Dallas County Demographics

A map of Dallas County's Population by Race

Dallas County, Iowa had a population of 99,678 in 2020. It was 82.0% White, 2.7% Black, 5.0% Asian, 6.5% Hispanic, 0.5% Native American/Other, and 3.3% Multiracial. This map presents the population of Dallas County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Dallas County is the 7th most populous county of the 99 counties in Iowa.

Dallas County's White Population

81,708 residents of Dallas County identify as White, or 82.0%. This makes the White share of the population of Dallas County roughly similar to the White share of the population of Iowa (82.7% White). Of the 99 counties in Iowa, Dallas County is ranked #82 in terms of White residents as a share of the population.

Dallas County is more White than neighboring Polk County (73.6% White). Dallas County is less White than neighboring Madison County (93.7% White), Boone County (92.5% White), Guthrie County (93.8% White), and Greene County (93.4% White).

Dallas County's Black Population

2,657 residents of Dallas County identify as Black, or 2.7%. This makes the Black share of the population of Dallas County roughly similar to the Black share of the population of Iowa (4.1% Black). Of the 99 counties in Iowa, Dallas County is ranked #15 in terms of Black residents as a share of the population.

Dallas County is more Black than neighboring Madison County (0.3% Black), Boone County (1.1% Black), Guthrie County (0.3% Black), and Greene County (0.3% Black). Dallas County is less Black than neighboring Polk County (7.1% Black).

Dallas County's Asian Population

4,987 residents of Dallas County identify as Asian, or 5.0%. This makes the Asian share of the population of Dallas County roughly similar to the Asian share of the population of Iowa (2.4% Asian). Of the 99 counties in Iowa, Dallas County is ranked #4 in terms of Asian residents as a share of the population.

Dallas County is more Asian than neighboring Madison County (0.5% Asian), Boone County (0.4% Asian), Guthrie County (0.3% Asian), Polk County (4.9% Asian), and Greene County (0.5% Asian).

Dallas County's Hispanic Population

6,515 residents of Dallas County identify as Hispanic, or 6.5%. This makes the Hispanic share of the population of Dallas County roughly similar to the Hispanic share of the population of Iowa (6.8% Hispanic). Of the 99 counties in Iowa, Dallas County is ranked #24 in terms of Hispanic residents as a share of the population.

Dallas County is more Hispanic than neighboring Madison County (1.9% Hispanic), Boone County (2.7% Hispanic), Guthrie County (2.6% Hispanic), and Greene County (2.9% Hispanic). Dallas County is less Hispanic than neighboring Polk County (9.8% Hispanic).

Dallas County's Native American/Other Population

509 residents of Dallas County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 0.5%. This makes the Native American/Other share of the population of Dallas 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, Dallas County is ranked #41 in terms of Native American/Other residents as a share of the population.

Dallas County is more Native American/Other than neighboring Boone County (0.4% Native American/Other), and Greene County (0.3% Native American/Other). Dallas County is less Native American/Other than neighboring Guthrie County (0.8% Native American/Other), and Polk County (0.6% Native American/Other).

Dallas County's Multiracial Population

3,302 residents of Dallas County identify as Multiracial, or 3.3%. This makes the Multiracial share of the population of Dallas County roughly similar to the Multiracial share of the population of Iowa (3.4% Multiracial). Of the 99 counties in Iowa, Dallas County is ranked #17 in terms of Multiracial residents as a share of the population.

Dallas County is more Multiracial than neighboring Madison County (3.1% Multiracial), Boone County (3% Multiracial), Guthrie County (2.2% Multiracial), and Greene County (2.6% Multiracial). Dallas County is less Multiracial than neighboring Polk County (4% Multiracial).

Source: 2020 Census State Redistricting Data and Census TIGER/Line Shapefiles.