Prairie du Rocher, IL Demographics

A map of Prairie du Rocher's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	410	459	90.3%	91.4%
Hispanic	33	3	7.3%	0.6%
Multiracial	7	38	1.5%	7.6%
Black	2	0	0.4%	0.0%
Native American/Other	2	2	0.4%	0.4%
Asian	0	0	0.0%	0.0%

Prairie du Rocher, Illinois has an estimated population of 454, a decrease from the 502 recorded in the 2020 Census. The population is 90.3% White, 7.3% Hispanic, 1.5% Multiracial, 0.4% Black, 0.4% Native American/Other, and 0.0% Asian. This demographic dot map shows the population of Prairie du Rocher, with one dot drawn for each person counted by the Census, color-coded by race.

Prairie du Rocher 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 Prairie du Rocher, that probability was 15.8% in 2020 and 17.9% in the most recent ACS estimates.

Prairie du Rocher is ranked the 969th 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). Prairie du Rocher was ranked the 921st most populous place in the 2020 Census.

Prairie du Rocher's White Population

410 residents of Prairie du Rocher, or 90.3% of the population, identify as White. The share of White residents in Prairie du Rocher is significantly higher than in Illinois overall, where 58.1% of the population is White. Prairie du Rocher ranks 664th statewide in terms of White residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Prairie du Rocher's White population has declined by an estimated 10.7%. White residents' share of Prairie du Rocher's population has decreased from 91.4% to 90.3%.

Prairie du Rocher is more White than neighboring Ruma (89.1% White), Ste. Genevieve (85.3% White), and Fults (58.3% White). Prairie du Rocher is less White than neighboring Bloomsdale (95% White), and Red Bud (95.9% White).

Prairie du Rocher's Black Population

2 residents of Prairie du Rocher, or 0.4% of the population, identify as Black. The share of Black residents in Prairie du Rocher is considerably lower than in Illinois overall, where 13.3% of the population is Black. Prairie du Rocher ranks 1104th statewide in terms of Black residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Prairie du Rocher's Black population has grown from 0 to an estimated 2. Black residents' share of Prairie du Rocher's population has remained roughly unchanged at 0.4%.

Prairie du Rocher is more Black than neighboring Ruma (0% Black), Fults (0% Black), and Red Bud (0.2% Black). Prairie du Rocher is less Black than neighboring Ste. Genevieve (3.9% Black), and Bloomsdale (2.5% Black).

Prairie du Rocher's Asian Population

0 residents of Prairie du Rocher, or 0.0% of the population, identify as Asian. The share of Asian residents in Prairie du Rocher is lower than in Illinois overall, where 5.9% of the population is Asian. Prairie du Rocher ranks 1029th statewide in terms of Asian residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Prairie du Rocher's Asian population has grown from 0 to an estimated 0. Asian residents' share of Prairie du Rocher's population has remained roughly unchanged at 0.0%.

Prairie du Rocher is less Asian than neighboring Ruma (0.5% Asian), and Ste. Genevieve (0.1% Asian).

Prairie du Rocher's Hispanic Population

33 residents of Prairie du Rocher, or 7.3% of the population, identify as Hispanic. The share of Hispanic residents in Prairie du Rocher is considerably lower than in Illinois overall, where 18.8% of the population is Hispanic. Prairie du Rocher ranks 1344th statewide in terms of Hispanic residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Prairie du Rocher's Hispanic population has grown by an estimated 1000.0%. Hispanic residents' share of Prairie du Rocher's population has increased from 0.6% to 7.3%.

Prairie du Rocher is more Hispanic than neighboring Ste. Genevieve (2.4% Hispanic), Bloomsdale (1.8% Hispanic), Fults (0% Hispanic), and Red Bud (0.5% Hispanic). Prairie du Rocher is less Hispanic than neighboring Ruma (8.1% Hispanic).

Prairie du Rocher's Native American/Other Population

2 residents of Prairie du Rocher, or 0.4% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Prairie du Rocher is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. Prairie du Rocher ranks 716th statewide in terms of Native American/Other residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Prairie du Rocher's Native American/Other population has remained roughly the same. Native American/Other residents' share of Prairie du Rocher's population has remained roughly unchanged at 0.4%.

Prairie du Rocher is more Native American/Other than neighboring Ste. Genevieve (0.3% Native American/Other), Bloomsdale (0% Native American/Other), and Fults (0% Native American/Other). Prairie du Rocher is less Native American/Other than neighboring Ruma (2% Native American/Other).

Prairie du Rocher's Multiracial Population

7 residents of Prairie du Rocher, or 1.5% of the population, identify as Multiracial. The share of Multiracial residents in Prairie du Rocher is comparable to the share in Illinois overall, where 3.4% of the population is Multiracial. Prairie du Rocher ranks 54th statewide in terms of Multiracial residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Prairie du Rocher's Multiracial population has declined by an estimated 81.6%. Multiracial residents' share of Prairie du Rocher's population has decreased from 7.6% to 1.5%.

Prairie du Rocher is more Multiracial than neighboring Ruma (0.3% Multiracial), and Bloomsdale (0.7% Multiracial). Prairie du Rocher is less Multiracial than neighboring Ste. Genevieve (8.1% Multiracial), Fults (41.7% Multiracial), and Red Bud (3.1% 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.