Population By Race and Ethnicity in Plymouth County, IA in 2021

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2021, the 25,714 population of Plymouth County, Iowa comprised of 1,536 people who identified as Hispanic (5.97%), and 24,178 people who identified as Non-Hispanic (94.03%).

Race: The White Alone population was the largest racial group in Plymouth County, Iowa with a population of 24,294 (94.48%); Black or African American Alone population was the second largest racial group with a population of 532 (2.07%); and Two Or More Races was the third largest racial group with a population of 354 (1.38%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Plymouth County, Iowa in 2021, with a population of 22,998 (89.44%); the second largest ethnic group was White Alone - Hispanic with a population of 1,296 (5.04%); and the third largest ethnic group was Black or African American Alone - Non Hispanic with a population of 492 (1.91%).

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 2021
Total Population:
Race in Plymouth County, IA in 2021
Total Population:
Ethnicity in Plymouth County, IA in 2021
Total Population:
Population By Race in Plymouth , IA in 2021
Race Population Percentage
Black or African American Alone 532 2.07%
White Alone 24,294 94.48%
American Indian and Alaska Native Alone 254 0.99%
Asian Alone 167 0.65%
Native Hawaiian And Pacific Islander Alone 113 0.44%
Two Or More Races 354 1.38%
Population By Ethnicity in Plymouth , IA in 2021
Ethnicity Population Percentage
Black or African American Alone - Hispanic 40 0.16%
White Alone - Hispanic 1,296 5.04%
American Indian and Alaska Native Alone - Hispanic 135 0.53%
Asian Alone - Hispanic 7 0.03%
Native Hawaiian And Pacific Islander Alone - Hispanic 13 0.05%
Two Or More Races - Hispanic 45 0.18%
Black or African American Alone - Non Hispanic 492 1.91%
White Alone - Non Hispanic 22,998 89.44%
American Indian and Alaska Native Alone - Non Hispanic 119 0.46%
Asian Alone - Non Hispanic 160 0.62%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 100 0.39%
Two Or More Races - Non Hispanic 309 1.2%