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COUNTY · 2000 CENSUS

Seneca County

Ohio · 58,683 residents · 551.026 sq mi
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The short version

Seneca County has lower-than-average household income, with a median household income of $38,037. Population has held roughly steady since 1990. 12% of adults hold a bachelor's degree or higher, below the national rate of 24%. Median home value has risen by half since 1990, reaching $81,100.

At a glance
Lower income
below the US median
US median: $42,589
Mid-age
median age 36.3
US median: 35.2
Less educated
12% hold a bachelor's degree
US average: 24%
Less affordable
home values up 30%, inflation adjusted
US median home: $120,530
Section 01

Population & growth

58,683
−2%since 1990
from 59,733 in 1990
1990 – 2025
106 / sq mi
−2%since 1990
from 108 / sq mi in 1990
US average: 242
36.3
+11%since 1990
from 32.6 in 1990
US average: 35.2
Population, 19902024
54K56K57K59K60K1990201020202024Seneca County
202455K
1990201020202024
Section 02

Income & economy

$38,037
+7%inflation adjusted, since 1990
from $26,988 in 1990
US average: $42,589
1990 – 2024
$17,027
+52%since 1990
from $11,226 in 1990
US average: $21,522
9.0%
−1.8 ptssince 1990
from 10.8% in 1990
US average: 12.4%
Section 03

Housing

$81,100
+30%inflation adjusted, since 1990
from $47,300 in 1990
US average: $120,530
1990 – 2024
$433
+2%inflation adjusted, since 1990
from $322 in 1990
US average: $602
75.1%
+1.2 ptssince 1990
from 74.0% in 1990
24.9% rent
2.1
+22%since 1990
from 1.8 in 1990
1990 – 2024
RELATED:See current rent listings in Seneca County on RentDataNow
Section 04

Race & ethnicity

1990
White, non-Hispanic95.9%(57,278)
Black1.8%(1,058)
Hispanic / Latino2.9%(1,749)
Asian0.5%(311)
Diversity Score16.3%(9,754)
2000
White, non-Hispanic93.4%(54,821)
Black1.7%(1,016)
Hispanic / Latino3.4%(1,972)
Asian0.4%(218)
Diversity Score13.2%(7,773)
13
−19%since 1990
from 16 in 1990
1990 – 2024
Section 05

Education

12.5%
+2.4 ptssince 1990
from 10.1% in 1990
US average: 24.4%
High school or higher
83.1%
+7.8 ptssince 1990
from 75.3% in 1990
US average: 80.3%
4.3%
+1.2 ptssince 1990
from 3.0% in 1990
US average: 8.8%
Section 06

Commute & transportation

13.8 min
−28%since 1990
from 19.1 min in 1990
US average: 17.6
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

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Frequently asked

How many people live in Seneca County, Ohio?

Seneca County, Ohio has about 58,683 residents according to the 2000 Census.

What is the median household income in Seneca County, Ohio?

The typical household in Seneca County, Ohio earns about $38,037 a year. Half of households make more than that, and half make less.

Is Seneca County, Ohio expensive?

In Seneca County, Ohio, the median home is worth about $81,100, and the typical rent is about $433 a month.

How educated are people in Seneca County, Ohio?

About 12.5% of adults age 25 and over in Seneca County, Ohio hold a bachelor's degree or higher.

What is the poverty rate in Seneca County, Ohio?

About 9.0% of people in Seneca County, Ohio live below the federal poverty line.

Has Seneca County, Ohio grown since 1990?

Yes, Seneca County, Ohio has shrunk since 1990. The population has lost about 1,050 residents, a change of about -2 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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