Gillespie County, Texas Demographics 2026

Population Overview

Gillespie County is located in Texas with a total population of 27,202. It is the 99th most populous county out of 254 in Texas.

Age Demographics

The median age in Gillespie County is 50.5 years. This is 42% higher than the state median of 35.5 years. 13.7% 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 Gillespie County is $67,799. This is 11% lower than the state median of $76,292. Compared to the national median of $78,538, household income here is 14% lower. The poverty rate stands at 9.5%. This is 31% lower than the state poverty rate of 13.8%. The unemployment rate is 3.8%. This is 25% lower than the state rate of 5.1%. The median home value is $432,300. Housing costs are 66% higher than the state median of $260,400. The home-value-to-income ratio of 6.4x suggests that housing affordability is a significant concern for many residents. 71.0% of occupied housing units are owner-occupied. This homeownership rate is 14% higher than the state average of 62.6%.

Race & Ethnicity

The largest racial or ethnic group in Gillespie County is White (non-Hispanic), making up 74.2% of the population. Hispanic or Latino residents account for 22.4%. The White (non-Hispanic) population is significantly higher than the state average (74.2% vs 39.9%). The Black or African American population (0.2%) is well below the state average of 11.9%. The Asian population (0.3%) is well below the state average of 5.3%.

Education

35.3% of residents aged 25 and older hold a bachelor's degree or higher. This places Gillespie County in the top 10% of all cities in the state for educational attainment. This is 7% higher than the state rate of 33.1%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 89.3%.