Population By Race and Ethnicity in Jefferson County, IA in 2019

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2019, the 18,180 population of Jefferson County, Iowa comprised of 594 people who identified as Hispanic (3.27%), and 17,586 people who identified as Non-Hispanic (96.73%).

Race: The White Alone population was the largest racial group in Jefferson County, Iowa with a population of 15,228 (83.76%); Asian Alone population was the second largest racial group with a population of 2,107 (11.59%); and Black or African American Alone was the third largest racial group with a population of 430 (2.37%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Jefferson County, Iowa in 2019, with a population of 14,727 (81.01%); the second largest ethnic group was Asian Alone - Non Hispanic with a population of 2,095 (11.52%); and the third largest ethnic group was White Alone - Hispanic with a population of 501 (2.76%).

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

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

See this for other years:
Hispanics and Non Hispanics in Jefferson County, IA in 2019
Total Population:
Race in Jefferson County, IA in 2019
Total Population:
Ethnicity in Jefferson County, IA in 2019
Total Population:
Population By Race in Jefferson , IA in 2019
Race Population Percentage
Black or African American Alone 430 2.37%
White Alone 15,228 83.76%
American Indian and Alaska Native Alone 59 0.33%
Asian Alone 2,107 11.59%
Native Hawaiian And Pacific Islander Alone 6 0.03%
Two Or More Races 350 1.93%
Population By Ethnicity in Jefferson , IA in 2019
Ethnicity Population Percentage
Black or African American Alone - Hispanic 26 0.14%
White Alone - Hispanic 501 2.76%
American Indian and Alaska Native Alone - Hispanic 15 0.08%
Asian Alone - Hispanic 12 0.07%
Native Hawaiian And Pacific Islander Alone - Hispanic 2 0.01%
Two Or More Races - Hispanic 38 0.21%
Black or African American Alone - Non Hispanic 404 2.22%
White Alone - Non Hispanic 14,727 81.01%
American Indian and Alaska Native Alone - Non Hispanic 44 0.24%
Asian Alone - Non Hispanic 2,095 11.52%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 4 0.02%
Two Or More Races - Non Hispanic 312 1.72%