Population By Race and Ethnicity in Seneca, OH in 2011

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2011, the 56,526 population of Seneca County, Ohio comprised of 2,532 people who identified as Hispanic (4.48%), and 53,994 people who identified as Non-Hispanic (95.52%).

Race: The White Alone population was the largest racial group in Seneca County, Ohio with a population of 53,701 (95%); Black or African American Alone population was the second largest racial group with a population of 1,372 (2.43%); and Two Or More Races was the third largest racial group with a population of 938 (1.66%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Seneca County, Ohio in 2011, with a population of 51,495 (91.1%); the second largest ethnic group was White Alone - Hispanic with a population of 2,206 (3.9%); and the third largest ethnic group was Black or African American Alone - Non Hispanic with a population of 1,236 (2.19%).

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

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

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Hispanics and Non Hispanics in Seneca, OH in 2011
Total Population:
Race in Seneca, OH in 2011
Total Population:
Ethnicity in Seneca, OH in 2011
Total Population:
Population By Race in Seneca , OH in 2011
Race Population Percentage
Black or African American Alone 1,372 2.43%
White Alone 53,701 95%
American Indian and Alaska Native Alone 127 0.23%
Asian Alone 370 0.66%
Native Hawaiian And Pacific Islander Alone 18 0.03%
Two Or More Races 938 1.66%
Population By Ethnicity in Seneca , OH in 2011
Ethnicity Population Percentage
Black or African American Alone - Hispanic 136 0.24%
White Alone - Hispanic 2,206 3.9%
American Indian and Alaska Native Alone - Hispanic 35 0.06%
Asian Alone - Hispanic 8 0.01%
Native Hawaiian And Pacific Islander Alone - Hispanic 12 0.02%
Two Or More Races - Hispanic 135 0.24%
Black or African American Alone - Non Hispanic 1,236 2.19%
White Alone - Non Hispanic 51,495 91.1%
American Indian and Alaska Native Alone - Non Hispanic 92 0.16%
Asian Alone - Non Hispanic 362 0.64%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 6 0.01%
Two Or More Races - Non Hispanic 803 1.42%