COUNTY · 1990 CENSUS

Seneca County

Ohio · 59,733 residents · 551 sq mi

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The short version

With 59,733 people, Seneca County is a county in Ohio. 10% of adults hold a bachelor's degree or higher. Median home value sits at $47,300. 74% of homes are owner-occupied. Renters pay $322 a month at the median. Median household income is $26,988, under the $30,130 national median.

At a glance

Lower income

below the US median

US median: $30,130

Mid-age

median age 32.6

US median: 33.0

Less educated

10% hold a bachelor's degree

US average: 20%

More affordable

home values down 23%, inflation adjusted

US median home: $93,722

Section 01

Population & growth

Total population

59,733

+2%vs 2000

vs 58,683 in 2000

1990 – 2025

Median age

32.6

−10%vs 2000

vs 36.3 in 2000

US average: 33.0

Land area

551 sq mi

Population, 1990 – 2024

202455K

Age distribution, 1990

Under 57.1%(4,252)

US avg: 7.3%

5 to 97.8%(4,680)

US avg: 7.3%

10 to 148.7%(5,206)

US avg: 6.9%

15 to 198.2%(4,909)

US avg: 7.1%

20 to 246.7%(4,020)

US avg: 7.5%

25 to 3415.3%(9,128)

US avg: 17.5%

35 to 4414.3%(8,562)

US avg: 15.1%

45 to 549.4%(5,604)

US avg: 10.2%

55 to 649%(5,364)

US avg: 8.5%

65 to 747.7%(4,617)

US avg: 7.3%

75 to 844.3%(2,547)

US avg: 4%

85 and over1.4%(844)

US avg: 1.2%

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Section 02

Income & economy

Median household income

$26,988

−7%inflation adjusted, since 2000

vs $38,037 in 2000

US average: $30,130

1990 – 2024

Per capita income

$11,226

−34%vs 2000

vs $17,027 in 2000

US average: $14,340

Poverty rate

10.8%

+1.8 ptsvs 2000

vs 9.0% in 2000

US average: 13.2%

Section 03

Housing

Median home value

$47,300

−23%inflation adjusted, since 2000

vs $81,100 in 2000

US average: $93,722

1990 – 2024

Median gross rent

$322

−2%inflation adjusted, since 2000

vs $433 in 2000

US average: $450

Owner-occupied

74.0%

−1.2 ptsvs 2000

vs 75.1% in 2000

26.0% rent

Section 04

Race & ethnicity

2000

White, non-Hispanic93.4%(54,821)

Black1.7%(1,016)

Hispanic / Latino3.4%(1,972)

Asian0.4%(218)

Other0%

1990

White, non-Hispanic95.9%(57,278)

Black1.8%(1,058)

Hispanic / Latino2.9%(1,749)

Asian0.5%(311)

Other1.8%(1,086)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Detailed origin tables are available for 2024; showing 2024 data.

Hispanic origin

Mexican4.4%(2,396)

Puerto Rican0.7%(365)

Central American0.2%(90)

South American0.1%(75)

Spaniard0.1%(69)

Colombian0.1%(58)

Guatemalan0.1%(52)

Honduran0%(26)

Ecuadorian0%(17)

Cuban0%(13)

Nicaraguan0%(12)

Asian origin

Korean0.2%(110)

Asian Indian0.2%(110)

Filipino0%(23)

Mongolian0%(18)

Japanese0%(13)

Laotian0%(9)

Chinese0%(5)

Pacific Islander origin

Native Hawaiian0%(9)

Ancestry

German38.6%(21,154)

Irish10.8%(5,897)

English10.1%(5,536)

American6%(3,268)

Italian4.3%(2,343)

French1.8%(979)

Polish1.7%(910)

Scottish1.2%(632)

Dutch0.7%(368)

Welsh0.5%(275)

Scotch-Irish0.5%(266)

Subsaharan African0.4%(225)

+ 31 more ancestry groups with data

Hungarian0.4%(194)

Swiss0.3%(183)

French Canadian0.3%(172)

British0.3%(141)

Nigerian0.3%(137)

Norwegian0.2%(123)

Swedish0.2%(97)

Belgian0.2%(88)

Arab0.2%(83)

Greek0.1%(82)

Austrian0.1%(61)

Palestinian0.1%(58)

Finnish0.1%(57)

Canadian0.1%(48)

Russian0.1%(47)

Romanian0.1%(42)

Kenyan0.1%(41)

Armenian0.1%(40)

Bulgarian0.1%(39)

Portuguese0.1%(39)

Lithuanian0.1%(32)

Czech0.1%(31)

Lebanese0%(25)

Ukrainian0%(21)

Slovak0%(20)

Danish0%(13)

West Indian0%(9)

Jamaican0%(9)

Slovene0%(7)

Croatian0%(6)

Brazilian0%(1)

RANKED:Largest German population · Largest Irish population · Largest English population · Largest American population · Largest Mexican population

Section 05

Education

Bachelor's degree or higher

10.1%

−2.4 ptsvs 2000

vs 12.5% in 2000

US average: 20.3%

High school or higher

75.3%

−7.8 ptsvs 2000

vs 83.1% in 2000

US average: 75.2%

Graduate degree

3.0%

−1.2 ptsvs 2000

vs 4.3% in 2000

US average: 7.1%

Section 06

Commute & transportation

Average commute

19.1 min

+39%vs 2000

vs 13.8 min in 2000

US average: 21.9

Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status (2024)

Men 15+

Never married37.5%(8,482)

Married49.4%(11,164)

Widowed2.9%(659)

Divorced10.1%(2,292)

Women 15+

Never married28.2%(6,406)

Married48.9%(11,086)

Widowed8.8%(1,995)

Divorced14.1%(3,195)

SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024

Section 09

Health coverage

Showing 2024 (the nearest year with coverage data).

Uninsured

5.3%

−5.7 ptssince 2013

from 11.0% in 2013

US average: 8.4%

Employer-based

56.8%

−1.8 ptssince 2020

from 58.6% in 2020

US average: 54.8%

Direct-purchase

13.6%

−0.7 ptssince 2020

from 14.3% in 2020

US average: 13.8%

Medicare

20.6%

+1.4 ptssince 2020

from 19.2% in 2020

US average: 18.4%

Medicaid

22.0%

+1.3 ptssince 2020

from 20.7% in 2020

US average: 20.9%

VA health care

1.9%

−0.7 ptssince 2020

from 2.6% in 2020

US average: 2.2%

Any private

68.5%

−1.8 ptssince 2020

from 70.3% in 2020

US average: 67.1%

Any public

40.0%

+1.9 ptssince 2020

from 38.1% in 2020

US average: 36.7%

Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.

Section 09 · Service history

Veterans

Veterans by period of service, 2024

Gulf War (2001 or later)19.1%(555)

US avg: 26.4%

Gulf War (1990s)17.5%(509)

US avg: 24.3%

Vietnam era39.7%(1,155)

US avg: 33.1%

Korean War3%(86)

US avg: 4.5%

World War II0.1%(3)

US avg: 1%

Share of the 2,912 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.

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