%11%25%
Widowed7%2%12%
Separated1%<1%2%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201