Gillespie County Demographics

A map of Gillespie County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	20,252	19,884	73.6%	74.4%
Hispanic	6,307	5,766	22.9%	21.6%
Multiracial	670	694	2.4%	2.6%
Native American/Other	158	170	0.6%	0.6%
Asian	106	127	0.4%	0.5%
Black	31	84	0.1%	0.3%

Gillespie County, Texas has an estimated population of 27,524, a slight increase from the 26,725 recorded in the 2020 Census. The population is 73.6% White, 22.9% Hispanic, 2.4% Multiracial, 0.6% Native American/Other, 0.4% Asian, and 0.1% Black. This demographic dot map shows the population of Gillespie County, with one dot drawn for each person counted by the Census, color-coded by race.

Gillespie has become slightly more racially diverse since the 2020 Census. It is considerably less diverse than Texas overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Gillespie County, that probability was 39.9% in 2020 and 40.6% in the most recent ACS estimates.

Gillespie County is ranked the 99th most populous county in Texas, out of 254 counties. Gillespie County was ranked the 99th most populous county in the 2020 Census.

Gillespie County's White Population

20,252 residents of Gillespie County, or 73.6% of the population, identify as White. The share of White residents in Gillespie County is significantly higher than in Texas overall, where 39.1% of the population is White. Gillespie County ranks 49th statewide in terms of White residents as a share of the population, out of 254 counties.

Since the 2020 Census, Gillespie County's White population has grown by an estimated 1.9%. White residents' share of Gillespie County's population has decreased from 74.4% to 73.6%.

Gillespie County is more White than neighboring Kendall County (69.2% White), and Kerr County (67.1% White). Gillespie County is less White than neighboring Llano County (82.1% White), Mason County (79.8% White), and Blanco County (75.5% White).

Gillespie County's Black Population

31 residents of Gillespie County, or 0.1% of the population, identify as Black. The share of Black residents in Gillespie County is considerably lower than in Texas overall, where 11.9% of the population is Black. Gillespie County ranks 227th statewide in terms of Black residents as a share of the population, out of 254 counties.

Since the 2020 Census, Gillespie County's Black population has declined by an estimated 63.1%. Black residents' share of Gillespie County's population has remained roughly unchanged at 0.1%.

Gillespie County is less Black than neighboring Kendall County (0.9% Black), Llano County (0.3% Black), Kerr County (1.5% Black), and Blanco County (1.1% Black).

Gillespie County's Asian Population

106 residents of Gillespie County, or 0.4% of the population, identify as Asian. The share of Asian residents in Gillespie County is lower than in Texas overall, where 5.5% of the population is Asian. Gillespie County ranks 143rd statewide in terms of Asian residents as a share of the population, out of 254 counties.

Since the 2020 Census, Gillespie County's Asian population has declined by an estimated 16.5%. Asian residents' share of Gillespie County's population has remained roughly unchanged at 0.4%.

Gillespie County is more Asian than neighboring Mason County (0.2% Asian), and Blanco County (0.1% Asian). Gillespie County is less Asian than neighboring Kendall County (1.6% Asian), Llano County (0.6% Asian), and Kerr County (1.1% Asian).

Gillespie County's Hispanic Population

6,307 residents of Gillespie County, or 22.9% of the population, identify as Hispanic. The share of Hispanic residents in Gillespie County is significantly lower than in Texas overall, where 39.7% of the population is Hispanic. Gillespie County ranks 168th statewide in terms of Hispanic residents as a share of the population, out of 254 counties.

Since the 2020 Census, Gillespie County's Hispanic population has grown by an estimated 9.4%. Hispanic residents' share of Gillespie County's population has increased from 21.6% to 22.9%.

Gillespie County is more Hispanic than neighboring Llano County (13.4% Hispanic), Mason County (18.9% Hispanic), and Blanco County (18.6% Hispanic). Gillespie County is less Hispanic than neighboring Kendall County (24.4% Hispanic), and Kerr County (26.8% Hispanic).

Gillespie County's Native American/Other Population

158 residents of Gillespie County, or 0.6% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Gillespie County is comparable to the share in Texas overall, where 0.6% of the population is Native American/Other. Gillespie County ranks 145th statewide in terms of Native American/Other residents as a share of the population, out of 254 counties.

Since the 2020 Census, Gillespie County's Native American/Other population has declined by an estimated 7.1%. Native American/Other residents' share of Gillespie County's population has remained roughly unchanged at 0.6%.

Gillespie County is more Native American/Other than neighboring Mason County (0% Native American/Other), and Blanco County (0.1% Native American/Other). Gillespie County is less Native American/Other than neighboring Kendall County (0.9% Native American/Other), and Llano County (1% Native American/Other).

Gillespie County's Multiracial Population

670 residents of Gillespie County, or 2.4% of the population, identify as Multiracial. The share of Multiracial residents in Gillespie County is comparable to the share in Texas overall, where 3.1% of the population is Multiracial. Gillespie County ranks 150th statewide in terms of Multiracial residents as a share of the population, out of 254 counties.

Since the 2020 Census, Gillespie County's Multiracial population has declined by an estimated 3.5%. Multiracial residents' share of Gillespie County's population has remained roughly unchanged at 2.4%.

Gillespie County is more Multiracial than neighboring Mason County (1% Multiracial). Gillespie County is less Multiracial than neighboring Kendall County (3.1% Multiracial), Llano County (2.6% Multiracial), Kerr County (2.9% Multiracial), and Blanco County (4.6% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.