Seneca County, OH Map
Official Census boundary of Seneca County, Ohio (FIPS 39147). Turn on flood zones, contours, land cover and school districts, measure distances, or click any spot to inspect it.
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Seneca County Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
54,770
Households
22,279
Median household income
$66,025
Median age
40.2 years
Median home value
$154,700
Median gross rent
$856/mo
Owner-occupied homes
73.4%
Bachelor's degree or higher
20.6%
Below poverty level
11.9%
Land area
551 sq mi
Population density
99 / sq mi