Demographics in Watertown, SD
Population, age, race, ethnicity, and household statistics — 2023 ACS Data
Where is Watertown?
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Population
Source: U.S. Census Bureau ACS (2023)Total Population
22,859
Male
11,660
51.0%
Female
11,199
49.0%
Median Age
39.4
Race & Ethnicity
Source: U.S. Census Bureau ACS (2023)White90.3%
Black1.2%
Hispanic3.4%
Asian0.6%
Two or More4.7%
Other0.9%
Education & Household
Source: U.S. Census Bureau ACS (2023)Bachelor's or Higher
14.5%
High School or Higher
39.9%
Foreign Born
1.3%
Veterans
6.3%
Married
38.4%
Avg Household Size
2.2
Marital Status by Age
Source: U.S. Census Bureau ACS (2023)Watertown, SD has a population of 22,859 with a median age of 39.4. The racial makeup is 90.3% White, 3.4% Hispanic, 1.2% Black, 0.6% Asian. About 14.5% of residents hold a bachelor's degree or higher. The foreign-born population is 1.3%.