How many people live in Gillespie County, TX?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 28,200 people living in Gillespie County, TX. That makes Gillespie County the 99th-most populous county in Texas. It is home to 0.09% of people living in the state.
28.2K
population of Gillespie County, TX (2024)
0.09%
County share of the Texas population (2024)
About 28,200 people lived in Gillespie County, TX in 2024.
Population estimates, 2000–2024
What are Gillespie County, TX’s age demographics?
About 8,700 Gillespie County residents are aged 65 and older in 2024. That represents 31% of its population. For comparison, the age group represents 14% of Texas’s population and 18% in the US overall.
Another 5,500 Gillespie County residents, or 19.4% of the population, were children under 18. For comparison, the age group represents 24.6% of Texas’s population and 21.6% in the US overall.
A higher share of Gillespie County, TX's population is aged 65 or older than the US as a whole.
Population estimates by age group, (2024)
What are Gillespie County, TX’s racial and ethnic demographics?
Non-Hispanic white residents make up 73.1% of the Gillespie County, TX population, higher than the national share of 57.5%. Gillespie County, TX also has a larger share of people identifying as Hispanic (24.1%) than the US overall (20%).
In contrast, Gillespie County’s non-Hispanic Black or African American population accounts for 0.71%, below the 12.6% nationwide, and the non-Hispanic Asian population makes up 0.67% of the county, compared with 6.5% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
Gillespie County, TX has a higher share of a non-Hispanic white population than Texas as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Gillespie County, TX is Fredericksburg with about 11,800 residents in 2024.
Cities and towns in Gillespie County, TX ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Fredericksburg | 11,766 |
| 2. | Balance of Gillespie County | 16,393 |
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
