McLean County Demographics

A map of McLean County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	130,803	129,440	76.2%	75.7%
Black	14,355	14,699	8.4%	8.6%
Hispanic	11,062	10,524	6.4%	6.2%
Asian	8,906	8,108	5.2%	4.7%
Multiracial	5,688	7,269	3.3%	4.3%
Native American/Other	742	914	0.4%	0.5%

McLean County, Illinois has an estimated population of 171,556, a less than 1% change from the 170,954 recorded in the 2020 Census. The population is 76.2% White, 8.4% Black, 6.4% Hispanic, 5.2% Asian, 3.3% Multiracial, and 0.4% Native American/Other. This demographic dot map shows the population of McLean County, with one dot drawn for each person counted by the Census, color-coded by race.

McLean has become slightly 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 McLean County, that probability was 41.1% in 2020 and 40.4% in the most recent ACS estimates.

McLean County is ranked the 13th most populous county in Illinois, out of 102 counties. McLean County was ranked the 13th most populous county in the 2020 Census.

McLean County's White Population

130,803 residents of McLean County, or 76.2% of the population, identify as White. The share of White residents in McLean County is significantly higher than in Illinois overall, where 58.1% of the population is White. McLean County ranks 83rd statewide in terms of White residents as a share of the population, out of 102 counties.

Since the 2020 Census, McLean County's White population has grown by an estimated 1.1%. White residents' share of McLean County's population has increased from 75.7% to 76.2%.

McLean County is less White than neighboring De Witt County (92.7% White), Woodford County (93.5% White), Livingston County (87.7% White), Piatt County (94.8% White), and Ford County (89.4% White).

McLean County's Black Population

14,355 residents of McLean County, or 8.4% of the population, identify as Black. The share of Black residents in McLean County is slightly lower than in Illinois overall, where 13.3% of the population is Black. McLean County ranks 22nd statewide in terms of Black residents as a share of the population, out of 102 counties.

Since the 2020 Census, McLean County's Black population has declined by an estimated 2.3%. Black residents' share of McLean County's population has remained roughly unchanged at 8.4%.

McLean County is more Black than neighboring De Witt County (1% Black), Woodford County (0.6% Black), Livingston County (3.4% Black), Piatt County (1.2% Black), and Ford County (0.3% Black).

McLean County's Asian Population

8,906 residents of McLean County, or 5.2% of the population, identify as Asian. The share of Asian residents in McLean County is comparable to the share in Illinois overall, where 5.9% of the population is Asian. McLean County ranks 6th statewide in terms of Asian residents as a share of the population, out of 102 counties.

Since the 2020 Census, McLean County's Asian population has grown by an estimated 9.8%. Asian residents' share of McLean County's population has increased from 4.7% to 5.2%.

McLean County is more Asian than neighboring De Witt County (0.2% Asian), Woodford County (0.6% Asian), Livingston County (0.6% Asian), Piatt County (0.6% Asian), and Ford County (0.4% Asian).

McLean County's Hispanic Population

11,062 residents of McLean County, or 6.4% of the population, identify as Hispanic. The share of Hispanic residents in McLean County is considerably lower than in Illinois overall, where 18.8% of the population is Hispanic. McLean County ranks 26th statewide in terms of Hispanic residents as a share of the population, out of 102 counties.

Since the 2020 Census, McLean County's Hispanic population has grown by an estimated 5.1%. Hispanic residents' share of McLean County's population has remained roughly unchanged at 6.4%.

McLean County is more Hispanic than neighboring De Witt County (3.5% Hispanic), Woodford County (2.1% Hispanic), Livingston County (5.8% Hispanic), Piatt County (1.6% Hispanic), and Ford County (5.3% Hispanic).

McLean County's Native American/Other Population

742 residents of McLean County, 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 McLean County is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. McLean County ranks 24th statewide in terms of Native American/Other residents as a share of the population, out of 102 counties.

Since the 2020 Census, McLean County's Native American/Other population has declined by an estimated 18.8%. Native American/Other residents' share of McLean County's population has remained roughly unchanged at 0.4%.

McLean County is more Native American/Other than neighboring De Witt County (0.2% Native American/Other), Woodford County (0.3% Native American/Other), Livingston County (0.2% Native American/Other), and Piatt County (0.2% Native American/Other). McLean County is less Native American/Other than neighboring Ford County (0.6% Native American/Other).

McLean County's Multiracial Population

5,688 residents of McLean County, or 3.3% of the population, identify as Multiracial. The share of Multiracial residents in McLean County is comparable to the share in Illinois overall, where 3.4% of the population is Multiracial. McLean County ranks 18th statewide in terms of Multiracial residents as a share of the population, out of 102 counties.

Since the 2020 Census, McLean County's Multiracial population has declined by an estimated 21.7%. Multiracial residents' share of McLean County's population has decreased from 4.3% to 3.3%.

McLean County is more Multiracial than neighboring De Witt County (2.3% Multiracial), Woodford County (3% Multiracial), Livingston County (2.4% Multiracial), and Piatt County (1.6% Multiracial). McLean County is less Multiracial than neighboring Ford County (4% 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.