Population By Race and Ethnicity in Stephenson, IL in 2020

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2020, the 44,503 population of Stephenson County, Illinois comprised of 2,237 people who identified as Hispanic (5.03%), and 42,266 people who identified as Non-Hispanic (94.97%).

Race: The White Alone population was the largest racial group in Stephenson County, Illinois with a population of 37,852 (85.06%); Black or African American Alone population was the second largest racial group with a population of 4,643 (10.43%); and Two Or More Races was the third largest racial group with a population of 1,515 (3.4%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Stephenson County, Illinois in 2020, with a population of 35,984 (80.86%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 4,465 (10.03%); and the third largest ethnic group was White Alone - Hispanic with a population of 1,868 (4.2%).

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 2020
Total Population:
Race in Stephenson, IL in 2020
Total Population:
Ethnicity in Stephenson, IL in 2020
Total Population:
Population By Race in Stephenson , IL in 2020
Race Population Percentage
Black or African American Alone 4,643 10.43%
White Alone 37,852 85.06%
American Indian and Alaska Native Alone 138 0.31%
Asian Alone 336 0.76%
Native Hawaiian And Pacific Islander Alone 19 0.04%
Two Or More Races 1,515 3.4%
Population By Ethnicity in Stephenson , IL in 2020
Ethnicity Population Percentage
Black or African American Alone - Hispanic 178 0.4%
White Alone - Hispanic 1,868 4.2%
American Indian and Alaska Native Alone - Hispanic 59 0.13%
Asian Alone - Hispanic 15 0.03%
Native Hawaiian And Pacific Islander Alone - Hispanic 5 0.01%
Two Or More Races - Hispanic 112 0.25%
Black or African American Alone - Non Hispanic 4,465 10.03%
White Alone - Non Hispanic 35,984 80.86%
American Indian and Alaska Native Alone - Non Hispanic 79 0.18%
Asian Alone - Non Hispanic 321 0.72%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 14 0.03%
Two Or More Races - Non Hispanic 1,403 3.15%