Grundy County Demographics

A map of Grundy County's Population by Race

Grundy County, Illinois had a population of 52,533 in 2020. It was 82.8% White, 1.6% Black, 0.9% Asian, 10.9% Hispanic, 0.4% Native American/Other, and 3.5% Multiracial. This map presents the population of Grundy County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Grundy County is the 27th most populous county of the 102 counties in Illinois.

Grundy County's White Population

43,472 residents of Grundy County identify as White, or 82.8%. This makes the White share of the population of Grundy County considerably larger than the White share of the population of Illinois (58.3% White). Of the 102 counties in Illinois, Grundy County is ranked #71 in terms of White residents as a share of the population.

Grundy County is more White than neighboring Kendall County (64.2% White), Will County (60.1% White), LaSalle County (82.5% White), and Kankakee County (68.5% White). Grundy County is less White than neighboring Livingston County (88% White).

Grundy County's Black Population

833 residents of Grundy County identify as Black, or 1.6%. This makes the Black share of the population of Grundy County less than the Black share of the population of Illinois (13.9% Black). Of the 102 counties in Illinois, Grundy County is ranked #54 in terms of Black residents as a share of the population.

Grundy County is less Black than neighboring Kendall County (7.4% Black), Livingston County (3% Black), Will County (11.4% Black), LaSalle County (2.3% Black), and Kankakee County (14.3% Black).

Grundy County's Asian Population

466 residents of Grundy County identify as Asian, or 0.9%. This makes the Asian share of the population of Grundy County roughly similar to the Asian share of the population of Illinois (5.8% Asian). Of the 102 counties in Illinois, Grundy County is ranked #30 in terms of Asian residents as a share of the population.

Grundy County is more Asian than neighboring Livingston County (0.5% Asian), and LaSalle County (0.8% Asian). Grundy County is less Asian than neighboring Kendall County (3.5% Asian), Will County (6.1% Asian), and Kankakee County (1% Asian).

Grundy County's Hispanic Population

5,712 residents of Grundy County identify as Hispanic, or 10.9%. This makes the Hispanic share of the population of Grundy County slightly less than the Hispanic share of the population of Illinois (18.2% Hispanic). Of the 102 counties in Illinois, Grundy County is ranked #16 in terms of Hispanic residents as a share of the population.

Grundy County is more Hispanic than neighboring Livingston County (5.2% Hispanic), and LaSalle County (10.4% Hispanic). Grundy County is less Hispanic than neighboring Kendall County (20.6% Hispanic), Will County (18.8% Hispanic), and Kankakee County (11.6% Hispanic).

Grundy County's Native American/Other Population

186 residents of Grundy County 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 Grundy County roughly similar to the Native American/Other share of the population of Illinois (0.5% Native American/Other). Of the 102 counties in Illinois, Grundy County is ranked #72 in terms of Native American/Other residents as a share of the population.

Grundy County is less Native American/Other than neighboring Kendall County (0.5% Native American/Other), and Kankakee County (0.5% Native American/Other).

Grundy County's Multiracial Population

1,864 residents of Grundy County identify as Multiracial, or 3.5%. This makes the Multiracial share of the population of Grundy County roughly similar to the Multiracial share of the population of Illinois (3.2% Multiracial). Of the 102 counties in Illinois, Grundy County is ranked #41 in terms of Multiracial residents as a share of the population.

Grundy County is more Multiracial than neighboring Livingston County (3% Multiracial), and Will County (3.2% Multiracial). Grundy County is less Multiracial than neighboring Kendall County (3.9% Multiracial), LaSalle County (3.6% Multiracial), and Kankakee County (4% Multiracial).

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