Population By Race and Ethnicity in Stephenson County, IL in 2011

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2011, the 47,328 population of Stephenson County, Illinois comprised of 1,414 people who identified as Hispanic (2.99%), and 45,914 people who identified as Non-Hispanic (97.01%).

Race: The White Alone population was the largest racial group in Stephenson County, Illinois with a population of 41,335 (87.34%); Black or African American Alone population was the second largest racial group with a population of 4,421 (9.34%); and Two Or More Races was the third largest racial group with a population of 1,122 (2.37%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Stephenson County, Illinois in 2011, with a population of 40,136 (84.8%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 4,312 (9.11%); and the third largest ethnic group was White Alone - Hispanic with a population of 1,199 (2.53%).

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 County, IL in 2011
Total Population:
Race in Stephenson County, IL in 2011
Total Population:
Ethnicity in Stephenson County, IL in 2011
Total Population:
Population By Race in Stephenson , IL in 2011
Race Population Percentage
Black or African American Alone 4,421 9.34%
White Alone 41,335 87.34%
American Indian and Alaska Native Alone 105 0.22%
Asian Alone 327 0.69%
Native Hawaiian And Pacific Islander Alone 18 0.04%
Two Or More Races 1,122 2.37%
Population By Ethnicity in Stephenson , IL in 2011
Ethnicity Population Percentage
Black or African American Alone - Hispanic 109 0.23%
White Alone - Hispanic 1,199 2.53%
American Indian and Alaska Native Alone - Hispanic 36 0.08%
Asian Alone - Hispanic 4 0.01%
Native Hawaiian And Pacific Islander Alone - Hispanic 3 0.01%
Two Or More Races - Hispanic 63 0.13%
Black or African American Alone - Non Hispanic 4,312 9.11%
White Alone - Non Hispanic 40,136 84.8%
American Indian and Alaska Native Alone - Non Hispanic 69 0.15%
Asian Alone - Non Hispanic 323 0.68%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 15 0.03%
Two Or More Races - Non Hispanic 1,059 2.24%