Demographics Table
Demographic Data Report for Illinois by County
Population: Age under 18
All Races (includes Hispanic), Both Sexes
2019-2023 American Community Survey 5-Year Data
Sorted by Count
County
|
2023 Rural-Urban Continuum Codes Φ
|
Value (Percent)
|
People (Age Under 18)
|
Rank within US (of 3143 counties)
|
|---|---|---|---|---|
| Illinois | N/A | 22.1 | 2,808,879 | 25 of 52 |
| United States | N/A | 22.2 | 73,645,238 | N/A |
| Hardin County | Rural | 13.6 | 494 | 3,102 |
| Pope County | Rural | 15.7 | 589 | 3,014 |
| Calhoun County | Urban | 20.4 | 897 | 2,187 |
| Gallatin County | Rural | 19.8 | 962 | 2,359 |
| Scott County | Rural | 21.4 | 1,038 | 1,821 |
| Pulaski County | Rural | 20.5 | 1,040 | 2,151 |
| Alexander County | Urban | 21.7 | 1,092 | 1,683 |
| Brown County | Rural | 17.4 | 1,102 | 2,857 |
| Putnam County | Rural | 19.7 | 1,103 | 2,378 |
| Stark County | Urban | 21.7 | 1,153 | 1,683 |
| Schuyler County | Rural | 17.3 | 1,180 | 2,869 |
| Henderson County | Rural | 18.9 | 1,188 | 2,581 |
| Edwards County | Rural | 22.5 | 1,379 | 1,340 |
| Hamilton County | Rural | 22.7 | 1,812 | 1,250 |
| Jasper County | Rural | 22.4 | 2,070 | 1,385 |
| Johnson County | Rural | 17.8 | 2,374 | 2,803 |
| Wabash County | Rural | 21.8 | 2,438 | 1,646 |
| Cumberland County | Rural | 23.8 | 2,475 | 786 |
| Marshall County | Urban | 21.2 | 2,479 | 1,907 |
| Greene County | Rural | 21.4 | 2,534 | 1,821 |
| Mason County | Rural | 20.6 | 2,649 | 2,123 |
| Menard County | Urban | 22.1 | 2,687 | 1,518 |
| Carroll County | Rural | 18.1 | 2,827 | 2,747 |
| Lawrence County | Rural | 18.8 | 2,852 | 2,608 |
| Washington County | Rural | 21.0 | 2,872 | 1,977 |
| Massac County | Urban | 21.2 | 2,956 | 1,907 |
| White County | Rural | 21.8 | 2,992 | 1,646 |
| Bond County | Urban | 18.2 | 3,029 | 2,731 |
| Clay County | Rural | 23.0 | 3,034 | 1,127 |
| Ford County | Urban | 23.3 | 3,120 | 1,001 |
| Cass County | Rural | 24.5 | 3,141 | 572 |
| Edgar County | Rural | 19.7 | 3,281 | 2,378 |
| Mercer County | Urban | 21.1 | 3,293 | 1,936 |
| De Witt County | Rural | 21.5 | 3,323 | 1,784 |
| Pike County | Rural | 23.0 | 3,369 | 1,127 |
| Clark County | Rural | 22.3 | 3,423 | 1,429 |
| Wayne County | Rural | 22.6 | 3,609 | 1,288 |
| Richland County | Rural | 23.0 | 3,611 | 1,127 |
| Union County | Rural | 21.5 | 3,643 | 1,784 |
| Piatt County | Urban | 21.9 | 3,661 | 1,606 |
| Hancock County | Rural | 21.1 | 3,680 | 1,936 |
| Warren County | Rural | 22.2 | 3,684 | 1,469 |
| Moultrie County | Rural | 25.5 | 3,694 | 355 |
| Crawford County | Rural | 20.2 | 3,756 | 2,249 |
| Perry County | Rural | 19.5 | 4,060 | 2,445 |
| Jo Daviess County | Rural | 18.5 | 4,062 | 2,670 |
| Jersey County | Urban | 19.9 | 4,256 | 2,329 |
| Fayette County | Rural | 20.5 | 4,379 | 2,151 |
| Shelby County | Rural | 21.4 | 4,458 | 1,821 |
| Douglas County | Rural | 24.6 | 4,836 | 545 |
| McDonough County | Rural | 17.9 | 4,853 | 2,778 |
| Saline County | Rural | 20.9 | 4,887 | 2,008 |
| Logan County | Rural | 19.5 | 5,447 | 2,445 |
| Montgomery County | Rural | 20.1 | 5,649 | 2,274 |
| Iroquois County | Rural | 21.7 | 5,802 | 1,683 |
| Randolph County | Rural | 20.4 | 6,138 | 2,187 |
| Morgan County | Rural | 19.3 | 6,303 | 2,489 |
| Fulton County | Rural | 19.7 | 6,566 | 2,378 |
| Christian County | Rural | 20.0 | 6,734 | 2,300 |
| Lee County | Rural | 19.9 | 6,778 | 2,329 |
| Bureau County | Rural | 21.0 | 6,922 | 1,977 |
| Monroe County | Urban | 22.1 | 7,729 | 1,518 |
| Livingston County | Rural | 22.1 | 7,866 | 1,518 |
| Clinton County | Urban | 21.6 | 7,966 | 1,725 |
| Jefferson County | Rural | 22.4 | 8,263 | 1,385 |
| Franklin County | Rural | 22.2 | 8,323 | 1,469 |
| Effingham County | Rural | 24.2 | 8,348 | 647 |
| Coles County | Rural | 18.3 | 8,521 | 2,702 |
| Marion County | Rural | 23.6 | 8,800 | 866 |
| Woodford County | Urban | 24.0 | 9,208 | 718 |
| Macoupin County | Urban | 20.7 | 9,244 | 2,085 |
| Stephenson County | Rural | 21.3 | 9,395 | 1,876 |
| Knox County | Rural | 20.2 | 9,949 | 2,249 |
| Jackson County | Rural | 19.0 | 10,007 | 2,557 |
| Henry County | Urban | 22.0 | 10,793 | 1,567 |
| Ogle County | Rural | 22.4 | 11,548 | 1,385 |
| Whiteside County | Rural | 22.0 | 12,153 | 1,567 |
| Boone County | Urban | 24.2 | 12,886 | 647 |
| Grundy County | Urban | 24.7 | 13,072 | 530 |
| Williamson County | Rural | 21.5 | 14,415 | 1,784 |
| Adams County | Rural | 22.7 | 14,793 | 1,250 |
| Vermilion County | Rural | 23.5 | 17,200 | 900 |
| DeKalb County | Urban | 21.8 | 21,906 | 1,646 |
| La Salle County | Rural | 21.3 | 23,234 | 1,876 |
| Macon County | Urban | 22.6 | 23,234 | 1,288 |
| Kankakee County | Urban | 23.0 | 24,569 | 1,127 |
| Tazewell County | Urban | 22.3 | 29,099 | 1,429 |
| Rock Island County | Urban | 22.5 | 32,223 | 1,340 |
| McLean County | Urban | 21.5 | 36,679 | 1,784 |
| Kendall County | Urban | 27.5 | 37,150 | 165 |
| Champaign County | Urban | 19.3 | 39,730 | 2,489 |
| Sangamon County | Urban | 22.0 | 42,980 | 1,567 |
| Peoria County | Urban | 23.9 | 43,056 | 750 |
| Madison County | Urban | 21.5 | 56,984 | 1,784 |
| St. Clair County | Urban | 23.3 | 59,327 | 1,001 |
| Winnebago County | Urban | 23.6 | 66,750 | 866 |
| McHenry County | Urban | 23.0 | 71,656 | 1,127 |
| Kane County | Urban | 24.4 | 125,866 | 594 |
| Will County | Urban | 24.0 | 167,605 | 718 |
| Lake County | Urban | 23.6 | 168,098 | 866 |
| DuPage County | Urban | 22.4 | 207,574 | 1,385 |
| Cook County | Urban | 21.4 | 1,110,965 | 1,821 |
Notes:
Created by statecancerprofiles.cancer.gov on 11/10/2025 12:51 pm.
Φ Rural-Urban Continuum Codes provided by the USDA.
Source: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Population: Age under 18, see the dictionary.
Data for United States does not include Puerto Rico.
Created by statecancerprofiles.cancer.gov on 11/10/2025 12:51 pm.
Φ Rural-Urban Continuum Codes provided by the USDA.
Source: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Population: Age under 18, see the dictionary.
Data for United States does not include Puerto Rico.