Seneca County, New York Demographics 2026

Name: Seneca County, New York Demographics
Creator: U.S. Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

Seneca County, New York has a population of 32,920, the 57th most populous county in New York. The median household income is $68,089 and the median home value is $155,400. The poverty rate is 13.5%.

Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes

Seneca County Quick Facts

Population 32,920

Median Household Income $68,089

Median Home Value $155,400

Poverty Rate 13.5%

Unemployment Rate 4.5%

Median Age 43.0 years

Homeownership Rate 71.0%

Affordability Ratio 2.3x

Bachelor's Degree+ 25.2%

High School Graduation 84.7%

Cities/Places 6

Population 32,920 57th of 62

Median Income $68,089 21% lower than state

Poverty Rate 13.5%

Unemployment 4.5%

How Seneca County Changed

Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.

Metric	2019–2023	2020–2024	Change
Population	33,125	32,920	-0.6%
Median household income	$66,007	$68,089	+3.2%
Median home value	$142,700	$155,400	+8.9%

Median Household Income

Seneca

$68,089

$85,974

National

$80,734

Median Home Value

Seneca

$155,400

$423,800

National

$332,700

Economy & Housing

Household Income Distribution

Under $25K 16.2%

$25K-$50K 21.6%

$50K-$100K 31.9%

$100K+ 30.3%

Detailed income brackets

Under $10K

4.5%

$10K-$15K

4.3%

$15K-$20K

4.5%

$20K-$25K

2.9%

$25K-$30K

4.0%

$30K-$35K

4.9%

$35K-$40K

4.0%

$40K-$45K

4.2%

$45K-$50K

4.5%

$50K-$60K

7.2%

$60K-$75K

9.8%

$75K-$100K

14.8%

$100K-$125K

10.7%

$125K-$150K

6.6%

$150K-$200K

6.9%

$200K+

6.1%

Employment

4.5% Unemployment Rate State: 6.4%|National: 5.2%

56.3% Labor Force Participation

Housing Overview

Owner 71.0%

Renter 29.0%

Affordability Index Very Affordable

2.3x home value to income ratio

Median gross rent $957/mo 16.9% of median household income annually

People & Demographics

Age Distribution

Under 18

20.3%

18-34

19.9%

35-54

23.8%

55-74

27.4%

75+

8.6%

Race & Ethnicity

Diversity Index

Very Low Diversity

A less diverse community where one racial or ethnic group represents a large majority.

State average: 65 | National average: 61

Education

Educational Attainment (Adults 25+)

Cities & Places in Seneca County

City	Population	Median Income	Poverty	Home Value
Seneca Falls	6,956	$59,864	15.9%	$123,700
Waterloo	4,605	$51,642	11.7%	$114,300
Interlaken	493	$59,028	11.4%	$143,900
Ovid	402	$79,583	8.2%	$121,400
Lodi	307	$54,125	9.2%	$114,100
Romulus	265	$45,417	33.0%	$89,200

Explore New York Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Population Overview

Seneca County is located in New York with a total population of 32,920. It is the 57th most populous county out of 62 in New York. The county encompasses 6 Census-designated places.

Age Demographics

The median age in Seneca County is 43.0 years. This is 8% higher than the state median of 39.8 years.

Economy, Income & Housing

The median household income in Seneca County is $68,089. This is 21% lower than the state median of $85,974. It is also 16% lower than the national median of $80,734. The poverty rate stands at 13.5%. This is 4% lower than the state poverty rate of 14.0%. The unemployment rate is 4.5%. This is 29% lower than the state rate of 6.4%. The median home value is $155,400. Housing costs are 63% lower than the state median of $423,800. With a home-value-to-income ratio of just 2.3x, Seneca County is one of the most affordable housing markets in the area. 71.0% of occupied housing units are owner-occupied. This homeownership rate is 31% higher than the state average of 54.4%.

Race & Ethnicity

Seneca County has a predominantly White (non-Hispanic) population, comprising 87.3% of all residents. Hispanic or Latino residents account for 4.4%. The White (non-Hispanic) population is significantly higher than the state average (87.3% vs 52.8%). The Black or African American population (3.5%) is well below the state average of 13.4%. The Hispanic or Latino population (4.4%) is well below the state average of 19.8%. The Asian population (0.6%) is well below the state average of 9.0%.

Education

25.2% of residents aged 25 and older hold a bachelor's degree or higher. This is 37% lower than the state rate of 40.2%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 84.7%.

Data Sources & Methodology

All figures for Seneca County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against New York and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.

Frequently Asked Questions

What is the population of Seneca County, New York?

Seneca County has a population of 32,920, making it the 57th most populous county in New York.

What is the median income in Seneca County?

The median household income in Seneca County is $68,089 with a poverty rate of 13.5%.

How many cities are in Seneca County, New York?

Seneca County contains 6 Census-designated places.