Jasper County Demographics

A map of Jasper County's Population by Race

Jasper County, Iowa had a population of 37,813 in 2020. It was 91.1% White, 1.8% Black, 0.6% Asian, 2.9% Hispanic, 0.6% Native American/Other, and 3.1% Multiracial. This map presents the population of Jasper County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Jasper County is the 17th most populous county of the 99 counties in Iowa.

Jasper County's White Population

34,445 residents of Jasper County identify as White, or 91.1%. This makes the White share of the population of Jasper County slightly larger than the White share of the population of Iowa (82.7% White). Of the 99 counties in Iowa, Jasper County is ranked #57 in terms of White residents as a share of the population.

Jasper County is more White than neighboring Marshall County (68.4% White), Polk County (73.6% White), and Story County (81.1% White). Jasper County is less White than neighboring Marion County (92.5% White).

Jasper County's Black Population

683 residents of Jasper County identify as Black, or 1.8%. This makes the Black share of the population of Jasper County roughly similar to the Black share of the population of Iowa (4.1% Black). Of the 99 counties in Iowa, Jasper County is ranked #27 in terms of Black residents as a share of the population.

Jasper County is more Black than neighboring Marion County (0.8% Black), and Poweshiek County (1.7% Black). Jasper County is less Black than neighboring Marshall County (2% Black), Polk County (7.1% Black), and Story County (3% Black).

Jasper County's Asian Population

215 residents of Jasper County identify as Asian, or 0.6%. This makes the Asian share of the population of Jasper County roughly similar to the Asian share of the population of Iowa (2.4% Asian). Of the 99 counties in Iowa, Jasper County is ranked #35 in terms of Asian residents as a share of the population.

Jasper County is less Asian than neighboring Marshall County (3.8% Asian), Marion County (1.2% Asian), Polk County (4.9% Asian), Poweshiek County (1.2% Asian), and Story County (5.5% Asian).

Jasper County's Hispanic Population

1,087 residents of Jasper County identify as Hispanic, or 2.9%. This makes the Hispanic share of the population of Jasper County roughly similar to the Hispanic share of the population of Iowa (6.8% Hispanic). Of the 99 counties in Iowa, Jasper County is ranked #61 in terms of Hispanic residents as a share of the population.

Jasper County is more Hispanic than neighboring Marion County (2.1% Hispanic), and Poweshiek County (2.8% Hispanic). Jasper County is less Hispanic than neighboring Marshall County (22.8% Hispanic), Polk County (9.8% Hispanic), and Story County (5.1% Hispanic).

Jasper County's Native American/Other Population

225 residents of Jasper County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 0.6%. This makes the Native American/Other share of the population of Jasper 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, Jasper County is ranked #26 in terms of Native American/Other residents as a share of the population.

Jasper County is more Native American/Other than neighboring Marion County (0.5% Native American/Other).

Jasper County's Multiracial Population

1,158 residents of Jasper County identify as Multiracial, or 3.1%. This makes the Multiracial share of the population of Jasper County roughly similar to the Multiracial share of the population of Iowa (3.4% Multiracial). Of the 99 counties in Iowa, Jasper County is ranked #24 in terms of Multiracial residents as a share of the population.

Jasper County is more Multiracial than neighboring Marshall County (2.5% Multiracial), Marion County (2.8% Multiracial), and Poweshiek County (2.6% Multiracial). Jasper County is less Multiracial than neighboring Polk County (4% Multiracial), and Story County (4.6% Multiracial).

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