Data / Population / Gillespie County

Population in Gillespie County

Population in Gillespie County was 28,527 in 2025, according to the U.S. Census Bureau. That is up 1.4% from 2024. That is the 99th highest of 254 counties in 2025.

2025, persons28,527
Change on 2024+1.4%
Rank99th of 254Counties in Texas ranked
Series high28,5272025
Series low26,7682020

Population in Gillespie County, 2020 to 2025

CSVChart (SVG)

26.5K27K27.5K28K28.5K29K2020202120222023202420252020: 26,768 persons2021: 27,315 persons2022: 27,540 persons2023: 27,766 persons2024: 28,126 persons2025: 28,527 persons
persons. Source: U.S. Census Bureau. Retrieved 2026-10-08, published 2026-03-26.
All 6 values
Periodpersons
202528,527
202428,126
202327,766
202227,540
202127,315
202026,768

Compared with Texas and United States

Place2025
Gillespie County28,527
Texas31,709,821
United States341,784,857

Rankings

Definition

Resident population. Spain and the EU: 1 January, with Spanish figures from the official municipal register (Padrón). United States: Census Bureau population estimates for 1 July. Other countries and the World: World Bank mid-year estimates, which count all residents regardless of legal status or citizenship.

For Denmark, Statistics Denmark counts the registered resident population on 1 January. Greenland and the Faroe Islands are excluded. The annual series selects the first-quarter reference date from FOLK1A. The World Bank series exists for every country, so use it (through compare) to rank countries on one basis.

How to cite

U.S. Census Bureau. Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program). https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-08.

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Questions

What is the population in Gillespie County?

Population in Gillespie County was 28,527 in 2025, according to the U.S. Census Bureau. That is up 1.4% from 2024. That is the 99th highest of 254 counties in 2025.

Where does this figure come from?

U.S. Census Bureau. Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program). Retrieved by Invokely on 2026-10-08.

What was the highest population in Gillespie County?

28,527 in 2025, the highest value since 2020 in this series.

More statistics for Gillespie County

All statistics for Gillespie County