Ida County Demographics

A map of Ida County's Population by Race

Ida County, Iowa has an estimated population of 6,911, a slight decrease from the 7,005 recorded in the 2020 Census. The population is 91.5% White, 4.1% Hispanic, 3.1% Multiracial, 0.7% Asian, 0.3% Black, and 0.2% Native American/Other. This demographic dot map shows the population of Ida County, with one dot drawn for each person counted by the Census, color-coded by race.

Ida 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 Ida County, that probability was 12.3% in 2020 and 16.0% in the most recent ACS estimates.

Ida County is ranked the 92nd most populous county in Iowa, out of 99 counties. Ida County was ranked the 92nd most populous county in the 2020 Census.

Ida County's White Population

6,324 residents of Ida County, or 91.5% of the population, identify as White. The share of White residents in Ida County is higher than in Iowa overall, where 82.3% of the population is White. Ida County ranks 29th statewide in terms of White residents as a share of the population, out of 99 counties.

Since the 2020 Census, Ida County's White population has declined by an estimated 3.5%. White residents' share of Ida County's population has decreased from 93.6% to 91.5%.

Ida County is more White than neighboring Cherokee County (88.6% White), Crawford County (62.1% White), Buena Vista County (52.1% White), and Woodbury County (67.1% White). Ida County is less White than neighboring Sac County (91.8% White).

Ida County's Black Population

21 residents of Ida County, or 0.3% of the population, identify as Black. The share of Black residents in Ida County is slightly lower than in Iowa overall, where 3.8% of the population is Black. Ida County ranks 75th statewide in terms of Black residents as a share of the population, out of 99 counties.

Since the 2020 Census, Ida County's Black population has declined by an estimated 25.0%. Black residents' share of Ida County's population has remained roughly unchanged at 0.3%.

Ida County is less Black than neighboring Cherokee County (1% Black), Crawford County (0.9% Black), Sac County (0.5% Black), Buena Vista County (3.3% Black), and Woodbury County (4.9% Black).

Ida County's Asian Population

46 residents of Ida County, or 0.7% of the population, identify as Asian. The share of Asian residents in Ida County is comparable to the share in Iowa overall, where 2.5% of the population is Asian. Ida County ranks 81st statewide in terms of Asian residents as a share of the population, out of 99 counties.

Since the 2020 Census, Ida County's Asian population has grown by an estimated 155.6%. Asian residents' share of Ida County's population has remained roughly unchanged at 0.7%.

Ida County is more Asian than neighboring Cherokee County (0.4% Asian), and Sac County (0.4% Asian). Ida County is less Asian than neighboring Crawford County (2.2% Asian), Buena Vista County (9.5% Asian), and Woodbury County (2.3% Asian).

Ida County's Hispanic Population

286 residents of Ida County, or 4.1% of the population, identify as Hispanic. The share of Hispanic residents in Ida County is slightly lower than in Iowa overall, where 7.3% of the population is Hispanic. Ida County ranks 42nd statewide in terms of Hispanic residents as a share of the population, out of 99 counties.

Since the 2020 Census, Ida County's Hispanic population has grown by an estimated 12.2%. Hispanic residents' share of Ida County's population has remained roughly unchanged at 4.1%.

Ida County is less Hispanic than neighboring Cherokee County (5.4% Hispanic), Crawford County (30.8% Hispanic), Sac County (4.4% Hispanic), Buena Vista County (29.4% Hispanic), and Woodbury County (19.1% Hispanic).

Ida County's Native American/Other Population

17 residents of Ida County, or 0.2% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Ida County is comparable to the share in Iowa overall, where 0.6% of the population is Native American/Other. Ida County ranks 58th statewide in terms of Native American/Other residents as a share of the population, out of 99 counties.

Since the 2020 Census, Ida County's Native American/Other population has declined by an estimated 37.0%. Native American/Other residents' share of Ida County's population has remained roughly unchanged at 0.2%.

Ida County is more Native American/Other than neighboring Crawford County (0.1% Native American/Other). Ida County is less Native American/Other than neighboring Sac County (0.5% Native American/Other), Buena Vista County (3.4% Native American/Other), and Woodbury County (2.3% Native American/Other).

Ida County's Multiracial Population

217 residents of Ida County, or 3.1% of the population, identify as Multiracial. The share of Multiracial residents in Ida County is comparable to the share in Iowa overall, where 3.5% of the population is Multiracial. Ida County ranks 94th statewide in terms of Multiracial residents as a share of the population, out of 99 counties.

Since the 2020 Census, Ida County's Multiracial population has grown by an estimated 76.4%. Multiracial residents' share of Ida County's population has increased from 1.8% to 3.1%.

Ida County is more Multiracial than neighboring Sac County (2.4% Multiracial), and Buena Vista County (2.4% Multiracial). Ida County is less Multiracial than neighboring Cherokee County (4.5% Multiracial), Crawford County (3.9% Multiracial), and Woodbury County (4.3% 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.