Plainfield, IL Demographics

A map of Plainfield's Population by Race

Plainfield, Illinois has an estimated population of 46,708, an increase from the 44,762 recorded in the 2020 Census. The population is 66.4% White, 10.5% Asian, 9.6% Hispanic, 9.0% Black, 3.6% Multiracial, and 0.8% Native American/Other. This demographic dot map shows the population of Plainfield, with one dot drawn for each person counted by the Census, color-coded by race.

Plainfield 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 Plainfield, that probability was 50.9% in 2020 and 53.0% in the most recent ACS estimates.

Plainfield is ranked the 32nd 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). Plainfield was ranked the 33rd most populous place in the 2020 Census.

Plainfield's White Population

30,999 residents of Plainfield, or 66.4% of the population, identify as White. The share of White residents in Plainfield is higher than in Illinois overall, where 58.1% of the population is White. Plainfield ranks 1248th statewide in terms of White residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Plainfield's White population has grown by an estimated 1.9%. White residents' share of Plainfield's population has decreased from 68.0% to 66.4%.

Plainfield is more White than neighboring Crystal Lawns (65.9% White), Sunnyland (39.4% White), Crest Hill (50.5% White), and Romeoville (40.5% White). Plainfield is less White than neighboring Shorewood (73.7% White).

Plainfield's Black Population

4,220 residents of Plainfield, or 9.0% of the population, identify as Black. The share of Black residents in Plainfield is slightly lower than in Illinois overall, where 13.3% of the population is Black. Plainfield ranks 182nd statewide in terms of Black residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Plainfield's Black population has grown by an estimated 38.5%. Black residents' share of Plainfield's population has increased from 6.8% to 9.0%.

Plainfield is more Black than neighboring Crystal Lawns (0% Black), and Shorewood (5% Black). Plainfield is less Black than neighboring Sunnyland (34.5% Black), Crest Hill (15% Black), and Romeoville (14.3% Black).

Plainfield's Asian Population

4,903 residents of Plainfield, or 10.5% of the population, identify as Asian. The share of Asian residents in Plainfield is slightly higher than in Illinois overall, where 5.9% of the population is Asian. Plainfield ranks 62nd statewide in terms of Asian residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Plainfield's Asian population has grown by an estimated 14.0%. Asian residents' share of Plainfield's population has increased from 9.6% to 10.5%.

Plainfield is more Asian than neighboring Crystal Lawns (0% Asian), Sunnyland (0% Asian), Shorewood (2.1% Asian), Crest Hill (2.4% Asian), and Romeoville (6.1% Asian).

Plainfield's Hispanic Population

4,501 residents of Plainfield, or 9.6% of the population, identify as Hispanic. The share of Hispanic residents in Plainfield is lower than in Illinois overall, where 18.8% of the population is Hispanic. Plainfield ranks 226th statewide in terms of Hispanic residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Plainfield's Hispanic population has declined by an estimated 11.9%. Hispanic residents' share of Plainfield's population has decreased from 11.4% to 9.6%.

Plainfield is less Hispanic than neighboring Crystal Lawns (31.6% Hispanic), Sunnyland (15.1% Hispanic), Shorewood (15.3% Hispanic), Crest Hill (27% Hispanic), and Romeoville (35.7% Hispanic).

Plainfield's Native American/Other Population

390 residents of Plainfield, or 0.8% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Plainfield is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. Plainfield ranks 616th statewide in terms of Native American/Other residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Plainfield's Native American/Other population has grown by an estimated 94.0%. Native American/Other residents' share of Plainfield's population has remained roughly unchanged at 0.8%.

Plainfield is more Native American/Other than neighboring Crystal Lawns (0% Native American/Other), Crest Hill (0.3% Native American/Other), and Romeoville (0.2% Native American/Other). Plainfield is less Native American/Other than neighboring Sunnyland (9.7% Native American/Other), and Shorewood (1.8% Native American/Other).

Plainfield's Multiracial Population

1,695 residents of Plainfield, or 3.6% of the population, identify as Multiracial. The share of Multiracial residents in Plainfield is comparable to the share in Illinois overall, where 3.4% of the population is Multiracial. Plainfield ranks 626th statewide in terms of Multiracial residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Plainfield's Multiracial population has grown by an estimated 1.6%. Multiracial residents' share of Plainfield's population has remained roughly unchanged at 3.6%.

Plainfield is more Multiracial than neighboring Crystal Lawns (2.5% Multiracial), Sunnyland (1.2% Multiracial), Shorewood (2.1% Multiracial), and Romeoville (3.2% Multiracial). Plainfield is less Multiracial than neighboring Crest Hill (4.8% 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.