Cincinnati, IA Demographics

A map of Cincinnati's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	226	273	98.7%	94.1%
Multiracial	3	15	1.3%	5.2%
Black	0	0	0.0%	0.0%
Asian	0	0	0.0%	0.0%
Hispanic	0	2	0.0%	0.7%
Native American/Other	0	0	0.0%	0.0%

Cincinnati, Iowa has an estimated population of 229, a large decrease from the 290 recorded in the 2020 Census. The population is 98.7% White, 1.3% Multiracial, 0.0% Black, 0.0% Asian, 0.0% Hispanic, and 0.0% Native American/Other. This demographic dot map shows the population of Cincinnati, with one dot drawn for each person counted by the Census, color-coded by race.

Cincinnati has become considerably less racially diverse since the 2020 Census. It is considerably less 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 Cincinnati, that probability was 11.1% in 2020 and 2.6% in the most recent ACS estimates.

Cincinnati is ranked the 673rd 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). Cincinnati was ranked the 587th most populous place in the 2020 Census.

Cincinnati's White Population

226 residents of Cincinnati, or 98.7% of the population, identify as White. The share of White residents in Cincinnati is significantly higher than in Iowa overall, where 82.3% of the population is White. Cincinnati ranks 372nd statewide in terms of White residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Cincinnati's White population has declined by an estimated 17.2%. White residents' share of Cincinnati's population has increased from 94.1% to 98.7%.

Cincinnati is more White than neighboring Numa (96.6% White), Exline (93.2% White), Centerville (89.5% White), Mystic (96.3% White), and Rathbun (96.7% White).

Cincinnati's Black Population

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

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

Cincinnati is less Black than neighboring Centerville (1% Black).

Cincinnati's Asian Population

0 residents of Cincinnati, or 0.0% of the population, identify as Asian. The share of Asian residents in Cincinnati is slightly lower than in Iowa overall, where 2.5% of the population is Asian. Cincinnati ranks 543rd statewide in terms of Asian residents as a share of the population, out of 1,026 places.

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

Cincinnati is less Asian than neighboring Centerville (1.5% Asian).

Cincinnati's Hispanic Population

0 residents of Cincinnati, or 0.0% of the population, identify as Hispanic. The share of Hispanic residents in Cincinnati is lower than in Iowa overall, where 7.3% of the population is Hispanic. Cincinnati ranks 886th statewide in terms of Hispanic residents as a share of the population, out of 1,026 places.

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

Cincinnati is less Hispanic than neighboring Exline (5.5% Hispanic), and Centerville (4.4% Hispanic).

Cincinnati's Native American/Other Population

0 residents of Cincinnati, 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 Cincinnati is comparable to the share in Iowa overall, where 0.6% of the population is Native American/Other. Cincinnati 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, Cincinnati's Native American/Other population has grown from 0 to an estimated 0. Native American/Other residents' share of Cincinnati's population has remained roughly unchanged at 0.0%.

Cincinnati is less Native American/Other than neighboring Centerville (0.1% Native American/Other).

Cincinnati's Multiracial Population

3 residents of Cincinnati, or 1.3% of the population, identify as Multiracial. The share of Multiracial residents in Cincinnati is slightly lower than in Iowa overall, where 3.5% of the population is Multiracial. Cincinnati ranks 97th statewide in terms of Multiracial residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Cincinnati's Multiracial population has declined by an estimated 80.0%. Multiracial residents' share of Cincinnati's population has decreased from 5.2% to 1.3%.

Cincinnati is less Multiracial than neighboring Numa (3.4% Multiracial), Exline (1.4% Multiracial), Centerville (3.4% Multiracial), Mystic (3.7% Multiracial), and Rathbun (3.3% 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.