Madison County Demographics

A map of Madison County's Population by Race

Madison County, Illinois had a population of 265,859 in 2020. It was 80.4% White, 9.3% Black, 1.0% Asian, 4.1% Hispanic, 0.6% Native American/Other, and 4.7% Multiracial. This map presents the population of Madison County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Madison County is the 8th most populous county of the 102 counties in Illinois.

Madison County's White Population

213,793 residents of Madison County identify as White, or 80.4%. This makes the White share of the population of Madison County considerably larger than the White share of the population of Illinois (58.3% White). Of the 102 counties in Illinois, Madison County is ranked #75 in terms of White residents as a share of the population.

Madison County is more White than neighboring St. Clair County (58.5% White), and St. Louis County (42.9% White). Madison County is less White than neighboring Macoupin County (93.1% White), Bond County (85.3% White), and Jersey County (93.5% White).

Madison County's Black Population

24,671 residents of Madison County identify as Black, or 9.3%. This makes the Black share of the population of Madison County roughly similar to the Black share of the population of Illinois (13.9% Black). Of the 102 counties in Illinois, Madison County is ranked #18 in terms of Black residents as a share of the population.

Madison County is more Black than neighboring Macoupin County (0.8% Black), Bond County (6.4% Black), and Jersey County (0.7% Black). Madison County is less Black than neighboring St. Clair County (29.5% Black), and St. Louis County (42.8% Black).

Madison County's Asian Population

2,718 residents of Madison County identify as Asian, or 1.0%. This makes the Asian share of the population of Madison County roughly similar to the Asian share of the population of Illinois (5.8% Asian). Of the 102 counties in Illinois, Madison County is ranked #24 in terms of Asian residents as a share of the population.

Madison County is more Asian than neighboring Macoupin County (0.4% Asian), Bond County (0.6% Asian), and Jersey County (0.3% Asian). Madison County is less Asian than neighboring St. Clair County (1.4% Asian), and St. Louis County (4% Asian).

Madison County's Hispanic Population

10,797 residents of Madison County identify as Hispanic, or 4.1%. This makes the Hispanic share of the population of Madison County less than the Hispanic share of the population of Illinois (18.2% Hispanic). Of the 102 counties in Illinois, Madison County is ranked #39 in terms of Hispanic residents as a share of the population.

Madison County is more Hispanic than neighboring Macoupin County (1.3% Hispanic), Bond County (3.6% Hispanic), and Jersey County (1.5% Hispanic). Madison County is less Hispanic than neighboring St. Clair County (4.9% Hispanic), and St. Louis County (5.1% Hispanic).

Madison County's Native American/Other Population

1,476 residents of Madison County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 0.6%. This makes the Native American/Other share of the population of Madison County roughly similar to the Native American/Other share of the population of Illinois (0.5% Native American/Other). Of the 102 counties in Illinois, Madison County is ranked #19 in terms of Native American/Other residents as a share of the population.

Madison County is more Native American/Other than neighboring Macoupin County (0.4% Native American/Other), and Jersey County (0.3% Native American/Other). Madison County is less Native American/Other than neighboring St. Clair County (0.7% Native American/Other), St. Louis County (0.8% Native American/Other), and Bond County (0.9% Native American/Other).

Madison County's Multiracial Population

12,404 residents of Madison County identify as Multiracial, or 4.7%. This makes the Multiracial share of the population of Madison County roughly similar to the Multiracial share of the population of Illinois (3.2% Multiracial). Of the 102 counties in Illinois, Madison County is ranked #12 in terms of Multiracial residents as a share of the population.

Madison County is more Multiracial than neighboring St. Louis County (4.4% Multiracial), Macoupin County (4.1% Multiracial), Bond County (3.2% Multiracial), and Jersey County (3.7% Multiracial). Madison County is less Multiracial than neighboring St. Clair County (5% Multiracial).

Source: 2020 Census State Redistricting Data and Census TIGER/Line Shapefiles.