Gillespie, IL Demographics

A map of Gillespie's Population by Race

Gillespie, Illinois has an estimated population of 2,815, a large decrease from the 3,168 recorded in the 2020 Census. The population is 91.2% White, 7.5% Multiracial, 1.0% Hispanic, 0.2% Native American/Other, 0.0% Black, and 0.0% Asian. This demographic dot map shows the population of Gillespie, with one dot drawn for each person counted by the Census, color-coded by race.

Gillespie has become more racially diverse since the 2020 Census. It is considerably less diverse than Illinois overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Gillespie, that probability was 11.4% in 2020 and 16.2% in the most recent ACS estimates.

Gillespie is ranked the 437th most populous place in Illinois, out of 1,461 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). Gillespie was ranked the 422nd most populous place in the 2020 Census.

Gillespie's White Population

2,568 residents of Gillespie, or 91.2% of the population, identify as White. The share of White residents in Gillespie is significantly higher than in Illinois overall, where 58.1% of the population is White. Gillespie ranks 312th statewide in terms of White residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Gillespie's White population has declined by an estimated 13.8%. White residents' share of Gillespie's population has decreased from 94.0% to 91.2%.

Gillespie is more White than neighboring Eagarville (85.8% White). Gillespie is less White than neighboring East Gillespie (92.6% White), Mount Clare (95.2% White), Benld (94.3% White), and Sawyerville (97% White).

Gillespie's Black Population

0 residents of Gillespie, or 0.0% of the population, identify as Black. The share of Black residents in Gillespie is considerably lower than in Illinois overall, where 13.3% of the population is Black. Gillespie ranks 1031st statewide in terms of Black residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Gillespie's Black population has declined by an estimated 100.0%. Black residents' share of Gillespie's population has remained roughly unchanged at 0.0%.

Gillespie is less Black than neighboring Mount Clare (1.7% Black), and Benld (1.7% Black).

Gillespie's Asian Population

0 residents of Gillespie, or 0.0% of the population, identify as Asian. The share of Asian residents in Gillespie is lower than in Illinois overall, where 5.9% of the population is Asian. Gillespie ranks 782nd statewide in terms of Asian residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Gillespie's Asian population has declined by an estimated 100.0%. Asian residents' share of Gillespie's population has remained roughly unchanged at 0.0%.

Gillespie is less Asian than neighboring East Gillespie (0.3% Asian), Benld (0.3% Asian), and Eagarville (1.3% Asian).

Gillespie's Hispanic Population

29 residents of Gillespie, or 1.0% of the population, identify as Hispanic. The share of Hispanic residents in Gillespie is significantly lower than in Illinois overall, where 18.8% of the population is Hispanic. Gillespie ranks 1275th statewide in terms of Hispanic residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Gillespie's Hispanic population has grown by an estimated 3.6%. Hispanic residents' share of Gillespie's population has remained roughly unchanged at 1.0%.

Gillespie is more Hispanic than neighboring Mount Clare (0% Hispanic), Benld (0.4% Hispanic), Eagarville (0% Hispanic), and Sawyerville (0% Hispanic). Gillespie is less Hispanic than neighboring East Gillespie (2.5% Hispanic).

Gillespie's Native American/Other Population

6 residents of Gillespie, or 0.2% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Gillespie is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. Gillespie ranks 572nd statewide in terms of Native American/Other residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Gillespie's Native American/Other population has declined by an estimated 60.0%. Native American/Other residents' share of Gillespie's population has remained roughly unchanged at 0.2%.

Gillespie is more Native American/Other than neighboring East Gillespie (0% Native American/Other), and Mount Clare (0% Native American/Other). Gillespie is less Native American/Other than neighboring Benld (0.5% Native American/Other), Eagarville (9.7% Native American/Other), and Sawyerville (1% Native American/Other).

Gillespie's Multiracial Population

212 residents of Gillespie, or 7.5% of the population, identify as Multiracial. The share of Multiracial residents in Gillespie is slightly higher than in Illinois overall, where 3.4% of the population is Multiracial. Gillespie ranks 518th statewide in terms of Multiracial residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Gillespie's Multiracial population has grown by an estimated 65.6%. Multiracial residents' share of Gillespie's population has increased from 4.0% to 7.5%.

Gillespie is more Multiracial than neighboring East Gillespie (4.6% Multiracial), Mount Clare (3.1% Multiracial), Benld (2.7% Multiracial), Eagarville (3.2% Multiracial), and Sawyerville (2% 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.