Census Dots

Johnston, IA Demographics

A map of Johnston's Population by Race

Race
PopulationPercent
White
19,40180.6%
Asian
1,5066.3%
Black
1,3935.8%
Hispanic
9343.9%
Multiracial
7403.1%
Native American/Other
900.4%

Johnston, Iowa had a population of 24,064 in 2020. It was 80.6% White, 5.8% Black, 6.3% Asian, 3.9% Hispanic, 0.4% Native American/Other, and 3.1% Multiracial. This map presents the population of Johnston, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Of the 1,028 places in Iowa, Johnston is the 21st most populous. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs).

Johnston's White Population

19,401 residents of Johnston identify as White, or 80.6%. This makes the White share of the population of Johnston roughly similar to the White share of the population of Iowa (82.7% White). Of the 1,028 places in Iowa, Johnston is ranked #955 in terms of White residents as a share of the population.

Johnston is more White than neighboring Windsor Heights (77.9% White). Johnston is less White than neighboring Grimes (86.6% White), Urbandale (81.8% White), Polk City (93.3% White), and Saylorville (92.7% White).

Johnston's Black Population

1,393 residents of Johnston identify as Black, or 5.8%. This makes the Black share of the population of Johnston roughly similar to the Black share of the population of Iowa (4.1% Black). Of the 1,028 places in Iowa, Johnston is ranked #18 in terms of Black residents as a share of the population.

Johnston is more Black than neighboring Grimes (2.8% Black), Urbandale (4% Black), Windsor Heights (4.6% Black), Polk City (0.6% Black), and Saylorville (1.1% Black).

Johnston's Asian Population

1,506 residents of Johnston identify as Asian, or 6.3%. This makes the Asian share of the population of Johnston roughly similar to the Asian share of the population of Iowa (2.4% Asian). Of the 1,028 places in Iowa, Johnston is ranked #12 in terms of Asian residents as a share of the population.

Johnston is more Asian than neighboring Grimes (2.3% Asian), Urbandale (5.5% Asian), Windsor Heights (5% Asian), Polk City (0.6% Asian), and Saylorville (1% Asian).

Johnston's Hispanic Population

934 residents of Johnston identify as Hispanic, or 3.9%. This makes the Hispanic share of the population of Johnston roughly similar to the Hispanic share of the population of Iowa (6.8% Hispanic). Of the 1,028 places in Iowa, Johnston is ranked #296 in terms of Hispanic residents as a share of the population.

Johnston is more Hispanic than neighboring Polk City (2% Hispanic), and Saylorville (2.2% Hispanic). Johnston is less Hispanic than neighboring Grimes (4.4% Hispanic), Urbandale (4.9% Hispanic), and Windsor Heights (6.7% Hispanic).

Johnston's Native American/Other Population

90 residents of Johnston identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 0.4%. This makes the Native American/Other share of the population of Johnston roughly similar to the Native American/Other share of the population of Iowa (0.7% Native American/Other). Of the 1,028 places in Iowa, Johnston is ranked #379 in terms of Native American/Other residents as a share of the population.

Johnston is more Native American/Other than neighboring Polk City (0.3% Native American/Other). Johnston is less Native American/Other than neighboring Windsor Heights (0.5% Native American/Other), and Saylorville (0.5% Native American/Other).

Johnston's Multiracial Population

740 residents of Johnston identify as Multiracial, or 3.1%. This makes the Multiracial share of the population of Johnston roughly similar to the Multiracial share of the population of Iowa (3.4% Multiracial). Of the 1,028 places in Iowa, Johnston is ranked #382 in terms of Multiracial residents as a share of the population.

Johnston is more Multiracial than neighboring Saylorville (2.6% Multiracial). Johnston is less Multiracial than neighboring Grimes (3.4% Multiracial), Urbandale (3.4% Multiracial), Windsor Heights (5.4% Multiracial), and Polk City (3.2% Multiracial).

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