Macoupin County Demographics

A map of Macoupin County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	41,461	41,850	93.5%	93.1%
Multiracial	1,348	1,837	3.0%	4.1%
Black	654	368	1.5%	0.8%
Hispanic	608	570	1.4%	1.3%
Native American/Other	149	163	0.3%	0.4%
Asian	130	179	0.3%	0.4%

Macoupin County, Illinois has an estimated population of 44,350, a slight decrease from the 44,967 recorded in the 2020 Census. The population is 93.5% White, 3.0% Multiracial, 1.5% Black, 1.4% Hispanic, 0.3% Asian, and 0.3% Native American/Other. This demographic dot map shows the population of Macoupin County, with one dot drawn for each person counted by the Census, color-coded by race.

Macoupin 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 Macoupin County, that probability was 13.2% in 2020 and 12.5% in the most recent ACS estimates.

Macoupin County is ranked the 32nd most populous county in Illinois, out of 102 counties. Macoupin County was ranked the 32nd most populous county in the 2020 Census.

Macoupin County's White Population

41,461 residents of Macoupin County, or 93.5% of the population, identify as White. The share of White residents in Macoupin County is significantly higher than in Illinois overall, where 58.1% of the population is White. Macoupin County ranks 30th statewide in terms of White residents as a share of the population, out of 102 counties.

Since the 2020 Census, Macoupin County's White population has remained roughly the same. White residents' share of Macoupin County's population has remained roughly unchanged at 93.5%.

Macoupin County is more White than neighboring Madison County (81.8% White), Montgomery County (91.7% White), and Morgan County (87.2% White). Macoupin County is less White than neighboring Jersey County (94.6% White), and Greene County (95.8% White).

Macoupin County's Black Population

654 residents of Macoupin County, or 1.5% of the population, identify as Black. The share of Black residents in Macoupin County is considerably lower than in Illinois overall, where 13.3% of the population is Black. Macoupin County ranks 62nd statewide in terms of Black residents as a share of the population, out of 102 counties.

Since the 2020 Census, Macoupin County's Black population has grown by an estimated 77.7%. Black residents' share of Macoupin County's population has increased from 0.8% to 1.5%.

Macoupin County is more Black than neighboring Jersey County (0.6% Black), and Greene County (0.8% Black). Macoupin County is less Black than neighboring Madison County (7.7% Black), Montgomery County (3.3% Black), and Morgan County (4.9% Black).

Macoupin County's Asian Population

130 residents of Macoupin County, or 0.3% of the population, identify as Asian. The share of Asian residents in Macoupin County is lower than in Illinois overall, where 5.9% of the population is Asian. Macoupin County ranks 66th statewide in terms of Asian residents as a share of the population, out of 102 counties.

Since the 2020 Census, Macoupin County's Asian population has declined by an estimated 27.4%. Asian residents' share of Macoupin County's population has remained roughly unchanged at 0.3%.

Macoupin County is less Asian than neighboring Madison County (0.8% Asian), Montgomery County (0.4% Asian), Jersey County (0.7% Asian), Greene County (0.5% Asian), and Morgan County (0.8% Asian).

Macoupin County's Hispanic Population

608 residents of Macoupin County, or 1.4% of the population, identify as Hispanic. The share of Hispanic residents in Macoupin County is significantly lower than in Illinois overall, where 18.8% of the population is Hispanic. Macoupin County ranks 93rd statewide in terms of Hispanic residents as a share of the population, out of 102 counties.

Since the 2020 Census, Macoupin County's Hispanic population has grown by an estimated 6.7%. Hispanic residents' share of Macoupin County's population has remained roughly unchanged at 1.4%.

Macoupin County is more Hispanic than neighboring Greene County (1.1% Hispanic). Macoupin County is less Hispanic than neighboring Madison County (4.3% Hispanic), Montgomery County (2.2% Hispanic), Jersey County (1.6% Hispanic), and Morgan County (2.9% Hispanic).

Macoupin County's Native American/Other Population

149 residents of Macoupin County, or 0.3% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Macoupin County is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. Macoupin County ranks 67th statewide in terms of Native American/Other residents as a share of the population, out of 102 counties.

Since the 2020 Census, Macoupin County's Native American/Other population has declined by an estimated 8.6%. Native American/Other residents' share of Macoupin County's population has remained roughly unchanged at 0.3%.

Macoupin County is more Native American/Other than neighboring Jersey County (0.2% Native American/Other), Greene County (0.2% Native American/Other), and Morgan County (0.2% Native American/Other).

Macoupin County's Multiracial Population

1,348 residents of Macoupin County, or 3.0% of the population, identify as Multiracial. The share of Multiracial residents in Macoupin County is comparable to the share in Illinois overall, where 3.4% of the population is Multiracial. Macoupin County ranks 23rd statewide in terms of Multiracial residents as a share of the population, out of 102 counties.

Since the 2020 Census, Macoupin County's Multiracial population has declined by an estimated 26.6%. Multiracial residents' share of Macoupin County's population has decreased from 4.1% to 3.0%.

Macoupin County is more Multiracial than neighboring Montgomery County (2.1% Multiracial), Jersey County (2.4% Multiracial), and Greene County (1.6% Multiracial). Macoupin County is less Multiracial than neighboring Madison County (5% Multiracial), and Morgan 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.