Calhoun County Demographics

A map of Calhoun County's Population by Race

Calhoun County, Iowa has an estimated population of 9,803, a slight decrease from the 9,927 recorded in the 2020 Census. The population is 91.3% White, 3.6% Multiracial, 2.7% Hispanic, 1.6% Black, 0.6% Native American/Other, and 0.2% Asian. This demographic dot map shows the population of Calhoun County, with one dot drawn for each person counted by the Census, color-coded by race.

Calhoun has become more 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 Calhoun County, that probability was 12.8% in 2020 and 16.3% in the most recent ACS estimates.

Calhoun County is ranked the 75th most populous county in Iowa, out of 99 counties. Calhoun County was ranked the 75th most populous county in the 2020 Census.

Calhoun County's White Population

8,954 residents of Calhoun County, or 91.3% of the population, identify as White. The share of White residents in Calhoun County is higher than in Iowa overall, where 82.3% of the population is White. Calhoun County ranks 34th statewide in terms of White residents as a share of the population, out of 99 counties.

Since the 2020 Census, Calhoun County's White population has declined by an estimated 3.3%. White residents' share of Calhoun County's population has decreased from 93.3% to 91.3%.

Calhoun County is more White than neighboring Pocahontas County (88.6% White), and Webster County (83.9% White). Calhoun County is less White than neighboring Carroll County (91.9% White), Greene County (92.3% White), and Sac County (91.8% White).

Calhoun County's Black Population

158 residents of Calhoun County, or 1.6% of the population, identify as Black. The share of Black residents in Calhoun County is slightly lower than in Iowa overall, where 3.8% of the population is Black. Calhoun County ranks 30th statewide in terms of Black residents as a share of the population, out of 99 counties.

Since the 2020 Census, Calhoun County's Black population has grown by an estimated 4.6%. Black residents' share of Calhoun County's population has remained roughly unchanged at 1.6%.

Calhoun County is more Black than neighboring Pocahontas County (0.7% Black), Carroll County (0.5% Black), Greene County (0.1% Black), and Sac County (0.5% Black). Calhoun County is less Black than neighboring Webster County (3.3% Black).

Calhoun County's Asian Population

22 residents of Calhoun County, or 0.2% of the population, identify as Asian. The share of Asian residents in Calhoun County is slightly lower than in Iowa overall, where 2.5% of the population is Asian. Calhoun County ranks 84th statewide in terms of Asian residents as a share of the population, out of 99 counties.

Since the 2020 Census, Calhoun County's Asian population has declined by an estimated 8.3%. Asian residents' share of Calhoun County's population has remained roughly unchanged at 0.2%.

Calhoun County is less Asian than neighboring Greene County (0.6% Asian), Webster County (1.2% Asian), and Sac County (0.4% Asian).

Calhoun County's Hispanic Population

266 residents of Calhoun County, or 2.7% of the population, identify as Hispanic. The share of Hispanic residents in Calhoun County is slightly lower than in Iowa overall, where 7.3% of the population is Hispanic. Calhoun County ranks 74th statewide in terms of Hispanic residents as a share of the population, out of 99 counties.

Since the 2020 Census, Calhoun County's Hispanic population has grown by an estimated 12.7%. Hispanic residents' share of Calhoun County's population has remained roughly unchanged at 2.7%.

Calhoun County is less Hispanic than neighboring Pocahontas County (5.8% Hispanic), Carroll County (3.5% Hispanic), Greene County (3.5% Hispanic), Webster County (6.6% Hispanic), and Sac County (4.4% Hispanic).

Calhoun County's Native American/Other Population

54 residents of Calhoun County, 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 Calhoun County is comparable to the share in Iowa overall, where 0.6% of the population is Native American/Other. Calhoun County ranks 45th statewide in terms of Native American/Other residents as a share of the population, out of 99 counties.

Since the 2020 Census, Calhoun County's Native American/Other population has grown by an estimated 10.2%. Native American/Other residents' share of Calhoun County's population has remained roughly unchanged at 0.6%.

Calhoun County is more Native American/Other than neighboring Carroll County (0.3% Native American/Other), Greene County (0.3% Native American/Other), Webster County (0.4% Native American/Other), and Sac County (0.5% Native American/Other). Calhoun County is less Native American/Other than neighboring Pocahontas County (0.9% Native American/Other).

Calhoun County's Multiracial Population

349 residents of Calhoun County, or 3.6% of the population, identify as Multiracial. The share of Multiracial residents in Calhoun County is comparable to the share in Iowa overall, where 3.5% of the population is Multiracial. Calhoun County ranks 80th statewide in terms of Multiracial residents as a share of the population, out of 99 counties.

Since the 2020 Census, Calhoun County's Multiracial population has grown by an estimated 69.4%. Multiracial residents' share of Calhoun County's population has increased from 2.1% to 3.6%.

Calhoun County is more Multiracial than neighboring Greene County (3.1% Multiracial), and Sac County (2.4% Multiracial). Calhoun County is less Multiracial than neighboring Pocahontas County (3.9% Multiracial), and Webster County (4.7% 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.