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.

Data Source: US Census Bureau (Vintage).

See this for other years:

Hispanics and Non Hispanics in Jefferson County, IA in 2015

Total Population:17,913

Non Hispanic (97.1%)

Hispanic (2.9%)

Race in Jefferson County, IA in 2015

Total Population:17,913

White Alone (83.52%)

Asian Alone (12.26%)

Black or African American Alone (2.21%)

Two or more races (1.66%)

American Indian and Alaska Native Alone (0.28%)

Native Hawaiian And Pacific Islander Alone (0.06%)

Ethnicity in Jefferson County, IA in 2015

Total Population:17,913

Non-Hispanic White Alone (81.04%)

Non-Hispanic Asian Alone (12.19%)

Hispanic White Alone (2.48%)

Non-Hispanic Black or African American Alone (2.08%)

Non-Hispanic Two or more races (1.52%)

All Other Ethnicities (0.69%)

Population By Race in Jefferson , IA in 2015

Race	Population	Percentage
White Alone	14,961	83.52%
Asian Alone	2,196	12.26%
Black or African American Alone	396	2.21%
Two Or More Races	298	1.66%
American Indian and Alaska Native Alone	51	0.28%
Native Hawaiian And Pacific Islander Alone	11	0.06%

Population By Ethnicity in Jefferson , IA in 2015

Ethnicity	Population	Percentage
White Alone - Non Hispanic	14,517	81.04%
Asian Alone - Non Hispanic	2,183	12.19%
White Alone - Hispanic	444	2.48%
Black or African American Alone - Non Hispanic	373	2.08%
Two Or More Races - Non Hispanic	272	1.52%
American Indian and Alaska Native Alone - Non Hispanic	39	0.22%
Two Or More Races - Hispanic	26	0.14%
Black or African American Alone - Hispanic	23	0.13%
Asian Alone - Hispanic	13	0.07%
American Indian and Alaska Native Alone - Hispanic	12	0.07%
Native Hawaiian And Pacific Islander Alone - Non Hispanic	9	0.05%
Native Hawaiian And Pacific Islander Alone - Hispanic	2	0.01%