Gillespie County, Texas Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 99th-largest in Texas
The population of Gillespie County, Texas is 27,202 as of the 2023 American Community Survey, making it the 99th-largest county in Texas. The median household income is $67,799, the median home value is $432,300, and the median age is 50.5.
The population of Gillespie County has grown 13.2% since 2010 (24,875 → 28,159), a +0.89% annualized rate.
27,202
Population
+0.89%
Annual growth
26
People / sq mi
$67,799
Median Income
$432,300
Median Home Value
Gillespie County covers 1,058 sq mi of land at 25.7 people per square mile.
About Gillespie County, TX
In Gillespie County, home values do the distinguishing — a median of $432,300. With 27,202 residents, Gillespie County is a county in Texas.
The typical household here earns about $67,799, below the US median of $78,538. The poverty rate is 7.6%, below the national 12.4%. Housing is expensive: the median home is worth $432,300, with typical rent around $1,331.
About 35.3% of adults 25 and older have a bachelor’s degree, near the 35.0% national figure. A solid 10.9% of workers are based at home, below the national 14.0%, and the average commute runs about 22 minutes each way.
High housing values reframe the income picture in Gillespie County — even solid earnings stretch less against home prices and rents at this level.
Gillespie County Population History (2010-2024)
The county of Gillespie County had a population of 24,875 in 2010 and 28,159 in 2024, a 13.2% growth over 14 years. The peak was 28,159 in 2024. Average annual growth rate: 0.89%.
28,159
Population (2024)
24,875
Population (2010)
28,159
Peak (2024)
0.89%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 24,875 |
| 2011 | 25,041 |
| 2012 | 25,177 |
| 2013 | 25,364 |
| 2014 | 25,476 |
| 2015 | 25,913 |
| 2016 | 26,225 |
| 2017 | 26,520 |
| 2018 | 26,706 |
| 2019 | 26,927 |
| 2020 | 26,766 |
| 2021 | 27,313 |
| 2022 | 27,572 |
| 2023 | 27,809 |
| 2024 | 28,159 |
Race & Ethnicity
| White | 84.9% |
| Black or African American | 0.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 2.0% |
| Two or More Races | 0.0% |
Age & Sex
50.5
Median Age
50.8%
Female
49.2%
Male
29.7%
Age 65+
Age Distribution
Children (under 15): 15.6% · Seniors (65+): 29.7%
Income & Poverty
| Median household income | $67,799$-8,493 vs state |
| Mean household income | $101,721 |
| Per-capita income | $43,555 |
| Poverty rate | 7.6%-2.9% vs state |
| Unemployment rate | 2.2% |
| Employment-to-population | 54.0% |
Top Industries by Employment
The largest employment sector in Gillespie County is professional & business services, accounting for 21.7% of workers.
How residents commute
0.3%
Drive alone
3.4%
Carpool
73.3%
Public transit
10.9%
Work from home
22.0 min
Avg commute
Housing
$432,300+$171,900 vs state
Median home value
$1,331
Median rent
71.0%
Homeownership rate
14,255
Total housing units
79.1%
Occupied
20.9%
Vacant
29.0%
Renter-occupied
Social & access
84.5%
With health insurance
93.6%
With broadband internet
24.6%
Foreign-born
8.7%
Veterans (18+)
15.0%
With a disability
85.0%
Speak language other than English at home
Education
89.3%
High School+
35.3%
Bachelor's+
Largest cities in Texas
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County rankings
Frequently Asked Questions
Gillespie County, Texas has a population of 27,202 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 99th-largest county in Texas. Population density is 26 people per square mile.
The population of Gillespie County has grown 13.2% since 2010 (24,875 → 28,159), a +0.89% annualized rate.
The median household income in Gillespie County, Texas is $67,799, with mean (average) household income of $101,721 and per-capita income of $43,555. 7.6% of residents live below the federal poverty level.
In Gillespie County, the largest racial and ethnic groups are White (84.9%), Hispanic or Latino (2.0%), Black or African American (0.5%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Gillespie County, Texas is 50.5 years. Residents are 50.8% female and 49.2% male.
The median home value in Gillespie County is $432,300 and median monthly rent is $1,331. 71.0% of occupied housing units are owner-occupied. The county has 14,255 total housing units, 20.9% of which are vacant.
The largest employment sector in Gillespie County, Texas is professional, scientific, and management services, employing 21.7% of workers. The unemployment rate is 2.2%.
Houston is among the largest cities associated with Gillespie County, Texas, with a population of 2,300,419.
Gillespie County, TX Climate
Gillespie County, TX has an average annual temperature of 18.2°C (65°F) and receives about 757 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
18.2°C
Avg Temp
757
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 8° / 46° | 34 mm |
| February | 10° / 51° | 46 mm |
| March | 14° / 58° | 39 mm |
| April | 18° / 65° | 61 mm |
| May | 22° / 72° | 103 mm |
| June | 25° / 78° | 87 mm |
| July | 27° / 80° | 54 mm |
| August | 27° / 80° | 71 mm |
| September | 24° / 75° | 89 mm |
| October | 19° / 67° | 89 mm |
| November | 13° / 56° | 49 mm |
| December | 9° / 49° | 35 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Gillespie County, TX
The most comfortable months to visit Gillespie County, TX are typically April, October and May, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 34°C high). The coldest is January (near 1°C low). May is usually the wettest month.
Where to stay near Gillespie County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.