Population By Race and Ethnicity in Stephenson County, IL in 2015

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2015, the 45,680 population of Stephenson County, Illinois comprised of 1,664 people who identified as Hispanic (3.64%), and 44,016 people who identified as Non-Hispanic (96.36%).

Race: The White Alone population was the largest racial group in Stephenson County, Illinois with a population of 39,453 (86.37%); Black or African American Alone population was the second largest racial group with a population of 4,475 (9.8%); and Two Or More Races was the third largest racial group with a population of 1,308 (2.86%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Stephenson County, Illinois in 2015, with a population of 38,060 (83.32%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 4,339 (9.5%); and the third largest ethnic group was White Alone - Hispanic with a population of 1,393 (3.05%).

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 2015
Total Population:
Race in Stephenson County, IL in 2015
Total Population:
Ethnicity in Stephenson County, IL in 2015
Total Population:
Population By Race in Stephenson , IL in 2015
Race Population Percentage
Black or African American Alone 4,475 9.8%
White Alone 39,453 86.37%
American Indian and Alaska Native Alone 116 0.25%
Asian Alone 308 0.67%
Native Hawaiian And Pacific Islander Alone 20 0.04%
Two Or More Races 1,308 2.86%
Population By Ethnicity in Stephenson , IL in 2015
Ethnicity Population Percentage
Black or African American Alone - Hispanic 136 0.3%
White Alone - Hispanic 1,393 3.05%
American Indian and Alaska Native Alone - Hispanic 48 0.11%
Asian Alone - Hispanic 6 0.01%
Native Hawaiian And Pacific Islander Alone - Hispanic 5 0.01%
Two Or More Races - Hispanic 76 0.17%
Black or African American Alone - Non Hispanic 4,339 9.5%
White Alone - Non Hispanic 38,060 83.32%
American Indian and Alaska Native Alone - Non Hispanic 68 0.15%
Asian Alone - Non Hispanic 302 0.66%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 15 0.03%
Two Or More Races - Non Hispanic 1,232 2.7%