Counties in Illinois by poverty rate

Alexander County had the highest poverty rate of 102 counties in 2018, at 27.6%. Kendall County had the lowest, at 4.2%. The median was 12.6% and the figure for Illinois was 12.1%. Source: the U.S. Census Bureau.

Highest27.6Alexander County
Median12.6102 counties
Illinois12.1History

Top 40 counties, 2018

CSVChart (SVG)

Alexander CountyAlexander County: 27.6 %27.6Jackson CountyJackson County: 25.7 %25.7McDonough CountyMcDonough County: 21.9 %21.9Gallatin CountyGallatin County: 20.5 %20.5Saline CountySaline County: 20.3 %20.3Coles CountyColes County: 20 %20Hardin CountyHardin County: 20 %20Pulaski CountyPulaski County: 19.7 %19.7Marion CountyMarion County: 19.5 %19.5Franklin CountyFranklin County: 19.4 %19.4Vermilion CountyVermilion County: 19.3 %19.3Champaign CountyChampaign County: 19.2 %19.2Pope CountyPope County: 18.6 %18.6Perry CountyPerry County: 17.8 %17.8Lawrence CountyLawrence County: 17.5 %17.5Macon CountyMacon County: 17.4 %17.4Union CountyUnion County: 17.4 %17.4Massac CountyMassac County: 17.2 %17.2Peoria CountyPeoria County: 16.6 %16.6Knox CountyKnox County: 16.4 %16.4Jefferson CountyJefferson County: 16.3 %16.3Kankakee CountyKankakee County: 16.2 %16.2Winnebago CountyWinnebago County: 16.1 %16.1Morgan CountyMorgan County: 15.2 %15.2Richland CountyRichland County: 15 %15Fayette CountyFayette County: 14.9 %14.9Brown CountyBrown County: 14.8 %14.8St. Clair CountySt. Clair County: 14.8 %14.8Mason CountyMason County: 14.6 %14.6McLean CountyMcLean County: 14.4 %14.4Montgomery CountyMontgomery County: 14.4 %14.4Wabash CountyWabash County: 14.4 %14.4Williamson CountyWilliamson County: 14.4 %14.4Clay CountyClay County: 14.3 %14.3Fulton CountyFulton County: 14.2 %14.2Rock Island CountyRock Island County: 14.2 %14.2Pike CountyPike County: 14.1 %14.1Greene CountyGreene County: 13.9 %13.9Bond CountyBond County: 13.8 %13.8Cook CountyCook County: 13.8 %13.8
%. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

RankCounties2018 (%)Change on 2017
1Alexander County27.6-2.7 pts
2Jackson County25.7-3.5 pts
3McDonough County21.9+3.3 pts
4Gallatin County20.5+1.6 pts
5Saline County20.3+1.7 pts
6Coles County20+0.5 pts
6Hardin County20-1.6 pts
8Pulaski County19.7-3.2 pts
9Marion County19.5+3.4 pts
10Franklin County19.4-0.1 pts
11Vermilion County19.3-0.1 pts
12Champaign County19.20 pts
13Pope County18.6+0.2 pts
14Perry County17.8+2.2 pts
15Lawrence County17.5+0.2 pts
16Macon County17.4+3.1 pts
16Union County17.4-1.6 pts
18Massac County17.2+1.9 pts
19Peoria County16.6+1.2 pts
20Knox County16.4+0.3 pts
21Jefferson County16.3-1.1 pts
22Kankakee County16.2+1.2 pts
23Winnebago County16.1+1.9 pts
24Morgan County15.2+1.7 pts
25Richland County15-0.4 pts
26Fayette County14.9-3.3 pts
27Brown County14.8-0.1 pts
27St. Clair County14.8-1.2 pts
29Mason County14.6+0.9 pts
30McLean County14.4-1.2 pts
30Montgomery County14.4-1.1 pts
30Wabash County14.4+0.6 pts
30Williamson County14.4-0.9 pts
34Clay County14.3+1.1 pts
35Fulton County14.2-1 pts
35Rock Island County14.2+1.3 pts
37Pike County14.1-1.8 pts
38Greene County13.9-0.9 pts
39Bond County13.8+0.5 pts
39Cook County13.8-0.8 pts
39Madison County13.8-0.6 pts
39Randolph County13.8-2 pts
39Wayne County13.8-0.2 pts
44LaSalle County13.6-0.7 pts
45Edgar County13.5-0.3 pts
46DeKalb County13.1-1 pts
46Sangamon County13.1-2.3 pts
48Macoupin County12.9-0.9 pts
48Warren County12.9+1.2 pts
50Stephenson County12.7-4 pts
51Livingston County12.6-0.2 pts
52Christian County12.5-1.1 pts
53Adams County12.3-1.2 pts
53Hamilton County12.3-0.6 pts
53White County12.3-3 pts
56Johnson County12.2-2.8 pts
57Cass County12-1.3 pts
58Crawford County11.8-2 pts
59Cumberland County11.7+1.4 pts
60Bureau County11.6+0.9 pts
61Henry County11.5+0.5 pts
62Carroll County11.4-0.1 pts
62Schuyler County11.4-0.4 pts
64Henderson County11.3+0.1 pts
65Stark County11.2+0.1 pts
66Clark County11.1+0.1 pts
66Edwards County11.1+0.2 pts
66Hancock County11.1-0.6 pts
69Calhoun County11+0.5 pts
69De Witt County11-0.7 pts
71Logan County10.9-1.3 pts
72Whiteside County10.5-2.4 pts
73Scott County10.3-1.9 pts
74Jasper County10.2-1.7 pts
74Shelby County10.2-0.1 pts
76Lee County10.1-1.3 pts
77Iroquois County9.9-3 pts
78Effingham County9.70 pts
78Ford County9.7-1.9 pts
80Moultrie County9.6+0.6 pts
80Tazewell County9.6+0.5 pts
82Marshall County9.5-0.2 pts
83Boone County9.2+0.4 pts
83Douglas County9.2-0.6 pts
85Menard County9+0.3 pts
85Mercer County9-1.6 pts
87Jersey County8.9-1.4 pts
88Kane County8.6-0.6 pts
89Putnam County8.5+0.5 pts
90Ogle County8.4-1.3 pts
91Clinton County8.20 pts
92Lake County8+0.3 pts
93Jo Daviess County7.8-1.5 pts
94Washington County7.4-0.7 pts
95Piatt County7.3+1 pts
96Woodford County7.1+1.3 pts
97DuPage County6.6+0.4 pts
98Will County6.4-0.6 pts
99Grundy County5.9-1.2 pts
99McHenry County5.9-0.2 pts
101Monroe County4.3-0.6 pts
102Kendall County4.2-0.6 pts

Other periods

About this ranking

People living in families or alone with income below the official US poverty thresholds, as a percentage of people whose poverty status can be determined. United States: Census Bureau Small Area Income and Poverty Estimates (SAIPE), all ages.

Absolute thresholds set by the US government, so not comparable with the EU at_risk_of_poverty_rate.

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. Small Area Income and Poverty Estimates (SAIPE): percent of people of all ages in poverty, states and counties. https://www2.census.gov/programs-surveys/saipe/datasets/2018/2018-state-and-county/est18all.txt. Retrieved 2026-10-08.

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 poverty rate using official data, and cite the source.
rank_places {"indicator":"poverty_rate","level":"province","within":"Illinois","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=poverty_rate&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 poverty rate?

Alexander County, with 27.6% in 2018, according to the U.S. Census Bureau.

Which county has the lowest poverty rate?

Kendall County, with 4.2% in 2018.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Small Area Income and Poverty Estimates (SAIPE): percent of people of all ages in poverty, states and counties. Retrieved 2026-10-08.

Poverty rate (US official measure): other rankings

Counties in Illinois: more rankings