Seneca County, Ohio Population 2024

53,988

Seneca County, Ohio's estimated 2024 population is 53,988 with a growth rate of -0.59% in the past year according to the most recent United States census data. Seneca County, Ohio is the 47th largest county in Ohio. The 2010 population was 56,619 and has seen a growth of -4.65% since that time.

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
202952,378-322-0.61%
202852,700-322-0.61%
202753,022-322-0.6%
202653,344-322-0.6%
202553,666-322-0.6%
202453,988-322-0.59%
202354,310-322-0.59%
202254,632-322-0.59%
202154,954-97-0.18%
202055,051-169-0.31%
201955,220-36-0.07%
201855,256-66-0.12%
201755,322-195-0.35%
201655,517-155-0.28%
201555,672-147-0.26%
201455,819-41-0.07%
201355,860-257-0.46%
201256,117-409-0.72%
201156,526-93-0.16%
201056,619
199059,733-2,168-3.5%
198061,9011,2051.99%
197060,6961,3702.31%
196059,3266,34811.98%
195052,9784,4799.24%
194048,4995581.16%
193047,9414,76511.04%
192043,1767551.78%
191042,4211,2583.06%
190041,1632940.72%
189040,8693,92210.62%
188036,9476,12019.85%
187030,827-41-0.13%
186030,8683,76413.89%
185027,1048,97649.51%
184018,12812,969251.39%
18305,159-47,219-90.15%
showing: 37 rows
2024 Growth Rate
-0.59% (-322)
County Website
Seneca County
State
Ohio
County Seat
2010 Population
56,619
Area
551 mi²
Density
98 people/mi²
Growth Since 2010
-4.65% (-2,631)
Founded
April 1, 1824

Seneca County, Ohio Population 2024

Population by Race

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Race
Population
Percentage (of total)
White50,51991.75%
Two or more races1,6503%
Black or African American1,6212.94%
Other race7941.44%
Asian3210.58%
Native American1570.29%
Native Hawaiian or Pacific Islander
showing: 7 rows

White

Two or more races

Black or African American

Other race

Asian

Native American

Native Hawaiian or Pacific Islander

Seneca County, Ohio Population by Race

Seneca County, Ohio Population Pyramid 2024

Seneca County, Ohio Median Age

40.6

Total

39.4

Male

41.8

Female

Seneca County, Ohio Adults

There are 43,161 adults, (10,074 of whom are seniors) in Seneca County, Ohio.

Seneca County, Ohio Age Dependency

66.4

Age Dependency Ratio

30.4

Old Age Dependency Ratio

36

Child Dependency Ratio

Seneca County, Ohio Sex Ratio

Female27,31849.61%
Male27,74450.39%

Seneca County, Ohio Population by Age

Seneca County, Ohio Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All21,9102.387228
Married10,2563.0187.512.5
Non Family7,9461.260.539.5
Female2,4933.1148.651.4
Male1,2153.256535
showing: 5 rows

2.94

Average Family Size

2.38

Average Household Size

72.0%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Seneca County, Ohio Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Seneca County, Ohio Educational Attainment by Sex (over 25)

Seneca County, Ohio Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among white people with a rate of 93.91%.

The highest rate of bachelors degrees is among asian people with a rate of 52.5%.

Seneca County, Ohio Educational Attainment by Race

All

Male

Female

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$41,143

Average Earnings

$48,023

Average Male

$33,490

Average Female

Seneca County, Ohio Earnings by Educational Attainment

Seneca County, Ohio Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Seneca County, Ohio Language

96.76% of Seneca County, Ohio residents speak only English, while 3.24% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 2.02% of the population.

Seneca County, Ohio Language

Seneca County, Ohio Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White46,5495,08010.91%
Black1,22750741.32%
Hispanic2,91829310.04%
Multiple1,55819412.45%
Asian2998127.09%
Other736354.76%
Native1551912.26%
showing: 7 rows

11.63%

Overall Poverty Rate

10.01%

Male Poverty Rate

13.25%

Female Poverty Rate

Poverty in Seneca County, Ohio

The race most likely to be in poverty in Seneca County, Ohio is Black, with 41.32% below the poverty level.

The race least likely to be in poverty in Seneca County, Ohio is Other, with 4.76% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.16%. Among those working part-time, it was 13.36%, and for those that did not work, the poverty rate was 19.8%.

Seneca County, Ohio Poverty

rate

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Rate
Poverty
Less Than 9th Grade23.65%
High School10.2%
Some College8.49%
Bachelors or Greater4.94%
showing: 4 rows

Seneca County, Ohio Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed51.19%
Male Unemployed42.52%
Female Employed6.36%
Male Employed2.77%
showing: 4 rows

Seneca County, Ohio Poverty Rate by Employment Status and Sex

Seneca County, Ohio Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Seneca County, Ohio Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

46.9%

Overall Marriage Rate

47.1%

Male Marriage Rate

46.8%

Female Marriage Rate

Seneca County, Ohio Married by Age and Sex

male

female

Seneca County, Ohio Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 55-64.

Seneca County, Ohio Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Seneca County, Ohio Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

3,140

Number of Veterans

2,967

Male Veterans

173

Female Veterans

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Seneca County, Ohio Veterans by War

count

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Seneca County, Ohio Veterans by Age

count

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Seneca County, Ohio Veterans by Race

Seneca County, Ohio Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

6.52%

Veteran Poverty Rate

30.04%

Veteran Disability Rate

Seneca County, Ohio Veterans by Education

LaborForceParticipation

62.6%

Labor Force Participation

59.9%

Employment Rate

4.2%

Unemployment Rate

Seneca County, Ohio Employment by Age

LaborForceParticipation

Seneca County, Ohio Employment by Race

LaborForceParticipation

Seneca County, Ohio Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

87.82%

Born in Seneca County, Ohio

98.51%

Native Born

1.49%

Foreign Born

0.68%

Non Citizen

0.81%

Naturalized

Place of Birth

98.51% of Seneca County, Ohio residents were born in the United States, with 87.82% having been born in Ohio. 0.68% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Seneca County, Ohio Place of Birth

Sources