Rochester, IA Demographics

A map of Rochester's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	54	137	60.0%	96.5%
Multiracial	36	1	40.0%	0.7%
Black	0	0	0.0%	0.0%
Asian	0	0	0.0%	0.0%
Hispanic	0	4	0.0%	2.8%
Native American/Other	0	0	0.0%	0.0%

Rochester, Iowa has an estimated population of 90, a dramatic decrease from the 142 recorded in the 2020 Census. The population is 60.0% White, 40.0% Multiracial, 0.0% Black, 0.0% Asian, 0.0% Hispanic, 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 more racially diverse since the 2020 Census. It is considerably more diverse than Iowa 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 6.8% in 2020 and 48.0% in the most recent ACS estimates.

Rochester is ranked the 871st most populous place in Iowa, out of 1,026 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 781st most populous place in the 2020 Census.

Rochester's White Population

54 residents of Rochester, or 60.0% of the population, identify as White. The share of White residents in Rochester is significantly lower than in Iowa overall, where 82.3% of the population is White. Rochester ranks 138th statewide in terms of White residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Rochester's White population has declined by an estimated 60.6%. White residents' share of Rochester's population has decreased from 96.5% to 60.0%.

Rochester is more White than neighboring West Liberty (44.2% White). Rochester is less White than neighboring Tipton (87.8% White), Atalissa (72.7% White), Moscow (100% White), and Wilton (92.6% White).

Rochester's Black Population

0 residents of Rochester, or 0.0% of the population, identify as Black. The share of Black residents in Rochester is slightly lower than in Iowa overall, where 3.8% of the population is Black. Rochester ranks 600th statewide in terms of Black residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Rochester's Black population has grown from 0 to an estimated 0. Black residents' share of Rochester's population has remained roughly unchanged at 0.0%.

Rochester is less Black than neighboring Tipton (1.1% Black), Atalissa (2.4% Black), and Wilton (2.6% 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 Iowa overall, where 2.5% of the population is Asian. Rochester ranks 543rd statewide in terms of Asian residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Rochester's Asian population has grown from 0 to an estimated 0. Asian residents' share of Rochester's population has remained roughly unchanged at 0.0%.

Rochester is less Asian than neighboring Wilton (0.4% Asian).

Rochester's Hispanic Population

0 residents of Rochester, or 0.0% of the population, identify as Hispanic. The share of Hispanic residents in Rochester is lower than in Iowa overall, where 7.3% of the population is Hispanic. Rochester ranks 456th statewide in terms of Hispanic residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Rochester's Hispanic population has declined by an estimated 100.0%. Hispanic residents' share of Rochester's population has decreased from 2.8% to 0.0%.

Rochester is less Hispanic than neighboring Tipton (5.1% Hispanic), Atalissa (24.5% Hispanic), Wilton (2.2% Hispanic), and West Liberty (55.5% 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 Iowa overall, where 0.6% of the population is Native American/Other. Rochester ranks 637th statewide in terms of Native American/Other residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Rochester's Native American/Other population has grown from 0 to an estimated 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 Tipton (1.7% Native American/Other).

Rochester's Multiracial Population

36 residents of Rochester, or 40.0% of the population, identify as Multiracial. The share of Multiracial residents in Rochester is significantly higher than in Iowa overall, where 3.5% of the population is Multiracial. Rochester ranks 927th statewide in terms of Multiracial residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Rochester's Multiracial population has grown by an estimated 3500.0%. Multiracial residents' share of Rochester's population has increased from 0.7% to 40.0%.

Rochester is more Multiracial than neighboring Tipton (4.4% Multiracial), Atalissa (0.4% Multiracial), Moscow (0% Multiracial), Wilton (2.2% Multiracial), and West Liberty (0.3% 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.