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COUNTY · 2000 CENSUS

Seneca County

New York · 33,342 residents · 323.698 sq mi
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The short version

Seneca County has lower-than-average household income, with a median household income of $37,140. Population has held roughly steady since 1990. Median home value is $70,400.

At a glance
Lower income
below the US median
US median: $42,589
Older
median age 38.2
US median: 35.2
Less educated
17% hold a bachelor's degree
US average: 24%
More affordable
home values down 8%, inflation adjusted
US median home: $120,530
Section 01

Population & growth

33,342
−1%since 1990
from 33,683 in 1990
1990 – 2025
103 / sq mi
−1%since 1990
from 104 / sq mi in 1990
US average: 242
38.2
+10%since 1990
from 34.7 in 1990
US average: 35.2
Population, 19902024
33K33K34K35K36K1990201020202024Seneca County
202433K
1990201020202024
Section 02

Income & economy

$37,140
−1%inflation adjusted, since 1990
from $28,604 in 1990
US average: $42,589
1990 – 2024
$17,630
+42%since 1990
from $12,408 in 1990
US average: $21,522
11.5%
+1.1 ptssince 1990
from 10.4% in 1990
US average: 12.4%
Section 03

Housing

$70,400
−8%inflation adjusted, since 1990
from $57,900 in 1990
US average: $120,530
1990 – 2024
$521
Unchangedinflation adjusted, since 1990
from $396 in 1990
US average: $602
73.8%
−0.5 ptssince 1990
from 74.3% in 1990
26.2% rent
1.9
−6%since 1990
from 2.0 in 1990
1990 – 2024
RELATED:See current rent listings in Seneca County on RentDataNow
Section 04

Race & ethnicity

1990
White, non-Hispanic97%(32,676)
Black1.7%(585)
Hispanic / Latino1%(333)
Asian0.7%(238)
Diversity Score9.6%(3,232)
2000
White, non-Hispanic94%(31,338)
Black2.2%(720)
Hispanic / Latino2%(659)
Asian0.7%(225)
Diversity Score11.8%(3,921)
12
+23%since 1990
from 10 in 1990
1990 – 2024
Section 05

Education

17.5%
+3.3 ptssince 1990
from 14.2% in 1990
US average: 24.4%
High school or higher
79.1%
+2.9 ptssince 1990
from 76.2% in 1990
US average: 80.3%
7.0%
+1.5 ptssince 1990
from 5.5% in 1990
US average: 8.8%
Section 06

Commute & transportation

16.5 min
−19%since 1990
from 20.4 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, New York?

Seneca County, New York has about 33,342 residents according to the 2000 Census.

What is the median household income in Seneca County, New York?

The typical household in Seneca County, New York earns about $37,140 a year. Half of households make more than that, and half make less.

Is Seneca County, New York expensive?

In Seneca County, New York, the median home is worth about $70,400, and the typical rent is about $521 a month.

How educated are people in Seneca County, New York?

About 17.5% of adults age 25 and over in Seneca County, New York hold a bachelor's degree or higher.

What is the poverty rate in Seneca County, New York?

About 11.5% of people in Seneca County, New York live below the federal poverty line.

Has Seneca County, New York grown since 1990?

Yes, Seneca County, New York has shrunk since 1990. The population has lost about 341 residents, a change of about -1 percent over that period.

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

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