United States › New York › Seneca County COUNTY
Seneca County New York · 32,883 residents (2025 est.) · 324 sq mi
Time machine
COMPARE TO 1990 Census 2000 Census 2009 ACS 2010 ACS 2011 ACS 2012 ACS 2013 ACS 2014 ACS 2015 ACS 2016 ACS 2017 ACS 2018 ACS 2019 ACS 2020 ACS 2021 ACS 2022 ACS 2023 ACS
The short version
With 32,920 people, Seneca County is a county in New York. Home values have more than doubled since 2000, reaching $155,400. 25% of adults hold a bachelor's degree or higher. At a median age of 43.0, this is an older place than the country as a whole. The foreign-born share is 3%. Households here earn about 21% less than in New York as a whole.
At a glance
Lower income
below the US median
US median: $82,259
Older
median age 43.0
US median: 38.9
Less educated
25% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Section 01
Population & growth from 33,342 in 2000
32,883 in 2025 (Census Bureau estimate)
from 106 / sq mi in 2009
US average: 281
from 38.2 in 2000
US average: 38.9
Population, 1990 – 2024
33K 33K 34K 35K 36K 1990 2000 2010 2020 2024 Seneca County Age distribution, 2024
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $68,089
+1%inflation adjusted, since 2000
from $37,140 in 2000
US average: $82,259
from $17,630 in 2000
US average: $44,673
Households earning $100K+
from 24.4% in 2009
US average: 53.3%
from 11.5% in 2000
US average: 12.5%
from 0.398 in 2010
US average: 0.476
Workforce by industry, 2024
Agriculture, forestry, fishing 4.5%
Public administration 3.3%
Professional, scientific, technical 3.1%
Arts, entertainment, food 2.3%
Transportation & warehousing 2.2%
Education & health services 0.5%
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$155,400
+21%inflation adjusted, since 2000
from $70,400 in 2000
US average: $376,019
$957
+1%inflation adjusted, since 2000
from $521 in 2000
US average: $1,442
from 73.8% in 2000
29.0% rent
from 18.1% in 2009
US average: 10.0%
2.28 people
−10%since 2009
from 2.53 people in 2009
US average: 2.54
from 28.5% in 2009
US average: 22.9%
from 44.0% in 2009
US average: 47.4%
from 1.9 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04
Race & ethnicity 2000
White, non-Hispanic 94%(31,338)
2024
White, non-Hispanic 87.3%(28,731)
Hispanic / Latino 4.4%(1,436)
from 23 in 2009
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
from 30 in 2020
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 32 more ancestry groups with data from 17.5% in 2000
US average: 35.6%
High school or higher
from 79.1% in 2000
US average: 89.6%
from 7.0% in 2000
US average: 14.0%
Section 06
Commute & transportation from 16.5 min in 2000
US average: 26.5
from 82.2% in 2009
US average: 68.9%
from 9.4% in 2009
US average: 8.5%
from 0.9% in 2009
US average: 3.2%
from 3.6% in 2009
US average: 15.0%
from 3.1% in 2009
US average: 2.4%
from 0.1% in 2009
US average: 0.4%
from 5.0% in 2009
US average: 8.3%
Section 07
Work & employment from 5.9% in 2011
US average: 5.2%
from 57.2% in 2011
US average: 63.5%
Women 20-64 in the labor force
from 75.4% in 2020
US average: 74.6%
from 16.9% in 2009
US average: 13.1%
from 30.6% in 2009
US average: 42.5%
Section 08
People & community from 2.7% in 2009
US average: 14.1%
from 11.1% in 2009
US average: 6.2%
from 14.7% in 2012
US average: 13.3%
from 11.7% in 2013
US average: 8.4%
from 75.4% in 2017
US average: 91.0%
Computer in household
from 89.6% in 2020
US average: 95.5%
from 86.4% in 2020
US average: 87.7%
from 93.8% in 2016
US average: 77.7%
from 2.3% in 2016
US average: 13.6%
Marital status
Men 15+
Never married 38.1%(5,375)
Women 15+
Never married 27.7%(3,672)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 11.7% in 2013
US average: 8.4%
from 55.5% in 2020
US average: 54.8%
Direct-purchase
from 17.0% in 2020
US average: 13.8%
from 23.4% in 2020
US average: 18.4%
from 22.5% in 2020
US average: 20.9%
VA health care
from 2.5% in 2020
US average: 2.2%
Any private
from 69.5% in 2020
US average: 67.1%
Any public
from 41.7% 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) 21.9%(441)
Gulf War (1990s) 15.3%(308)
Share of the 2,013 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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Drill deeper
Places similar to Seneca County Head to head
Compare Seneca County to nearby counties SENECA COUNTY VS
Yates County
Income $69,701 +2%
Home value $184,700 +19%
Population 24,547 −25%
SEE FULL COMPARISON →
SENECA COUNTY VS
Cayuga County
Income $67,904 same
Home value $171,000 +10%
Population 74,365 +126%
SEE FULL COMPARISON →
SENECA COUNTY VS
Ontario County
Income $82,324 +21%
Home value $222,900 +43%
Population 113,130 +244%
SEE FULL COMPARISON →
SENECA COUNTY VS
Schuyler County
Income $67,663 −1%
Home value $171,800 +11%
Population 16,924 −49%
SEE FULL COMPARISON →
Frequently asked
How many people live in Seneca County, New York? Seneca County, New York has about 32,920 residents according to the 2024 American Community Survey.
What is the median household income in Seneca County, New York? The typical household in Seneca County, New York earns about $68,089 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 $155,400, and the typical rent is about $957 a month.
How educated are people in Seneca County, New York? About 25.2% 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 13.5% 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 763 residents, a change of about -2 percent over that period.
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