Seneca County, Ohio demographics
Population: 55,166
Median age: 40.5
Median household income: 56,043
Demographics, population, home values, social and economic characteristics of Seneca County, Ohio.
Population
| 2021 | 55,166 |
| 2020 | 55,251 |
| 2019 | 55,351 |
| 2018 | 55,475 |
| 2017 | 55,549 |
| 2016 | 55,711 |
| 2015 | 55,929 |
| 2014 | 56,100 |
| 2013 | 56,376 |
| 2012 | 56,630 |
| 2011 | 56,901 |
| 2010 | 57,091 |
| 2009 | 56,711 |
Seneca County, OH cities
Attica village - 727
Bascom CDP - 155
Bettsville village - 621
Bloomville village - 1,006
Flat Rock CDP - 252
Fort Seneca CDP - 70
Fostoria city - 12,785
Green Springs village - 1,334
Kansas CDP - 156
McCutchenville CDP - 200
Melmore CDP - 57
New Riegel village - 337
Old Fort CDP - 167
Republic village - 609
Tiffin city - 17,882
Census data for Seneca County, Ohio
Demographic and housing estimates in Seneca County, Ohio
| Total population | 55,166 |
| Male | 27,771 |
| Female | 27,395 |
| Total population | 55,166 |
| Under 5 years | 2,975 |
| 5 to 9 years | 3,299 |
| 10 to 14 years | 3,534 |
| 15 to 19 years | 4,389 |
| 20 to 24 years | 3,651 |
| 25 to 34 years | 6,422 |
| 35 to 44 years | 6,487 |
| 45 to 54 years | 6,613 |
| 55 to 59 years | 4,134 |
| 60 to 64 years | 3,822 |
| 65 to 74 years | 5,894 |
| 75 to 84 years | 2,681 |
| 85 years and over | 1,265 |
| Median age (years) | 40.5 |
| Under 18 years | 12,147 |
| 16 years and over | 44,662 |
| 18 years and over | 43,019 |
| 21 years and over | 40,087 |
| 62 years and over | 12,019 |
| 65 years and over | 9,840 |
| Total population | 55,166 |
| One race | 53,750 |
| White | 50,775 |
| Black or African American | 1,760 |
| American Indian and Alaska Native | 214 |
| Asian | 310 |
| Native Hawaiian and Other Pacific Islander | 0 |
| Some other race | 691 |
| Two or more races | 1,416 |
| Citizen, VOTING AGE 18 and over population | 42,667 |
| Male Citizen, VOTING AGE 18 and over population | 21,325 |
| Female Citizen, VOTING AGE 18 and over population | 21,342 |
Social characteristics in Seneca County, Ohio
| Total households | 21,862 |
| Family households (families) | 10,424 |
| Married-couple family | 1,976 |
| Male householder, no wife present, family | 4,397 |
| Female householder, no husband present, family | 3,362 |
| Nonfamily households | 5,065 |
| Average household size | 6,876 |
| Average family size | 2.38 |
Economic characteristics in Seneca County, Ohio
| Total households | 21,862 |
| Less than $10,000 | 1,163 |
| $10,000 to $14,999 | 863 |
| $15,000 to $24,999 | 2,048 |
| $25,000 to $34,999 | 2,250 |
| $35,000 to $49,999 | 3,328 |
| $50,000 to $74,999 | 4,439 |
| $75,000 to $99,999 | 3,144 |
| $100,000 to $149,999 | 3,311 |
| $150,000 to $199,999 | 798 |
| $200,000 or more | 518 |
| Median household income (dollars) | 56,043 |
Housing characteristics in Seneca County, Ohio
| Total housing units | 23,946 |
| Occupied housing units | 21,862 |
| Vacant housing units | 2,084 |
| Total housing units | 23,946 |
| 1-unit, detached | 18,824 |
| 1-unit, attached | 593 |
| 2 units | 909 |
| 3 or 4 units | 1,023 |
| 5 to 9 units | 747 |
| 10 to 19 units | 160 |
| 20 or more units | 677 |
| Mobile home | 1,013 |
| Boat, RV, van, etc. | 0 |
| Total housing units | 23,946 |
| Built 2014 or later | 10 |
| Built 2010 to 2013 | 391 |
| Built 2000 to 2009 | 1,297 |
| Built 1990 to 1999 | 2,247 |
| Built 1980 to 1989 | 1,722 |
| Built 1970 to 1979 | 3,059 |
| Built 1960 to 1969 | 2,897 |
| Built 1950 to 1959 | 2,599 |
| Built 1940 to 1949 | 1,071 |
| Built 1939 or earlier | 8,653 |
| Total housing units | 23,946 |
| 1 room | 411 |
| 2 rooms | 549 |
| 3 rooms | 1,053 |
| 4 rooms | 2,282 |
| 5 rooms | 3,969 |
| 6 rooms | 5,262 |
| 7 rooms | 4,281 |
| 8 rooms | 2,791 |
| 9 rooms or more | 3,348 |
| Median rooms | 6.2 |
| Total housing units | 23,946 |
| No bedroom | 435 |
| 1 bedroom | 2,000 |
| 2 bedrooms | 5,571 |
| 3 bedrooms | 11,318 |
| 4 bedrooms | 3,767 |
| 5 or more bedrooms | 855 |
| Occupied housing units | 21,862 |
| Owner-occupied | 15,868 |
| Renter-occupied | 5,994 |
| Average household size of owner-occupied unit | 2.43 |
| Average household size of renter-occupied unit | 2.25 |
| Occupied housing units | 21,862 |
| Moved in 2017 or later | 1,432 |
| Moved in 2015 to 2016 | 5,017 |
| Moved in 2010 to 2014 | 3,669 |
| Moved in 2000 to 2009 | 4,476 |
| Moved in 1990 to 1999 | 2,933 |
| Moved in 1989 and earlier | 4,335 |
| Owner-occupied units | 15,868 |
| Less than $50,000 | 1,750 |
| $50,000 to $99,999 | 5,112 |
| $100,000 to $149,999 | 3,889 |
| $150,000 to $199,999 | 2,571 |
| $200,000 to $299,999 | 1,631 |
| $300,000 to $499,999 | 786 |
| $500,000 to $999,999 | 92 |
| $1,000,000 or more | 37 |
| Median (dollars) | 113,000 |
| Owner-occupied units | 15,868 |
| Housing units with a mortgage | 8,624 |
| Housing units without a mortgage | 7,244 |
| Occupied units paying rent | 5,472 |
| Less than $500 | 844 |
| $500 to $999 | 3,902 |
| $1,000 to $1,499 | 677 |
| $1,500 to $1,999 | 26 |
| $2,000 to $2,499 | 14 |
| $2,500 to $2,999 | 0 |
| $3,000 or more | 9 |
| Median (dollars) | 740 |
| No rent paid | 522 |
Demographic data for Seneca County, OH and each city in the county. Lists of cities by population, wealth and poverty in Seneca County, OH.
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