Counties in Illinois by child poverty rate, under 18 (US official measure)
Alexander County had the highest child poverty rate, under 18 (US official measure) of 102 counties in 2018, at 44.5%. Monroe County had the lowest, at 4.3%. The median was 17.2% and the figure for Illinois was 16.2%. Source: the U.S. Census Bureau.
Map of counties, 2018
- Under 13
- 13 to 15
- 15 to 17
- 17 to 20
- 20 to 23
- 23 and over
Top 40 counties, 2018
Full ranking
| Rank | Counties | 2018 (%) | Change on 2017 |
|---|---|---|---|
| 1 | Alexander County | 44.5 | -6 pts |
| 2 | Pulaski County | 33.4 | -2.7 pts |
| 3 | Hardin County | 32 | -4.2 pts |
| 4 | Gallatin County | 31.9 | +1.4 pts |
| 5 | Marion County | 30.2 | +4.5 pts |
| 6 | Saline County | 29.7 | +0.7 pts |
| 7 | Vermilion County | 29.5 | -1.5 pts |
| 8 | Jackson County | 28.9 | -2.9 pts |
| 9 | Winnebago County | 27.2 | +5.8 pts |
| 10 | Pope County | 27.1 | -0.7 pts |
| 11 | Macon County | 27 | +5 pts |
| 12 | Massac County | 26.1 | +1.4 pts |
| 13 | Franklin County | 26 | -0.6 pts |
| 14 | Jefferson County | 25.5 | -0.1 pts |
| 15 | Union County | 24.5 | -0.6 pts |
| 16 | Mason County | 23.4 | +2 pts |
| 16 | Perry County | 23.4 | +2.9 pts |
| 18 | Morgan County | 23.1 | +2.7 pts |
| 19 | McDonough County | 22.9 | +0.9 pts |
| 20 | Peoria County | 22.8 | +2.7 pts |
| 21 | Knox County | 22.7 | -0.7 pts |
| 22 | St. Clair County | 22 | -2.1 pts |
| 23 | Rock Island County | 21.9 | +2.2 pts |
| 24 | Coles County | 21.8 | -0.7 pts |
| 25 | Wayne County | 21 | 0 pts |
| 26 | Fayette County | 20.9 | -2.8 pts |
| 26 | Lawrence County | 20.9 | -2.5 pts |
| 26 | Richland County | 20.9 | +0.2 pts |
| 26 | Stephenson County | 20.9 | -4.9 pts |
| 30 | Fulton County | 20.5 | 0 pts |
| 31 | Kankakee County | 20.2 | -0.1 pts |
| 31 | LaSalle County | 20.2 | -1.8 pts |
| 33 | Montgomery County | 20.1 | -2.8 pts |
| 34 | Sangamon County | 20 | -2.9 pts |
| 34 | Williamson County | 20 | -1 pts |
| 36 | Greene County | 19.9 | -1.1 pts |
| 37 | Hamilton County | 19.6 | -0.3 pts |
| 37 | Pike County | 19.6 | -3.3 pts |
| 39 | Edgar County | 19.5 | -1 pts |
| 40 | Macoupin County | 19.3 | -1.2 pts |
| 40 | White County | 19.3 | -4.2 pts |
| 42 | Clay County | 18.8 | -0.3 pts |
| 42 | Cook County | 18.8 | -1.7 pts |
| 42 | Wabash County | 18.8 | +0.1 pts |
| 45 | Bond County | 18.3 | +1.4 pts |
| 46 | Christian County | 17.9 | -1.9 pts |
| 47 | Randolph County | 17.8 | -4.5 pts |
| 48 | Champaign County | 17.5 | +0.2 pts |
| 49 | De Witt County | 17.4 | -1.1 pts |
| 50 | Madison County | 17.3 | -1.3 pts |
| 51 | Stark County | 17.2 | +0.3 pts |
| 51 | Warren County | 17.2 | +0.2 pts |
| 53 | Bureau County | 17.1 | -1.1 pts |
| 53 | Crawford County | 17.1 | -0.4 pts |
| 53 | Whiteside County | 17.1 | -2.1 pts |
| 56 | Carroll County | 17 | -2.2 pts |
| 56 | Logan County | 17 | -0.4 pts |
| 58 | Hancock County | 16.8 | -2 pts |
| 59 | Henry County | 16.6 | +0.5 pts |
| 59 | Iroquois County | 16.6 | -1.8 pts |
| 61 | Johnson County | 16.4 | -3.3 pts |
| 62 | Livingston County | 16.3 | -1.1 pts |
| 63 | Clark County | 16.2 | -0.6 pts |
| 64 | Henderson County | 16.1 | -1 pts |
| 65 | Adams County | 15.9 | -2 pts |
| 65 | Ford County | 15.9 | -1.4 pts |
| 67 | Cass County | 15.8 | -2.3 pts |
| 68 | Jasper County | 15.4 | -1.2 pts |
| 69 | Calhoun County | 15.3 | +1.5 pts |
| 70 | Cumberland County | 15.2 | -0.7 pts |
| 71 | Scott County | 15 | -2.3 pts |
| 72 | Schuyler County | 14.9 | -1.4 pts |
| 73 | Brown County | 14.8 | -0.4 pts |
| 74 | Edwards County | 14.7 | -2.6 pts |
| 75 | Menard County | 14.5 | +0.5 pts |
| 76 | Lee County | 14.3 | -1.6 pts |
| 77 | Jersey County | 13.6 | -1.2 pts |
| 77 | Marshall County | 13.6 | -1.3 pts |
| 79 | Boone County | 13.5 | +0.8 pts |
| 80 | Moultrie County | 13.4 | -0.4 pts |
| 81 | Douglas County | 13.3 | -0.9 pts |
| 81 | Shelby County | 13.3 | -0.5 pts |
| 83 | DeKalb County | 13.2 | 0 pts |
| 84 | Effingham County | 12.7 | -0.5 pts |
| 85 | Mercer County | 12.6 | -3.2 pts |
| 86 | Putnam County | 12.5 | -1.5 pts |
| 87 | Jo Daviess County | 12.2 | -1.5 pts |
| 87 | Tazewell County | 12.2 | +0.8 pts |
| 89 | Kane County | 11.9 | -1.7 pts |
| 90 | Ogle County | 11.2 | -2.8 pts |
| 91 | McLean County | 10.5 | -3 pts |
| 91 | Washington County | 10.5 | -1.5 pts |
| 93 | Lake County | 10.3 | +0.3 pts |
| 94 | Clinton County | 10.2 | -0.3 pts |
| 95 | Will County | 8.6 | -0.5 pts |
| 96 | Grundy County | 8.3 | -0.6 pts |
| 97 | Piatt County | 8.2 | 0 pts |
| 98 | DuPage County | 7.9 | +0.3 pts |
| 99 | McHenry County | 7.8 | +0.6 pts |
| 100 | Woodford County | 7.7 | 0 pts |
| 101 | Kendall County | 5.4 | -0.4 pts |
| 102 | Monroe County | 4.3 | -0.5 pts |
Other periods
About this ranking
People under 18 in families or living alone with income below the official US poverty thresholds, as a percentage of people under 18 whose poverty status can be determined. United States: Census Bureau Small Area Income and Poverty Estimates (SAIPE) for the nation, states and counties.
A model-based single-year estimate; the national figure is the one-year American Community Survey estimate. The Census Bureau advises comparing years from 2006 on only. Absolute thresholds set by the US government, so not comparable with the EU at_risk_of_poverty_rate. The rate for all ages is 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 under age 18 in poverty, nation, states and counties. https://www2.census.gov/programs-surveys/saipe/datasets/2018/2018-state-and-county/est18all.txt. Retrieved 2026-10-12.
Citation styles
APA 7
U.S. Census Bureau. (2026). Small Area Income and Poverty Estimates (SAIPE): percent of people under age 18 in poverty, nation, states and counties (Counties in Illinois by child poverty rate, under 18 (US official measure), 2018) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/saipe/datasets/2018/2018-state-and-county/est18all.txt
MLA 9
Small Area Income and Poverty Estimates (SAIPE): percent of people under age 18 in poverty, nation, states and counties, Counties in Illinois by child poverty rate, under 18 (US official measure), 2018. U.S. Census Bureau, 27 Jan. 2026, https://www2.census.gov/programs-surveys/saipe/datasets/2018/2018-state-and-county/est18all.txt. Invokely, https://invokely.ai/rankings/child-poverty-rate-under-18/illinois-counties?period=2018. Accessed 12 Oct. 2026.
Chicago (author-date)
U.S. Census Bureau. 2026. Small Area Income and Poverty Estimates (SAIPE): percent of people under age 18 in poverty, nation, states and counties. Counties in Illinois by child poverty rate, under 18 (US official measure), 2018. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/saipe/datasets/2018/2018-state-and-county/est18all.txt. Also distributed by Invokely, https://invokely.ai/rankings/child-poverty-rate-under-18/illinois-counties?period=2018.
Harvard
U.S. Census Bureau (2026) Small Area Income and Poverty Estimates (SAIPE): percent of people under age 18 in poverty, nation, states and counties, Counties in Illinois by child poverty rate, under 18 (US official measure), 2018 [Dataset]. Available at: https://www2.census.gov/programs-surveys/saipe/datasets/2018/2018-state-and-county/est18all.txt, via Invokely: https://invokely.ai/rankings/child-poverty-rate-under-18/illinois-counties?period=2018 (Accessed: 12 October 2026).
BibTeX
@misc{census_counties_in_illinois_by_2018,
author = {{U.S. Census Bureau}},
title = {{Small Area Income and Poverty Estimates (SAIPE): percent of people under age 18 in poverty, nation, states and counties: Counties in Illinois by child poverty rate, under 18 (US official measure), 2018}},
year = {2026},
howpublished = {Data set},
url = {https://www2.census.gov/programs-surveys/saipe/datasets/2018/2018-state-and-county/est18all.txt},
urldate = {2026-10-12},
note = {Accessed via Invokely, https://invokely.ai/rankings/child-poverty-rate-under-18/illinois-counties?period=2018. Publisher attribution: U.S. Census Bureau. Small Area Income and Poverty Estimates (SAIPE): percent of people under age 18 in poverty, nation, states and counties. https://www2.census.gov/programs-surveys/saipe/datasets/2018/2018-state-and-county/est18all.txt. Retrieved 2026-10-12.},
}
RIS
TY - DATA
AU - U.S. Census Bureau
TI - Small Area Income and Poverty Estimates (SAIPE): percent of people under age 18 in poverty, nation, states and counties: Counties in Illinois by child poverty rate, under 18 (US official measure), 2018
PY - 2026
DA - 2026/01/27
PB - U.S. Census Bureau
DB - Invokely
UR - https://www2.census.gov/programs-surveys/saipe/datasets/2018/2018-state-and-county/est18all.txt
L2 - https://invokely.ai/rankings/child-poverty-rate-under-18/illinois-counties?period=2018
Y2 - 2026/10/12
N1 - Accessed via Invokely, https://invokely.ai/rankings/child-poverty-rate-under-18/illinois-counties?period=2018.
N1 - Publisher attribution: U.S. Census Bureau. Small Area Income and Poverty Estimates (SAIPE): percent of people under age 18 in poverty, nation, states and counties. https://www2.census.gov/programs-surveys/saipe/datasets/2018/2018-state-and-county/est18all.txt. Retrieved 2026-10-12.
ER -
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 child poverty rate, under 18 (US official measure) using official data, and cite the source.
rank_places {"indicator":"child_poverty_rate","level":"province","within":"Illinois","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=child_poverty_rate&level=province&within=Illinois&limit=10
Questions
Which county has the highest child poverty rate, under 18 (US official measure)?
Alexander County, with 44.5% in 2018, according to the U.S. Census Bureau.
Which county has the lowest child poverty rate, under 18 (US official measure)?
Monroe County, with 4.3% 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 under age 18 in poverty, nation, states and counties. Retrieved 2026-10-12.