Watertown, WI Demographics

A map of Watertown's Population by Race

Watertown, Wisconsin has an estimated population of 22,774, a less than 1% change from the 22,926 recorded in the 2020 Census. The population is 85.4% White, 9.5% Hispanic, 3.9% Multiracial, 0.6% Native American/Other, 0.4% Black, and 0.2% Asian. This demographic dot map shows the population of Watertown, with one dot drawn for each person counted by the Census, color-coded by race.

Watertown has become slightly less racially diverse since the 2020 Census. It is considerably less diverse than Wisconsin overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Watertown, that probability was 26.9% in 2020 and 26.0% in the most recent ACS estimates.

Watertown is ranked the 36th most populous place in Wisconsin, out of 808 places. 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 was ranked the 36th most populous place in the 2020 Census.

Watertown's White Population

19,453 residents of Watertown, or 85.4% of the population, identify as White. The share of White residents in Watertown is higher than in Wisconsin overall, where 78.6% of the population is White. Watertown ranks 646th statewide in terms of White residents as a share of the population, out of 808 places.

Since the 2020 Census, Watertown's White population has remained roughly the same. White residents' share of Watertown's population has increased from 84.9% to 85.4%.

Watertown is more White than neighboring Clyman (82.5% White), and Reeseville (81.8% White). Watertown is less White than neighboring Lebanon (95.3% White), and Ixonia (95.1% White).

Watertown's Black Population

95 residents of Watertown, or 0.4% of the population, identify as Black. The share of Black residents in Watertown is lower than in Wisconsin overall, where 5.9% of the population is Black. Watertown ranks 161st statewide in terms of Black residents as a share of the population, out of 808 places.

Since the 2020 Census, Watertown's Black population has declined by an estimated 64.6%. Black residents' share of Watertown's population has decreased from 1.2% to 0.4%.

Watertown is more Black than neighboring Lebanon (0% Black), and Clyman (0% Black). Watertown is less Black than neighboring Johnson Creek (1.7% Black), Ixonia (2.2% Black), and Reeseville (1.5% Black).

Watertown's Asian Population

37 residents of Watertown, or 0.2% of the population, identify as Asian. The share of Asian residents in Watertown is slightly lower than in Wisconsin overall, where 2.9% of the population is Asian. Watertown ranks 277th statewide in terms of Asian residents as a share of the population, out of 808 places.

Since the 2020 Census, Watertown's Asian population has declined by an estimated 78.7%. Asian residents' share of Watertown's population has decreased from 0.8% to 0.2%.

Watertown is more Asian than neighboring Lebanon (0% Asian), and Reeseville (0% Asian). Watertown is less Asian than neighboring Johnson Creek (4.6% Asian), Clyman (2.3% Asian), and Ixonia (0.6% Asian).

Watertown's Hispanic Population

2,153 residents of Watertown, or 9.5% of the population, identify as Hispanic. The share of Hispanic residents in Watertown is comparable to the share in Wisconsin overall, where 8% of the population is Hispanic. Watertown ranks 85th statewide in terms of Hispanic residents as a share of the population, out of 808 places.

Since the 2020 Census, Watertown's Hispanic population has declined by an estimated 2.0%. Hispanic residents' share of Watertown's population has remained roughly unchanged at 9.5%.

Watertown is more Hispanic than neighboring Johnson Creek (2.4% Hispanic), Lebanon (4.7% Hispanic), and Ixonia (1.3% Hispanic). Watertown is less Hispanic than neighboring Clyman (13% Hispanic), and Reeseville (15.4% Hispanic).

Watertown's Native American/Other Population

146 residents of Watertown, or 0.6% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Watertown is comparable to the share in Wisconsin overall, where 0.9% of the population is Native American/Other. Watertown ranks 439th statewide in terms of Native American/Other residents as a share of the population, out of 808 places.

Since the 2020 Census, Watertown's Native American/Other population has grown by an estimated 17.7%. Native American/Other residents' share of Watertown's population has remained roughly unchanged at 0.6%.

Watertown is more Native American/Other than neighboring Johnson Creek (0% Native American/Other), Lebanon (0% Native American/Other), Clyman (0% Native American/Other), and Ixonia (0% Native American/Other).

Watertown's Multiracial Population

890 residents of Watertown, or 3.9% of the population, identify as Multiracial. The share of Multiracial residents in Watertown is comparable to the share in Wisconsin overall, where 3.7% of the population is Multiracial. Watertown ranks 431st statewide in terms of Multiracial residents as a share of the population, out of 808 places.

Since the 2020 Census, Watertown's Multiracial population has grown by an estimated 27.9%. Multiracial residents' share of Watertown's population has increased from 3.0% to 3.9%.

Watertown is more Multiracial than neighboring Lebanon (0% Multiracial), Clyman (2.3% Multiracial), Ixonia (0.8% Multiracial), and Reeseville (0.8% Multiracial). Watertown is less Multiracial than neighboring Johnson Creek (5.9% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.