Seneca County, NY — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
33,125
Male
17,132
51.7%
Female
15,993
48.3%
Median Age
42.8 yrs
Avg Household Size
2.3
Foreign Born
2.9%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher17.4%
High School or Higher40.7%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
6.9%
Disability
0.0%
Non-English Home
11.1%
Married
40.0%
Seneca County, NY has a population of 33,125 according to 2023 Census Bureau estimates. The median age is 42.8 years. The largest racial or ethnic group is White at 89.4% of the population. 17.4% of residents hold a bachelor's degree or higher. 2.9% of residents are foreign-born.