Population By Race and Ethnicity in Jefferson County, IA in 2010

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2010, the 16,835 population of Jefferson County, Iowa comprised of 407 people who identified as Hispanic (2.42%), and 16,428 people who identified as Non-Hispanic (97.58%).

Race: The White Alone population was the largest racial group in Jefferson County, Iowa with a population of 14,865 (88.3%); Asian Alone population was the second largest racial group with a population of 1,470 (8.73%); and Two Or More Races was the third largest racial group with a population of 231 (1.37%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Jefferson County, Iowa in 2010, with a population of 14,516 (86.23%); the second largest ethnic group was Asian Alone - Non Hispanic with a population of 1,461 (8.68%); and the third largest ethnic group was White Alone - Hispanic with a population of 349 (2.07%).

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 2010
Total Population:
Race in Jefferson County, IA in 2010
Total Population:
Ethnicity in Jefferson County, IA in 2010
Total Population:
Population By Race in Jefferson , IA in 2010
Race Population Percentage
Black or African American Alone 227 1.35%
White Alone 14,865 88.3%
American Indian and Alaska Native Alone 38 0.23%
Asian Alone 1,470 8.73%
Native Hawaiian And Pacific Islander Alone 4 0.02%
Two Or More Races 231 1.37%
Population By Ethnicity in Jefferson , IA in 2010
Ethnicity Population Percentage
Black or African American Alone - Hispanic 18 0.11%
White Alone - Hispanic 349 2.07%
American Indian and Alaska Native Alone - Hispanic 8 0.05%
Asian Alone - Hispanic 9 0.05%
Native Hawaiian And Pacific Islander Alone - Hispanic 2 0.01%
Two Or More Races - Hispanic 21 0.13%
Black or African American Alone - Non Hispanic 209 1.24%
White Alone - Non Hispanic 14,516 86.23%
American Indian and Alaska Native Alone - Non Hispanic 30 0.18%
Asian Alone - Non Hispanic 1,461 8.68%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 2 0.01%
Two Or More Races - Non Hispanic 210 1.25%