Population By Race and Ethnicity in Dubuque County, IA in 2021

Updated on August 1, 2024.

Based on the US Census Vintage data estimates, in 2021, the 98,854 population of Dubuque County, Iowa comprised of 2,990 people who identified as Hispanic (3.03%), and 95,864 people who identified as Non-Hispanic (96.98%).

Race: The White Alone population was the largest racial group in Dubuque County, Iowa with a population of 90,985 (92.04%); Black or African American Alone population was the second largest racial group with a population of 3,738 (3.78%); and Two Or More Races was the third largest racial group with a population of 1,804 (1.83%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Dubuque County, Iowa in 2021, with a population of 88,473 (89.5%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 3,583 (3.63%); and the third largest ethnic group was White Alone - Hispanic with a population of 2,512 (2.54%).

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

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

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Hispanics and Non Hispanics in Dubuque County, IA in 2021
Total Population:
Race in Dubuque County, IA in 2021
Total Population:
Ethnicity in Dubuque County, IA in 2021
Total Population:
Population By Race in Dubuque , IA in 2021
Race Population Percentage
Black or African American Alone 3,738 3.78%
White Alone 90,985 92.04%
American Indian and Alaska Native Alone 304 0.31%
Asian Alone 1,316 1.33%
Native Hawaiian And Pacific Islander Alone 707 0.72%
Two Or More Races 1,804 1.83%
Population By Ethnicity in Dubuque , IA in 2021
Ethnicity Population Percentage
Black or African American Alone - Hispanic 155 0.16%
White Alone - Hispanic 2,512 2.54%
American Indian and Alaska Native Alone - Hispanic 122 0.12%
Asian Alone - Hispanic 50 0.05%
Native Hawaiian And Pacific Islander Alone - Hispanic 17 0.02%
Two Or More Races - Hispanic 134 0.14%
Black or African American Alone - Non Hispanic 3,583 3.63%
White Alone - Non Hispanic 88,473 89.5%
American Indian and Alaska Native Alone - Non Hispanic 182 0.18%
Asian Alone - Non Hispanic 1,266 1.28%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 690 0.7%
Two Or More Races - Non Hispanic 1,670 1.69%