Population By Race and Ethnicity in Stephenson, IL in 2021

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2021, the 44,062 population of Stephenson County, Illinois comprised of 2,343 people who identified as Hispanic (5.32%), and 41,719 people who identified as Non-Hispanic (94.68%).

Race: The White Alone population was the largest racial group in Stephenson County, Illinois with a population of 37,437 (84.96%); Black or African American Alone population was the second largest racial group with a population of 4,545 (10.32%); and Two Or More Races was the third largest racial group with a population of 1,571 (3.57%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Stephenson County, Illinois in 2021, with a population of 35,486 (80.54%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 4,349 (9.87%); and the third largest ethnic group was White Alone - Hispanic with a population of 1,951 (4.43%).

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

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

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Hispanics and Non Hispanics in Stephenson, IL in 2021
Total Population:
Race in Stephenson, IL in 2021
Total Population:
Ethnicity in Stephenson, IL in 2021
Total Population:
Population By Race in Stephenson , IL in 2021
Race Population Percentage
Black or African American Alone 4,545 10.32%
White Alone 37,437 84.96%
American Indian and Alaska Native Alone 139 0.32%
Asian Alone 351 0.8%
Native Hawaiian And Pacific Islander Alone 19 0.04%
Two Or More Races 1,571 3.57%
Population By Ethnicity in Stephenson , IL in 2021
Ethnicity Population Percentage
Black or African American Alone - Hispanic 196 0.45%
White Alone - Hispanic 1,951 4.43%
American Indian and Alaska Native Alone - Hispanic 65 0.15%
Asian Alone - Hispanic 15 0.03%
Native Hawaiian And Pacific Islander Alone - Hispanic 5 0.01%
Two Or More Races - Hispanic 111 0.25%
Black or African American Alone - Non Hispanic 4,349 9.87%
White Alone - Non Hispanic 35,486 80.54%
American Indian and Alaska Native Alone - Non Hispanic 74 0.17%
Asian Alone - Non Hispanic 336 0.76%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 14 0.03%
Two Or More Races - Non Hispanic 1,460 3.31%