Jefferson, WI Demographics

A map of Jefferson's Population by Race

Jefferson, Wisconsin has an estimated population of 7,732, a less than 1% change from the 7,793 recorded in the 2020 Census. The population is 79.5% White, 14.6% Hispanic, 4.0% Multiracial, 1.2% Black, 0.6% Native American/Other, and 0.1% Asian. This demographic dot map shows the population of Jefferson, with one dot drawn for each person counted by the Census, color-coded by race.

Jefferson has become more racially diverse since the 2020 Census. It is 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 Jefferson, that probability was 31.1% in 2020 and 34.4% in the most recent ACS estimates.

Jefferson is ranked the 126th 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). Jefferson was ranked the 120th most populous place in the 2020 Census.

Jefferson's White Population

6,149 residents of Jefferson, or 79.5% of the population, identify as White. The share of White residents in Jefferson is comparable to the share in Wisconsin overall, where 78.6% of the population is White. Jefferson ranks 687th statewide in terms of White residents as a share of the population, out of 808 places.

Since the 2020 Census, Jefferson's White population has declined by an estimated 3.8%. White residents' share of Jefferson's population has decreased from 82.1% to 79.5%.

Jefferson is less White than neighboring Johnson Creek (85.4% White), Fort Atkinson (82.9% White), Helenville (100% White), Lake Mills (87.9% White), and Hebron (95.6% White).

Jefferson's Black Population

93 residents of Jefferson, or 1.2% of the population, identify as Black. The share of Black residents in Jefferson is slightly lower than in Wisconsin overall, where 5.9% of the population is Black. Jefferson ranks 144th statewide in terms of Black residents as a share of the population, out of 808 places.

Since the 2020 Census, Jefferson's Black population has declined by an estimated 5.1%. Black residents' share of Jefferson's population has remained roughly unchanged at 1.2%.

Jefferson is more Black than neighboring Fort Atkinson (0.4% Black), Helenville (0% Black), Lake Mills (1% Black), and Hebron (0% Black). Jefferson is less Black than neighboring Johnson Creek (1.7% Black).

Jefferson's Asian Population

6 residents of Jefferson, or 0.1% of the population, identify as Asian. The share of Asian residents in Jefferson is slightly lower than in Wisconsin overall, where 2.9% of the population is Asian. Jefferson ranks 431st statewide in terms of Asian residents as a share of the population, out of 808 places.

Since the 2020 Census, Jefferson's Asian population has declined by an estimated 81.3%. Asian residents' share of Jefferson's population has remained roughly unchanged at 0.1%.

Jefferson is more Asian than neighboring Helenville (0% Asian), and Hebron (0% Asian). Jefferson is less Asian than neighboring Johnson Creek (4.6% Asian), Fort Atkinson (0.5% Asian), and Lake Mills (0.5% Asian).

Jefferson's Hispanic Population

1,128 residents of Jefferson, or 14.6% of the population, identify as Hispanic. The share of Hispanic residents in Jefferson is higher than in Wisconsin overall, where 8% of the population is Hispanic. Jefferson ranks 63rd statewide in terms of Hispanic residents as a share of the population, out of 808 places.

Since the 2020 Census, Jefferson's Hispanic population has grown by an estimated 26.0%. Hispanic residents' share of Jefferson's population has increased from 11.5% to 14.6%.

Jefferson is more Hispanic than neighboring Johnson Creek (2.4% Hispanic), Fort Atkinson (13.8% Hispanic), Helenville (0% Hispanic), Lake Mills (8.6% Hispanic), and Hebron (4.4% Hispanic).

Jefferson's Native American/Other Population

48 residents of Jefferson, 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 Jefferson is comparable to the share in Wisconsin overall, where 0.9% of the population is Native American/Other. Jefferson ranks 501st statewide in terms of Native American/Other residents as a share of the population, out of 808 places.

Since the 2020 Census, Jefferson's Native American/Other population has grown by an estimated 33.3%. Native American/Other residents' share of Jefferson's population has remained roughly unchanged at 0.6%.

Jefferson is more Native American/Other than neighboring Johnson Creek (0% Native American/Other), Fort Atkinson (0.1% Native American/Other), Helenville (0% Native American/Other), Lake Mills (0% Native American/Other), and Hebron (0% Native American/Other).

Jefferson's Multiracial Population

308 residents of Jefferson, or 4.0% of the population, identify as Multiracial. The share of Multiracial residents in Jefferson is comparable to the share in Wisconsin overall, where 3.7% of the population is Multiracial. Jefferson ranks 132nd statewide in terms of Multiracial residents as a share of the population, out of 808 places.

Since the 2020 Census, Jefferson's Multiracial population has declined by an estimated 8.6%. Multiracial residents' share of Jefferson's population has remained roughly unchanged at 4.0%.

Jefferson is more Multiracial than neighboring Fort Atkinson (2.3% Multiracial), Helenville (0% Multiracial), Lake Mills (1.9% Multiracial), and Hebron (0% Multiracial). Jefferson 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.