Hamilton County, New York Demographics 2026

Population Overview

Hamilton County is located in New York with a total population of 5,102. It is the 62nd most populous county out of 62 in New York. The county encompasses 3 Census-designated places.

Age Demographics

The median age in Hamilton County is 57.2 years. This is 44% higher than the state median of 39.6 years. Only 13.1% of residents are under 18, indicating fewer families with children. 11.5% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Hamilton County is $68,950. This is 18% lower than the state median of $84,578. It is also 12% lower than the national median of $78,538. The poverty rate stands at 10.0%. This is 27% lower than the state poverty rate of 13.7%. The unemployment rate is 5.4%. This is 13% lower than the state rate of 6.2%. The median home value is $242,000. Housing costs are 40% lower than the state median of $403,000. The home-value-to-income ratio is 3.5x. 82.5% of occupied housing units are owner-occupied. This homeownership rate is 52% higher than the state average of 54.3%.

Race & Ethnicity

Hamilton County has a predominantly White (non-Hispanic) population, comprising 91.5% of all residents. Hispanic or Latino residents account for 2.0%. The White (non-Hispanic) population is significantly higher than the state average (91.5% vs 53.4%). The Black or African American population (0.9%) is well below the state average of 13.6%. The Hispanic or Latino population (2.0%) is well below the state average of 19.6%. The Asian population (0.4%) is well below the state average of 8.8%.

Education

26.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 32% 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 89.3%.

Data Sources & Methodology

All figures for Hamilton County come from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023), 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.