Chatham, IL Demographics

A map of Chatham's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	12,908	12,226	88.2%	85.0%
Hispanic	567	384	3.9%	2.7%
Asian	453	508	3.1%	3.5%
Multiracial	414	632	2.8%	4.4%
Black	297	549	2.0%	3.8%
Native American/Other	0	78	0.0%	0.5%

Chatham, Illinois has an estimated population of 14,639, a slight increase from the 14,377 recorded in the 2020 Census. The population is 88.2% White, 3.9% Hispanic, 3.1% Asian, 2.8% Multiracial, 2.0% Black, and 0.0% Native American/Other. This demographic dot map shows the population of Chatham, with one dot drawn for each person counted by the Census, color-coded by race.

Chatham has become considerably 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 Chatham, that probability was 27.2% in 2020 and 21.9% in the most recent ACS estimates.

Chatham is ranked the 169th 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). Chatham was ranked the 170th most populous place in the 2020 Census.

Chatham's White Population

12,908 residents of Chatham, or 88.2% of the population, identify as White. The share of White residents in Chatham is significantly higher than in Illinois overall, where 58.1% of the population is White. Chatham ranks 1011th statewide in terms of White residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Chatham's White population has grown by an estimated 5.6%. White residents' share of Chatham's population has increased from 85.0% to 88.2%.

Chatham is more White than neighboring Southern View (79.8% White), Jerome (85.9% White), and Springfield (69.3% White). Chatham is less White than neighboring Leland Grove (92.1% White), and Curran (95.7% White).

Chatham's Black Population

297 residents of Chatham, or 2.0% of the population, identify as Black. The share of Black residents in Chatham is considerably lower than in Illinois overall, where 13.3% of the population is Black. Chatham ranks 256th statewide in terms of Black residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Chatham's Black population has declined by an estimated 45.9%. Black residents' share of Chatham's population has decreased from 3.8% to 2.0%.

Chatham is more Black than neighboring Curran (0% Black). Chatham is less Black than neighboring Southern View (9.1% Black), Jerome (4.2% Black), Springfield (19.1% Black), and Leland Grove (2.6% Black).

Chatham's Asian Population

453 residents of Chatham, or 3.1% of the population, identify as Asian. The share of Asian residents in Chatham is slightly lower than in Illinois overall, where 5.9% of the population is Asian. Chatham ranks 155th statewide in terms of Asian residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Chatham's Asian population has declined by an estimated 10.8%. Asian residents' share of Chatham's population has remained roughly unchanged at 3.1%.

Chatham is more Asian than neighboring Southern View (0.9% Asian), Jerome (0.9% Asian), Springfield (3% Asian), Leland Grove (2.2% Asian), and Curran (0% Asian).

Chatham's Hispanic Population

567 residents of Chatham, or 3.9% of the population, identify as Hispanic. The share of Hispanic residents in Chatham is considerably lower than in Illinois overall, where 18.8% of the population is Hispanic. Chatham ranks 801st statewide in terms of Hispanic residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Chatham's Hispanic population has grown by an estimated 47.7%. Hispanic residents' share of Chatham's population has increased from 2.7% to 3.9%.

Chatham is more Hispanic than neighboring Springfield (3.4% Hispanic), Leland Grove (1.5% Hispanic), and Curran (0% Hispanic). Chatham is less Hispanic than neighboring Southern View (4.3% Hispanic), and Jerome (5.3% Hispanic).

Chatham's Native American/Other Population

0 residents of Chatham, 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 Chatham is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. Chatham ranks 459th statewide in terms of Native American/Other residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Chatham's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Chatham's population has decreased from 0.5% to 0.0%.

Chatham is less Native American/Other than neighboring Southern View (0.6% Native American/Other), Springfield (0.9% Native American/Other), and Curran (4.3% Native American/Other).

Chatham's Multiracial Population

414 residents of Chatham, or 2.8% of the population, identify as Multiracial. The share of Multiracial residents in Chatham is comparable to the share in Illinois overall, where 3.4% of the population is Multiracial. Chatham ranks 403rd statewide in terms of Multiracial residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Chatham's Multiracial population has declined by an estimated 34.5%. Multiracial residents' share of Chatham's population has decreased from 4.4% to 2.8%.

Chatham is more Multiracial than neighboring Leland Grove (1.6% Multiracial), and Curran (0% Multiracial). Chatham is less Multiracial than neighboring Southern View (5.2% Multiracial), Jerome (3.8% Multiracial), and Springfield (4.3% 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.