Counties in Illinois by black or African American population share

Alexander County had the highest black or African American population share of 102 counties in 2022, at 33.2%. Scott County had the lowest, at 0%. The median was 2.6% and the figure for Illinois was 13.7%. Source: the U.S. Census Bureau.

Highest33.2Alexander County
Median2.6102 counties
Illinois13.7History

Top 40 counties, 2022

CSVChart (SVG)

Alexander CountyAlexander County: 33.2 %33.2Pulaski CountyPulaski County: 31.4 %31.4St. Clair CountySt. Clair County: 28.1 %28.1Cook CountyCook County: 22.4 %22.4Peoria CountyPeoria County: 17.5 %17.5Macon CountyMacon County: 16.9 %16.9Brown CountyBrown County: 16.4 %16.4Kankakee CountyKankakee County: 14.5 %14.5Vermilion CountyVermilion County: 14.5 %14.5Jackson CountyJackson County: 14.4 %14.4Champaign CountyChampaign County: 13 %13Winnebago CountyWinnebago County: 13 %13Sangamon CountySangamon County: 12.6 %12.6Will CountyWill County: 11.3 %11.3Rock Island CountyRock Island County: 10.2 %10.2Johnson CountyJohnson County: 8.9 %8.9Stephenson CountyStephenson County: 8.7 %8.7Madison CountyMadison County: 8.5 %8.5McLean CountyMcLean County: 8.4 %8.4Lawrence CountyLawrence County: 8 %8Knox CountyKnox County: 8 %8Randolph CountyRandolph County: 7.9 %7.9Perry CountyPerry County: 7.9 %7.9Kendall CountyKendall County: 7.8 %7.8DeKalb CountyDeKalb County: 7.5 %7.5Bond CountyBond County: 6.9 %6.9Jefferson CountyJefferson County: 6.5 %6.5Lake CountyLake County: 6.5 %6.5Massac CountyMassac County: 6.3 %6.3Logan CountyLogan County: 6 %6Lee CountyLee County: 5.3 %5.3McDonough CountyMcDonough County: 5.2 %5.2Kane CountyKane County: 5 %5Morgan CountyMorgan County: 5 %5DuPage CountyDuPage County: 4.8 %4.8Crawford CountyCrawford County: 4.5 %4.5Marion CountyMarion County: 4.3 %4.3Adams CountyAdams County: 3.9 %3.9Warren CountyWarren County: 3.8 %3.8Coles CountyColes County: 3.6 %3.6
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2022 (%)Change on 2021
1Alexander County33.2-0.2 pts
2Pulaski County31.4+1.4 pts
3St. Clair County28.1-0.9 pts
4Cook County22.4-0.2 pts
5Peoria County17.5-0.1 pts
6Macon County16.9+0.8 pts
7Brown County16.4-1.9 pts
8Kankakee County14.50 pts
8Vermilion County14.5+0.2 pts
10Jackson County14.4-0.1 pts
11Champaign County13+0.1 pts
12Winnebago County13+0.1 pts
13Sangamon County12.6-0.1 pts
14Will County11.3+0.1 pts
15Rock Island County10.2-0.1 pts
16Johnson County8.9-0.3 pts
17Stephenson County8.7-0.7 pts
18Madison County8.50 pts
19McLean County8.4+0.2 pts
20Lawrence County8-1.6 pts
21Knox County8-0.6 pts
22Randolph County7.9-2.7 pts
23Perry County7.9-0.6 pts
24Kendall County7.8+0.2 pts
25DeKalb County7.5-0.1 pts
26Bond County6.90 pts
27Jefferson County6.5-1.7 pts
28Lake County6.50 pts
29Massac County6.3+0.5 pts
30Logan County6-1.1 pts
31Lee County5.3-0.1 pts
32McDonough County5.2+0.1 pts
33Kane County5-0.2 pts
34Morgan County5-1.3 pts
35DuPage County4.8-0 pts
36Crawford County4.5-0.7 pts
37Marion County4.3+0.5 pts
38Adams County3.9+0.1 pts
39Warren County3.8-0.1 pts
40Coles County3.6-0.3 pts
40Livingston County3.6-0 pts
42Fayette County3.5-0.9 pts
43Schuyler County3.4-1.3 pts
44Cass County3.4+0.1 pts
45Pope County3.3+0.2 pts
46Carroll County3.3+0.4 pts
47Williamson County3.3-0.8 pts
48Clinton County2.9-0.4 pts
49Montgomery County2.8-1.2 pts
50LaSalle County2.70 pts
51Fulton County2.6-0.6 pts
52Christian County2.6+1 pts
53Saline County2.5-0.2 pts
54Boone County2.1-0.3 pts
55Henry County2.1+0.1 pts
56Grundy County1.8+0.5 pts
57McHenry County1.50 pts
58Union County1.5+0.1 pts
59Tazewell County1.2-0.2 pts
60Douglas County1.1+0.3 pts
60Stark County1.1+0.2 pts
62Hardin County1.1-0.4 pts
62Whiteside County1.10 pts
64Macoupin County1.10 pts
64Ogle County1.1-0.1 pts
66Moultrie County10 pts
67Wabash County1+0.9 pts
68Iroquois County10 pts
69Menard County0.90 pts
70Piatt County0.9+0.4 pts
71Greene County0.9-0.3 pts
72De Witt County0.8-0.3 pts
73Clark County0.8+0.1 pts
74Jo Daviess County0.8+0.1 pts
75White County0.80 pts
76Calhoun County0.7+0.1 pts
77Hancock County0.7+0.1 pts
78Jersey County0.7+0.3 pts
79Pike County0.7-0.2 pts
80Wayne County0.7-0.5 pts
81Woodford County0.6-0.1 pts
82Monroe County0.6+0.4 pts
82Richland County0.6+0.1 pts
84Bureau County0.60 pts
84Mercer County0.6+0.1 pts
86Effingham County0.6+0.1 pts
87Washington County0.5-0.1 pts
88Ford County0.5-0.2 pts
89Marshall County0.5-0.1 pts
90Mason County0.50 pts
91Edgar County0.5+0.1 pts
92Clay County0.5-0 pts
93Franklin County0.4-0.2 pts
94Gallatin County0.3+0.1 pts
95Putnam County0.3+0.2 pts
96Shelby County0.3-0.1 pts
97Jasper County0.2-0 pts
98Henderson County0.20 pts
99Edwards County0.1-0.1 pts
100Cumberland County0.10 pts
101Hamilton County0.1-0.1 pts
102Scott County0-0.2 pts

Other periods

About this ranking

People who are not Hispanic or Latino and report Black or African American as their only race, as a percentage of the total population. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

US federal statistics ask about Hispanic origin and race separately, and Hispanic or Latino people can be of any race. The shares for White, Black and Asian count people who are not Hispanic and report that race alone, so the published shares do not add up to 100 (people of two or more races and other races are not shown). Calculated from counts in ACS table B03002, which are stored as inputs. EU and Spanish statistics do not collect race.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B03002: Black or African American alone, not Hispanic or Latino, as a percentage of the total population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b03002.dat. Retrieved 2026-10-09.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank Counties in Illinois by black or African American population share using official data, and cite the source.
rank_places {"indicator":"black_share","level":"province","within":"Illinois","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=black_share&level=province&within=Illinois&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

Which county has the highest black or African American population share?

Alexander County, with 33.2% in 2022, according to the U.S. Census Bureau.

Which county has the lowest black or African American population share?

Scott County, with 0% in 2022.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B03002: Black or African American alone, not Hispanic or Latino, as a percentage of the total population, calculated with stored inputs. Retrieved 2026-10-09.

Black or African American population share: other rankings

Counties in Illinois: more rankings