Hamilton County, Kansas Demographics 2026

Population Overview

Hamilton County is located in Kansas with a total population of 2,471. It is the 93rd most populous county out of 105 in Kansas. The county encompasses 2 Census-designated places.

Age Demographics

The median age in Hamilton County is 32.1 years. This is 14% lower than the state median of 37.4 years. With 33.8% of the population under 18, Hamilton County has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Hamilton County is $70,250. This is 5% lower than the state median of $74,275. It is also 13% lower than the national median of $80,734. The poverty rate stands at 7.0%. This is 38% lower than the state poverty rate of 11.3%. The unemployment rate is 3.1%. This is 22% lower than the state rate of 3.9%. The median home value is $115,800. Housing costs are 47% lower than the state median of $217,200. With a home-value-to-income ratio of just 1.6x, Hamilton County is one of the most affordable housing markets in the area. 77.1% of occupied housing units are owner-occupied. This homeownership rate is 15% higher than the state average of 67.2%.

Race & Ethnicity

The largest racial or ethnic group in Hamilton County is White (non-Hispanic), making up 54.3% of the population. Hispanic or Latino residents account for 44.0%. The Black or African American population (0.0%) is well below the state average of 5.1%. The Hispanic or Latino population is significantly higher than the state average (44.0% vs 13.6%).

Education

20.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 42% lower than the state rate of 35.6%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 79.9%.

Data Sources & Methodology

All figures for Hamilton County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Kansas 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.