Decatur County Demographics
A map of Decatur County's Population by Race
Race | Population | Percent |
|---|---|---|
White | 7,010 | 91.7% |
Multiracial | 224 | 2.9% |
Hispanic | 211 | 2.8% |
Black | 97 | 1.3% |
Native American/Other | 64 | 0.8% |
Asian | 39 | 0.5% |
Decatur County, Iowa had a population of 7,645 in 2020. It was 91.7% White, 1.3% Black, 0.5% Asian, 2.8% Hispanic, 0.8% Native American/Other, and 2.9% Multiracial. This map presents the population of Decatur County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.
Decatur County is the 86th most populous county of the 99 counties in Iowa.
Decatur County's White Population
7,010 residents of Decatur County identify as White, or 91.7%. This makes the White share of the population of Decatur County slightly larger than the White share of the population of Iowa (82.7% White). Of the 99 counties in Iowa, Decatur County is ranked #52 in terms of White residents as a share of the population.
Decatur County is more White than neighboring Clarke County (80.4% White). Decatur County is less White than neighboring Mercer County (93% White), Harrison County (93.4% White), Ringgold County (95.4% White), and Wayne County (95.9% White).
Decatur County's Black Population
97 residents of Decatur County identify as Black, or 1.3%. This makes the Black share of the population of Decatur County roughly similar to the Black share of the population of Iowa (4.1% Black). Of the 99 counties in Iowa, Decatur County is ranked #32 in terms of Black residents as a share of the population.
Decatur County is more Black than neighboring Clarke County (0.4% Black), Mercer County (0% Black), Harrison County (0.4% Black), Ringgold County (0% Black), and Wayne County (0.2% Black).
Decatur County's Asian Population
39 residents of Decatur County identify as Asian, or 0.5%. This makes the Asian share of the population of Decatur County roughly similar to the Asian share of the population of Iowa (2.4% Asian). Of the 99 counties in Iowa, Decatur County is ranked #42 in terms of Asian residents as a share of the population.
Decatur County is more Asian than neighboring Mercer County (0% Asian), Harrison County (0.3% Asian), Ringgold County (0.2% Asian), and Wayne County (0.4% Asian). Decatur County is less Asian than neighboring Clarke County (0.8% Asian).
Decatur County's Hispanic Population
211 residents of Decatur County identify as Hispanic, or 2.8%. This makes the Hispanic share of the population of Decatur County roughly similar to the Hispanic share of the population of Iowa (6.8% Hispanic). Of the 99 counties in Iowa, Decatur County is ranked #65 in terms of Hispanic residents as a share of the population.
Decatur County is more Hispanic than neighboring Harrison County (2.1% Hispanic), Ringgold County (1.5% Hispanic), and Wayne County (0.9% Hispanic). Decatur County is less Hispanic than neighboring Clarke County (15.7% Hispanic), and Mercer County (4.4% Hispanic).
Decatur County's Native American/Other Population
64 residents of Decatur County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 0.8%. This makes the Native American/Other share of the population of Decatur County roughly similar to the Native American/Other share of the population of Iowa (0.7% Native American/Other). Of the 99 counties in Iowa, Decatur County is ranked #13 in terms of Native American/Other residents as a share of the population.
Decatur County is more Native American/Other than neighboring Mercer County (0.4% Native American/Other), Harrison County (0.5% Native American/Other), Ringgold County (0.2% Native American/Other), and Wayne County (0.4% Native American/Other).
Decatur County's Multiracial Population
224 residents of Decatur County identify as Multiracial, or 2.9%. This makes the Multiracial share of the population of Decatur County roughly similar to the Multiracial share of the population of Iowa (3.4% Multiracial). Of the 99 counties in Iowa, Decatur County is ranked #30 in terms of Multiracial residents as a share of the population.
Decatur County is more Multiracial than neighboring Clarke County (1.8% Multiracial), Mercer County (2.2% Multiracial), Ringgold County (2.7% Multiracial), and Wayne County (2.2% Multiracial). Decatur County is less Multiracial than neighboring Harrison County (3.3% Multiracial).
Source: 2020 Census State Redistricting Data and Census TIGER/Line Shapefiles.