Population By Race and Ethnicity in Jefferson County, IA in 2018

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2018, the 18,102 population of Jefferson County, Iowa comprised of 582 people who identified as Hispanic (3.22%), and 17,520 people who identified as Non-Hispanic (96.79%).

Race: The White Alone population was the largest racial group in Jefferson County, Iowa with a population of 15,234 (84.16%); Asian Alone population was the second largest racial group with a population of 2,057 (11.36%); and Black or African American Alone was the third largest racial group with a population of 434 (2.4%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Jefferson County, Iowa in 2018, with a population of 14,740 (81.43%); the second largest ethnic group was Asian Alone - Non Hispanic with a population of 2,046 (11.3%); and the third largest ethnic group was White Alone - Hispanic with a population of 494 (2.73%).

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.

Data Source: US Census Bureau (Vintage).

See this for other years:

Hispanics and Non Hispanics in Jefferson County, IA in 2018

Total Population:18,102

Non Hispanic (96.79%)

Hispanic (3.22%)

Race in Jefferson County, IA in 2018

Total Population:18,102

White Alone (84.16%)

Asian Alone (11.36%)

Black or African American Alone (2.4%)

Two or more races (1.74%)

American Indian and Alaska Native Alone (0.33%)

Native Hawaiian And Pacific Islander Alone (0.02%)

Ethnicity in Jefferson County, IA in 2018

Total Population:18,102

Non-Hispanic White Alone (81.43%)

Non-Hispanic Asian Alone (11.3%)

Hispanic White Alone (2.73%)

Non-Hispanic Black or African American Alone (2.24%)

Non-Hispanic Two or more races (1.56%)

All Other Ethnicities (0.75%)

Population By Race in Jefferson , IA in 2018

Race	Population	Percentage
White Alone	15,234	84.16%
Asian Alone	2,057	11.36%
Black or African American Alone	434	2.4%
Two Or More Races	314	1.74%
American Indian and Alaska Native Alone	59	0.33%
Native Hawaiian And Pacific Islander Alone	4	0.02%

Population By Ethnicity in Jefferson , IA in 2018

Ethnicity	Population	Percentage
White Alone - Non Hispanic	14,740	81.43%
Asian Alone - Non Hispanic	2,046	11.3%
White Alone - Hispanic	494	2.73%
Black or African American Alone - Non Hispanic	405	2.24%
Two Or More Races - Non Hispanic	282	1.56%
American Indian and Alaska Native Alone - Non Hispanic	45	0.25%
Two Or More Races - Hispanic	32	0.18%
Black or African American Alone - Hispanic	29	0.16%
American Indian and Alaska Native Alone - Hispanic	14	0.08%
Asian Alone - Hispanic	11	0.06%
Native Hawaiian And Pacific Islander Alone - Hispanic	2	0.01%
Native Hawaiian And Pacific Islander Alone - Non Hispanic	2	0.01%