Janesville, IA Demographics

A map of Janesville's Population by Race

Janesville, Iowa had a population of 1,034 in 2020. It was 95.9% White, 0.0% Black, 0.5% Asian, 1.2% Hispanic, 0.0% Native American/Other, and 2.4% Multiracial. This map presents the population of Janesville, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Of the 1,028 places in Iowa, Janesville is the 275th 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).

Janesville's White Population

992 residents of Janesville identify as White, or 95.9%. This makes the White share of the population of Janesville larger than the White share of the population of Iowa (82.7% White). Of the 1,028 places in Iowa, Janesville is ranked #189 in terms of White residents as a share of the population.

Janesville is more White than neighboring Waverly (90.5% White), Cedar Falls (86.6% White), Denver (95.8% White), Shell Rock (95.6% White), and New Hartford (94.9% White).

Janesville's Black Population

0 residents of Janesville identify as Black, or 0.0%. This makes the Black share of the population of Janesville roughly similar to the Black share of the population of Iowa (4.1% Black). Of the 1,028 places in Iowa, Janesville is ranked #600 in terms of Black residents as a share of the population.

Janesville is less Black than neighboring Waverly (2.2% Black), Cedar Falls (3.1% Black), and New Hartford (0.2% Black).

Janesville's Asian Population

5 residents of Janesville identify as Asian, or 0.5%. This makes the Asian share of the population of Janesville roughly similar to the Asian share of the population of Iowa (2.4% Asian). Of the 1,028 places in Iowa, Janesville is ranked #266 in terms of Asian residents as a share of the population.

Janesville is more Asian than neighboring Denver (0.3% Asian), Shell Rock (0.2% Asian), and New Hartford (0% Asian). Janesville is less Asian than neighboring Waverly (1.5% Asian), and Cedar Falls (3.2% Asian).

Janesville's Hispanic Population

12 residents of Janesville identify as Hispanic, or 1.2%. This makes the Hispanic share of the population of Janesville slightly less than the Hispanic share of the population of Iowa (6.8% Hispanic). Of the 1,028 places in Iowa, Janesville is ranked #786 in terms of Hispanic residents as a share of the population.

Janesville is more Hispanic than neighboring New Hartford (1.1% Hispanic). Janesville is less Hispanic than neighboring Waverly (2.7% Hispanic), Cedar Falls (2.9% Hispanic), Denver (1.3% Hispanic), and Shell Rock (1.6% Hispanic).

Janesville's Native American/Other Population

0 residents of Janesville identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 0.0%. This makes the Native American/Other share of the population of Janesville 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, Janesville is ranked #636 in terms of Native American/Other residents as a share of the population.

Janesville is less Native American/Other than neighboring Waverly (0.3% Native American/Other), Cedar Falls (0.7% Native American/Other), Shell Rock (0.2% Native American/Other), and New Hartford (0.5% Native American/Other).

Janesville's Multiracial Population

25 residents of Janesville identify as Multiracial, or 2.4%. This makes the Multiracial share of the population of Janesville roughly similar to the Multiracial share of the population of Iowa (3.4% Multiracial). Of the 1,028 places in Iowa, Janesville is ranked #583 in terms of Multiracial residents as a share of the population.

Janesville is less Multiracial than neighboring Waverly (2.6% Multiracial), Cedar Falls (3.6% Multiracial), Denver (2.6% Multiracial), Shell Rock (2.5% Multiracial), and New Hartford (3.3% Multiracial).

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