Rochester, WI Demographics

A map of Rochester's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	3,589	3,490	95.4%	92.2%
Multiracial	97	93	2.6%	2.5%
Hispanic	75	149	2.0%	3.9%
Black	3	14	0.1%	0.4%
Asian	0	27	0.0%	0.7%
Native American/Other	0	12	0.0%	0.3%

Rochester, Wisconsin has an estimated population of 3,764, a less than 1% change from the 3,785 recorded in the 2020 Census. The population is 95.4% White, 2.6% Multiracial, 2.0% Hispanic, 0.1% Black, 0.0% Asian, and 0.0% Native American/Other. This demographic dot map shows the population of Rochester, with one dot drawn for each person counted by the Census, color-coded by race.

Rochester has become considerably 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 Rochester, that probability was 14.8% in 2020 and 9.0% in the most recent ACS estimates.

Rochester is ranked the 187th 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). Rochester was ranked the 182nd most populous place in the 2020 Census.

Rochester's White Population

3,589 residents of Rochester, or 95.4% of the population, identify as White. The share of White residents in Rochester is significantly higher than in Wisconsin overall, where 78.6% of the population is White. Rochester ranks 326th statewide in terms of White residents as a share of the population, out of 808 places.

Since the 2020 Census, Rochester's White population has grown by an estimated 2.8%. White residents' share of Rochester's population has increased from 92.2% to 95.4%.

Rochester is more White than neighboring Waterford (88.2% White), Burlington (84.6% White), Tichigan (91% White), and Bohners Lake (91.6% White). Rochester is less White than neighboring Browns Lake (100% White).

Rochester's Black Population

3 residents of Rochester, or 0.1% of the population, identify as Black. The share of Black residents in Rochester is lower than in Wisconsin overall, where 5.9% of the population is Black. Rochester ranks 452nd statewide in terms of Black residents as a share of the population, out of 808 places.

Since the 2020 Census, Rochester's Black population has declined by an estimated 78.6%. Black residents' share of Rochester's population has remained roughly unchanged at 0.1%.

Rochester is more Black than neighboring Browns Lake (0% Black), and Bohners Lake (0% Black). Rochester is less Black than neighboring Waterford (1.3% Black), Burlington (1.5% Black), and Tichigan (0.4% Black).

Rochester's Asian Population

0 residents of Rochester, or 0.0% of the population, identify as Asian. The share of Asian residents in Rochester is slightly lower than in Wisconsin overall, where 2.9% of the population is Asian. Rochester ranks 290th statewide in terms of Asian residents as a share of the population, out of 808 places.

Since the 2020 Census, Rochester's Asian population has declined by an estimated 100.0%. Asian residents' share of Rochester's population has decreased from 0.7% to 0.0%.

Rochester is less Asian than neighboring Burlington (2.2% Asian), and Tichigan (2% Asian).

Rochester's Hispanic Population

75 residents of Rochester, or 2.0% of the population, identify as Hispanic. The share of Hispanic residents in Rochester is lower than in Wisconsin overall, where 8% of the population is Hispanic. Rochester ranks 301st statewide in terms of Hispanic residents as a share of the population, out of 808 places.

Since the 2020 Census, Rochester's Hispanic population has declined by an estimated 49.7%. Hispanic residents' share of Rochester's population has decreased from 3.9% to 2.0%.

Rochester is more Hispanic than neighboring Browns Lake (0% Hispanic), and Bohners Lake (0.7% Hispanic). Rochester is less Hispanic than neighboring Waterford (3.8% Hispanic), Burlington (8.2% Hispanic), and Tichigan (2.9% Hispanic).

Rochester's Native American/Other Population

0 residents of Rochester, or 0.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Rochester is comparable to the share in Wisconsin overall, where 0.9% of the population is Native American/Other. Rochester ranks 603rd statewide in terms of Native American/Other residents as a share of the population, out of 808 places.

Since the 2020 Census, Rochester's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Rochester's population has remained roughly unchanged at 0.0%.

Rochester is less Native American/Other than neighboring Waterford (0.5% Native American/Other), Burlington (0.1% Native American/Other), Tichigan (1.4% Native American/Other), and Bohners Lake (5.9% Native American/Other).

Rochester's Multiracial Population

97 residents of Rochester, or 2.6% of the population, identify as Multiracial. The share of Multiracial residents in Rochester is comparable to the share in Wisconsin overall, where 3.7% of the population is Multiracial. Rochester ranks 569th statewide in terms of Multiracial residents as a share of the population, out of 808 places.

Since the 2020 Census, Rochester's Multiracial population has grown by an estimated 4.3%. Multiracial residents' share of Rochester's population has remained roughly unchanged at 2.6%.

Rochester is more Multiracial than neighboring Browns Lake (0% Multiracial), Tichigan (2.3% Multiracial), and Bohners Lake (1.8% Multiracial). Rochester is less Multiracial than neighboring Waterford (6.1% Multiracial), and Burlington (3.4% 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.