Watertown, SD Demographics

A map of Watertown's Population by Race

Watertown, South Dakota had a population of 22,655 in 2020. It was 90.4% White, 0.4% Black, 0.8% Asian, 2.8% Hispanic, 2.7% Native American/Other, and 2.8% Multiracial. This map presents the population of Watertown, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Of the 486 places in South Dakota, Watertown is the 5th most populous. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs).

Watertown's White Population

20,488 residents of Watertown identify as White, or 90.4%. This makes the White share of the population of Watertown slightly larger than the White share of the population of South Dakota (79.6% White). Of the 486 places in South Dakota, Watertown is ranked #231 in terms of White residents as a share of the population.

Watertown is more White than neighboring Waverly (81.8% White), Kranzburg (90.2% White), and Hayti (85.5% White). Watertown is less White than neighboring Castlewood (91.5% White), and Florence (94.4% White).

Watertown's Black Population

101 residents of Watertown identify as Black, or 0.4%. This makes the Black share of the population of Watertown roughly similar to the Black share of the population of South Dakota (2% Black). Of the 486 places in South Dakota, Watertown is ranked #101 in terms of Black residents as a share of the population.

Watertown is more Black than neighboring Waverly (0% Black), Castlewood (0.1% Black), Florence (0% Black), and Hayti (0% Black). Watertown is less Black than neighboring Kranzburg (0.6% Black).

Watertown's Asian Population

181 residents of Watertown identify as Asian, or 0.8%. This makes the Asian share of the population of Watertown roughly similar to the Asian share of the population of South Dakota (1.5% Asian). Of the 486 places in South Dakota, Watertown is ranked #63 in terms of Asian residents as a share of the population.

Watertown is more Asian than neighboring Castlewood (0% Asian), Florence (0.6% Asian), Kranzburg (0% Asian), and Hayti (0% Asian). Watertown is less Asian than neighboring Waverly (4.5% Asian).

Watertown's Hispanic Population

627 residents of Watertown identify as Hispanic, or 2.8%. This makes the Hispanic share of the population of Watertown roughly similar to the Hispanic share of the population of South Dakota (4.4% Hispanic). Of the 486 places in South Dakota, Watertown is ranked #195 in terms of Hispanic residents as a share of the population.

Watertown is more Hispanic than neighboring Florence (0.6% Hispanic). Watertown is less Hispanic than neighboring Waverly (4.5% Hispanic), Castlewood (4% Hispanic), Kranzburg (6.1% Hispanic), and Hayti (12.5% Hispanic).

Watertown's Native American/Other Population

618 residents of Watertown identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 2.7%. This makes the Native American/Other share of the population of Watertown slightly less than the Native American/Other share of the population of South Dakota (8.7% Native American/Other). Of the 486 places in South Dakota, Watertown is ranked #176 in terms of Native American/Other residents as a share of the population.

Watertown is more Native American/Other than neighboring Waverly (0% Native American/Other), Castlewood (1.9% Native American/Other), Kranzburg (1.2% Native American/Other), and Hayti (0.5% Native American/Other). Watertown is less Native American/Other than neighboring Florence (3.3% Native American/Other).

Watertown's Multiracial Population

640 residents of Watertown identify as Multiracial, or 2.8%. This makes the Multiracial share of the population of Watertown roughly similar to the Multiracial share of the population of South Dakota (3.9% Multiracial). Of the 486 places in South Dakota, Watertown is ranked #237 in terms of Multiracial residents as a share of the population.

Watertown is more Multiracial than neighboring Castlewood (2.4% Multiracial), Florence (1.2% Multiracial), Kranzburg (1.8% Multiracial), and Hayti (1.5% Multiracial). Watertown is less Multiracial than neighboring Waverly (9.1% Multiracial).

Source: 2020 Census State Redistricting Data and Census TIGER/Line Shapefiles.