Population By Race and Ethnicity in Plymouth County, IA in 2020

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2020, the 25,689 population of Plymouth County, Iowa comprised of 1,487 people who identified as Hispanic (5.79%), and 24,202 people who identified as Non-Hispanic (94.21%).

Race: The White Alone population was the largest racial group in Plymouth County, Iowa with a population of 24,396 (94.97%); Black or African American Alone population was the second largest racial group with a population of 458 (1.78%); and Two Or More Races was the third largest racial group with a population of 340 (1.32%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Plymouth County, Iowa in 2020, with a population of 23,137 (90.07%); the second largest ethnic group was White Alone - Hispanic with a population of 1,259 (4.9%); and the third largest ethnic group was Black or African American Alone - Non Hispanic with a population of 434 (1.69%).

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

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

See this for other years:
Hispanics and Non Hispanics in Plymouth County, IA in 2020
Total Population:
Race in Plymouth County, IA in 2020
Total Population:
Ethnicity in Plymouth County, IA in 2020
Total Population:
Population By Race in Plymouth , IA in 2020
Race Population Percentage
Black or African American Alone 458 1.78%
White Alone 24,396 94.97%
American Indian and Alaska Native Alone 239 0.93%
Asian Alone 167 0.65%
Native Hawaiian And Pacific Islander Alone 89 0.35%
Two Or More Races 340 1.32%
Population By Ethnicity in Plymouth , IA in 2020
Ethnicity Population Percentage
Black or African American Alone - Hispanic 24 0.09%
White Alone - Hispanic 1,259 4.9%
American Indian and Alaska Native Alone - Hispanic 130 0.51%
Asian Alone - Hispanic 6 0.02%
Native Hawaiian And Pacific Islander Alone - Hispanic 14 0.05%
Two Or More Races - Hispanic 54 0.21%
Black or African American Alone - Non Hispanic 434 1.69%
White Alone - Non Hispanic 23,137 90.07%
American Indian and Alaska Native Alone - Non Hispanic 109 0.42%
Asian Alone - Non Hispanic 161 0.63%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 75 0.29%
Two Or More Races - Non Hispanic 286 1.11%