Population By Race and Ethnicity in Jefferson County, IA in 2015

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2015, the 17,913 population of Jefferson County, Iowa comprised of 520 people who identified as Hispanic (2.9%), and 17,393 people who identified as Non-Hispanic (97.1%).

Race: The White Alone population was the largest racial group in Jefferson County, Iowa with a population of 14,961 (83.52%); Asian Alone population was the second largest racial group with a population of 2,196 (12.26%); and Black or African American Alone was the third largest racial group with a population of 396 (2.21%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Jefferson County, Iowa in 2015, with a population of 14,517 (81.04%); the second largest ethnic group was Asian Alone - Non Hispanic with a population of 2,183 (12.19%); and the third largest ethnic group was White Alone - Hispanic with a population of 444 (2.48%).

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 2015
Total Population:
Race in Jefferson County, IA in 2015
Total Population:
Ethnicity in Jefferson County, IA in 2015
Total Population:
Population By Race in Jefferson , IA in 2015
Race Population Percentage
Black or African American Alone 396 2.21%
White Alone 14,961 83.52%
American Indian and Alaska Native Alone 51 0.28%
Asian Alone 2,196 12.26%
Native Hawaiian And Pacific Islander Alone 11 0.06%
Two Or More Races 298 1.66%
Population By Ethnicity in Jefferson , IA in 2015
Ethnicity Population Percentage
Black or African American Alone - Hispanic 23 0.13%
White Alone - Hispanic 444 2.48%
American Indian and Alaska Native Alone - Hispanic 12 0.07%
Asian Alone - Hispanic 13 0.07%
Native Hawaiian And Pacific Islander Alone - Hispanic 2 0.01%
Two Or More Races - Hispanic 26 0.14%
Black or African American Alone - Non Hispanic 373 2.08%
White Alone - Non Hispanic 14,517 81.04%
American Indian and Alaska Native Alone - Non Hispanic 39 0.22%
Asian Alone - Non Hispanic 2,183 12.19%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 9 0.05%
Two Or More Races - Non Hispanic 272 1.52%