Population By Race and Ethnicity in Grundy, IL in 2010

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2010, the 50,155 population of Grundy County, Illinois comprised of 4,114 people who identified as Hispanic (8.2%), and 46,041 people who identified as Non-Hispanic (91.8%).

Race: The White Alone population was the largest racial group in Grundy County, Illinois with a population of 48,506 (96.71%); Black or African American Alone population was the second largest racial group with a population of 643 (1.28%); and Two Or More Races was the third largest racial group with a population of 489 (0.98%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Grundy County, Illinois in 2010, with a population of 44,626 (88.98%); the second largest ethnic group was White Alone - Hispanic with a population of 3,880 (7.74%); and the third largest ethnic group was Black or African American Alone - Non Hispanic with a population of 586 (1.17%).

The charts and tables below shows the population and percentage of each racial and ethnicity group in Grundy, Illinois.

You can find similar information for other Illinois counties, and for Illinois.

See this for other years:
Hispanics and Non Hispanics in Grundy, IL in 2010
Total Population:
Race in Grundy, IL in 2010
Total Population:
Ethnicity in Grundy, IL in 2010
Total Population:
Population By Race in Grundy , IL in 2010
Race Population Percentage
Black or African American Alone 643 1.28%
White Alone 48,506 96.71%
American Indian and Alaska Native Alone 148 0.3%
Asian Alone 350 0.7%
Native Hawaiian And Pacific Islander Alone 19 0.04%
Two Or More Races 489 0.98%
Population By Ethnicity in Grundy , IL in 2010
Ethnicity Population Percentage
Black or African American Alone - Hispanic 57 0.11%
White Alone - Hispanic 3,880 7.74%
American Indian and Alaska Native Alone - Hispanic 80 0.16%
Asian Alone - Hispanic 27 0.05%
Native Hawaiian And Pacific Islander Alone - Hispanic 7 0.01%
Two Or More Races - Hispanic 63 0.13%
Black or African American Alone - Non Hispanic 586 1.17%
White Alone - Non Hispanic 44,626 88.98%
American Indian and Alaska Native Alone - Non Hispanic 68 0.14%
Asian Alone - Non Hispanic 323 0.64%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 12 0.02%
Two Or More Races - Non Hispanic 426 0.85%