Thayer, IL Demographics

A map of Thayer's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	507	596	95.5%	94.3%
Multiracial	11	26	2.1%	4.1%
Black	7	4	1.3%	0.6%
Asian	6	0	1.1%	0.0%
Hispanic	0	6	0.0%	0.9%
Native American/Other	0	0	0.0%	0.0%

Thayer, Illinois has an estimated population of 531, a large decrease from the 632 recorded in the 2020 Census. The population is 95.5% White, 2.1% Multiracial, 1.3% Black, 1.1% Asian, 0.0% Hispanic, and 0.0% Native American/Other. This demographic dot map shows the population of Thayer, with one dot drawn for each person counted by the Census, color-coded by race.

Thayer has become less 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 Thayer, that probability was 10.9% in 2020 and 8.8% in the most recent ACS estimates.

Thayer is ranked the 915th 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). Thayer was ranked the 837th most populous place in the 2020 Census.

Thayer's White Population

507 residents of Thayer, or 95.5% of the population, identify as White. The share of White residents in Thayer is significantly higher than in Illinois overall, where 58.1% of the population is White. Thayer ranks 278th statewide in terms of White residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Thayer's White population has declined by an estimated 14.9%. White residents' share of Thayer's population has increased from 94.3% to 95.5%.

Thayer is more White than neighboring Virden (93% White), Auburn (91.9% White), Girard (94.6% White), and Farmersville (84.4% White). Thayer is less White than neighboring Divernon (97.3% White).

Thayer's Black Population

7 residents of Thayer, or 1.3% of the population, identify as Black. The share of Black residents in Thayer is considerably lower than in Illinois overall, where 13.3% of the population is Black. Thayer ranks 771st statewide in terms of Black residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Thayer's Black population has grown by an estimated 75.0%. Black residents' share of Thayer's population has increased from 0.6% to 1.3%.

Thayer is more Black than neighboring Auburn (0.9% Black), Girard (0% Black), Divernon (0% Black), and Farmersville (0% Black). Thayer is less Black than neighboring Virden (4.8% Black).

Thayer's Asian Population

6 residents of Thayer, or 1.1% of the population, identify as Asian. The share of Asian residents in Thayer is slightly lower than in Illinois overall, where 5.9% of the population is Asian. Thayer ranks 1029th statewide in terms of Asian residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Thayer's Asian population has grown from 0 to an estimated 6. Asian residents' share of Thayer's population has increased from 0.0% to 1.1%.

Thayer is more Asian than neighboring Virden (0% Asian), Auburn (0% Asian), Girard (0% Asian), and Farmersville (0.1% Asian). Thayer is less Asian than neighboring Divernon (1.7% Asian).

Thayer's Hispanic Population

0 residents of Thayer, or 0.0% of the population, identify as Hispanic. The share of Hispanic residents in Thayer is significantly lower than in Illinois overall, where 18.8% of the population is Hispanic. Thayer ranks 1259th statewide in terms of Hispanic residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Thayer's Hispanic population has declined by an estimated 100.0%. Hispanic residents' share of Thayer's population has decreased from 0.9% to 0.0%.

Thayer is less Hispanic than neighboring Virden (0.3% Hispanic), Auburn (5.5% Hispanic), Girard (2.5% Hispanic), Divernon (0.4% Hispanic), and Farmersville (10.9% Hispanic).

Thayer's Native American/Other Population

0 residents of Thayer, or 0.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Thayer is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. Thayer ranks 1139th statewide in terms of Native American/Other residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Thayer's Native American/Other population has grown from 0 to an estimated 0. Native American/Other residents' share of Thayer's population has remained roughly unchanged at 0.0%.

Thayer is less Native American/Other than neighboring Girard (0.7% Native American/Other), Divernon (0.1% Native American/Other), and Farmersville (0.7% Native American/Other).

Thayer's Multiracial Population

11 residents of Thayer, or 2.1% of the population, identify as Multiracial. The share of Multiracial residents in Thayer is comparable to the share in Illinois overall, where 3.4% of the population is Multiracial. Thayer ranks 487th statewide in terms of Multiracial residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Thayer's Multiracial population has declined by an estimated 57.7%. Multiracial residents' share of Thayer's population has decreased from 4.1% to 2.1%.

Thayer is more Multiracial than neighboring Virden (2% Multiracial), Auburn (1.7% Multiracial), and Divernon (0.4% Multiracial). Thayer is less Multiracial than neighboring Farmersville (3.9% 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.