Greene County Demographics

A map of Greene County's Population by Race

Greene County, Illinois had a population of 11,985 in 2020. It was 95.5% White, 0.2% Black, 0.2% Asian, 0.9% Hispanic, 0.3% Native American/Other, and 2.9% Multiracial. This map presents the population of Greene County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Greene County is the 84th most populous county of the 102 counties in Illinois.

Greene County's White Population

11,451 residents of Greene County identify as White, or 95.5%. This makes the White share of the population of Greene County considerably larger than the White share of the population of Illinois (58.3% White). Of the 102 counties in Illinois, Greene County is ranked #5 in terms of White residents as a share of the population.

Greene County is more White than neighboring Jersey County (93.5% White), Calhoun County (95% White), Morgan County (86.6% White), and Macoupin County (93.1% White). Greene County is less White than neighboring Scott County (95.9% White).

Greene County's Black Population

18 residents of Greene County identify as Black, or 0.2%. This makes the Black share of the population of Greene County less than the Black share of the population of Illinois (13.9% Black). Of the 102 counties in Illinois, Greene County is ranked #101 in terms of Black residents as a share of the population.

Greene County is more Black than neighboring Scott County (0.1% Black). Greene County is less Black than neighboring Jersey County (0.7% Black), Morgan County (6% Black), and Macoupin County (0.8% Black).

Greene County's Asian Population

21 residents of Greene County identify as Asian, or 0.2%. This makes the Asian share of the population of Greene County slightly less than the Asian share of the population of Illinois (5.8% Asian). Of the 102 counties in Illinois, Greene County is ranked #97 in terms of Asian residents as a share of the population.

Greene County is less Asian than neighboring Jersey County (0.3% Asian), Morgan County (0.8% Asian), and Macoupin County (0.4% Asian).

Greene County's Hispanic Population

106 residents of Greene County identify as Hispanic, or 0.9%. This makes the Hispanic share of the population of Greene County less than the Hispanic share of the population of Illinois (18.2% Hispanic). Of the 102 counties in Illinois, Greene County is ranked #102 in terms of Hispanic residents as a share of the population.

Greene County is less Hispanic than neighboring Jersey County (1.5% Hispanic), Scott County (1% Hispanic), Calhoun County (1.4% Hispanic), Morgan County (2.5% Hispanic), and Macoupin County (1.3% Hispanic).

Greene County's Native American/Other Population

39 residents of Greene County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 0.3%. This makes the Native American/Other share of the population of Greene 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, Greene County is ranked #82 in terms of Native American/Other residents as a share of the population.

Greene County is more Native American/Other than neighboring Scott County (0.1% Native American/Other), and Calhoun County (0.2% Native American/Other). Greene County is less Native American/Other than neighboring Morgan County (0.5% Native American/Other), and Macoupin County (0.4% Native American/Other).

Greene County's Multiracial Population

350 residents of Greene County identify as Multiracial, or 2.9%. This makes the Multiracial share of the population of Greene County roughly similar to the Multiracial share of the population of Illinois (3.2% Multiracial). Of the 102 counties in Illinois, Greene County is ranked #73 in terms of Multiracial residents as a share of the population.

Greene County is more Multiracial than neighboring Scott County (2.6% Multiracial). Greene County is less Multiracial than neighboring Jersey County (3.7% Multiracial), Calhoun County (3% Multiracial), Morgan County (3.7% Multiracial), and Macoupin County (4.1% Multiracial).

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