Big Rock, IL Demographics

A map of Big Rock's Population by Race

Big Rock, Illinois has an estimated population of 1,548, a dramatic increase from the 1,104 recorded in the 2020 Census. The population is 70.8% White, 18.4% Multiracial, 9.8% Hispanic, 0.8% Asian, 0.2% Black, and 0.0% Native American/Other. This demographic dot map shows the population of Big Rock, with one dot drawn for each person counted by the Census, color-coded by race.

Big Rock has become considerably 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 Big Rock, that probability was 20.0% in 2020 and 45.5% in the most recent ACS estimates.

Big Rock is ranked the 571st 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). Big Rock was ranked the 668th most populous place in the 2020 Census.

Big Rock's White Population

1,096 residents of Big Rock, or 70.8% of the population, identify as White. The share of White residents in Big Rock is considerably higher than in Illinois overall, where 58.1% of the population is White. Big Rock ranks 828th statewide in terms of White residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Big Rock's White population has grown by an estimated 11.4%. White residents' share of Big Rock's population has decreased from 89.1% to 70.8%.

Big Rock is more White than neighboring Plano (52.9% White). Big Rock is less White than neighboring Kaneville (88% White), Sugar Grove (87.7% White), Prestbury (86% White), and Hinckley (81.8% White).

Big Rock's Black Population

3 residents of Big Rock, or 0.2% of the population, identify as Black. The share of Black residents in Big Rock is considerably lower than in Illinois overall, where 13.3% of the population is Black. Big Rock ranks 990th statewide in terms of Black residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Big Rock's Black population has remained roughly the same. Black residents' share of Big Rock's population has remained roughly unchanged at 0.2%.

Big Rock is less Black than neighboring Kaneville (0.4% Black), Sugar Grove (0.5% Black), Plano (1.3% Black), Prestbury (2% Black), and Hinckley (0.9% Black).

Big Rock's Asian Population

12 residents of Big Rock, or 0.8% of the population, identify as Asian. The share of Asian residents in Big Rock is lower than in Illinois overall, where 5.9% of the population is Asian. Big Rock ranks 675th statewide in terms of Asian residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Big Rock's Asian population has grown by an estimated 140.0%. Asian residents' share of Big Rock's population has remained roughly unchanged at 0.8%.

Big Rock is more Asian than neighboring Prestbury (0% Asian), and Hinckley (0.7% Asian). Big Rock is less Asian than neighboring Kaneville (1.9% Asian), and Sugar Grove (2.7% Asian).

Big Rock's Hispanic Population

152 residents of Big Rock, or 9.8% of the population, identify as Hispanic. The share of Hispanic residents in Big Rock is lower than in Illinois overall, where 18.8% of the population is Hispanic. Big Rock ranks 395th statewide in terms of Hispanic residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Big Rock's Hispanic population has grown by an estimated 105.4%. Hispanic residents' share of Big Rock's population has increased from 6.7% to 9.8%.

Big Rock is more Hispanic than neighboring Kaneville (6.3% Hispanic), Sugar Grove (6.4% Hispanic), and Prestbury (7.7% Hispanic). Big Rock is less Hispanic than neighboring Plano (39.8% Hispanic), and Hinckley (10.9% Hispanic).

Big Rock's Native American/Other Population

0 residents of Big Rock, 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 Big Rock is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. Big Rock ranks 1129th statewide in terms of Native American/Other residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Big Rock's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Big Rock's population has remained roughly unchanged at 0.0%.

Big Rock is less Native American/Other than neighboring Sugar Grove (0.4% Native American/Other), and Hinckley (0.6% Native American/Other).

Big Rock's Multiracial Population

285 residents of Big Rock, or 18.4% of the population, identify as Multiracial. The share of Multiracial residents in Big Rock is considerably higher than in Illinois overall, where 3.4% of the population is Multiracial. Big Rock ranks 788th statewide in terms of Multiracial residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Big Rock's Multiracial population has grown by an estimated 670.3%. Multiracial residents' share of Big Rock's population has increased from 3.4% to 18.4%.

Big Rock is more Multiracial than neighboring Kaneville (3.4% Multiracial), Sugar Grove (2.3% Multiracial), Plano (5.3% Multiracial), Prestbury (4.3% Multiracial), and Hinckley (5.1% 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.