Seneca County, New York Demographics 2026

Population Overview

Seneca County is located in New York with a total population of 33,125. It is the 57th most populous county out of 62 in New York. The county encompasses 1 Census-designated place.

Age Demographics

The median age in Seneca County is 42.8 years. This is 8% higher than the state median of 39.6 years.

Economy, Income & Housing

The median household income in Seneca County is $66,007. This is 22% lower than the state median of $84,578. Compared to the national median of $78,538, household income here is 16% lower. The poverty rate stands at 13.3%. This is 3% lower than the state poverty rate of 13.7%. The unemployment rate is 4.7%. This is 24% lower than the state rate of 6.2%. The median home value is $142,700. Housing costs are 65% lower than the state median of $403,000. With a home-value-to-income ratio of just 2.2x, Seneca County is one of the most affordable housing markets in the area. 72.0% of occupied housing units are owner-occupied. This homeownership rate is 33% higher than the state average of 54.3%.

Race & Ethnicity

Seneca County has a predominantly White (non-Hispanic) population, comprising 88.1% of all residents. Hispanic or Latino residents account for 4.1%. The White (non-Hispanic) population is significantly higher than the state average (88.1% vs 53.4%). The Black or African American population (3.6%) is well below the state average of 13.6%. The Hispanic or Latino population (4.1%) is well below the state average of 19.6%. The Asian population (0.7%) is well below the state average of 8.8%.

Education

24.1% of residents aged 25 and older hold a bachelor's degree or higher. This is 39% lower than the state rate of 39.6%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 84.6%.