RANKING · 2024 ACS · 102 SHOWN OF 102

Most uninsured people, Illinois counties

Illinois counties with the most residents lacking health insurance, as of the 2024 American Community Survey. Ranked by number of people, not the uninsured rate. This list covers the 102 counties in Illinois that qualify, ranked against each other statewide.

IllinoisAll states All rankings

SAME RANKING BYCities States Metros

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Largest senior population Most unmarried people Most unmarried men

RANKPLACESTATEPOPUNINSURED RESIDENTSVS 2020

01Cook County, ILIL5,194,625454,597+1%

02Lake County, ILIL719,33948,085+9%

03DuPage County, ILIL934,29847,841−3%

04Kane County, ILIL525,75740,060−7%

05Will County, ILIL712,25336,416+4%

06Winnebago County, ILIL283,67417,277+1%

07McHenry County, ILIL317,75114,084−7%

08St. Clair County, ILIL250,70812,650−17%

09Madison County, ILIL263,11012,283−5%

10Champaign County, ILIL209,97210,690+17%

11Peoria County, ILIL178,55310,225−7%

12Rock Island County, ILIL141,8698,505+9%

13McLean County, ILIL171,4197,873+15%

14Sangamon County, ILIL194,1706,901−3%

15Tazewell County, ILIL130,0496,494+12%

16Kankakee County, ILIL105,5255,948+1%

17Kendall County, ILIL145,4705,490−1%

18DeKalb County, ILIL101,8355,124−4%

19LaSalle County, ILIL107,7734,279+1%

20Macon County, ILIL99,3004,090−8%

21Vermilion County, ILIL71,2593,401−17%

22Jackson County, ILIL52,5013,312−16%

23Coles County, ILIL46,6073,262−8%

24Douglas County, ILIL19,8803,002−3%

25Williamson County, ILIL67,2252,994−20%

26Boone County, ILIL53,5682,957+5%

27Adams County, ILIL64,2672,816−9%

28Whiteside County, ILIL54,1212,726−8%

29Franklin County, ILIL36,9162,708+25%

30Jefferson County, ILIL36,1472,536+15%

31Knox County, ILIL47,7672,345−4%

32Marion County, ILIL36,3822,307−4%

33Stephenson County, ILIL43,2202,234+0%

34Ogle County, ILIL51,3992,107−4%

35Moultrie County, ILIL14,3711,999−1%

36Woodford County, ILIL38,1111,965+24%

37McDonough County, ILIL25,9161,957+23%

38Henry County, ILIL48,0951,939−11%

39Wayne County, ILIL15,8821,927+13%

40Effingham County, ILIL34,5191,810−0%

41Grundy County, ILIL54,0521,792−2%

42Macoupin County, ILIL43,7481,783−2%

43Bureau County, ILIL32,5101,743+11%

44Livingston County, ILIL35,0571,743+11%

45Clinton County, ILIL37,1281,690+16%

46Iroquois County, ILIL26,1501,570−6%

47Fayette County, ILIL20,7901,492−2%

48Randolph County, ILIL29,9211,463+5%

49Morgan County, ILIL32,5151,384+14%

50Christian County, ILIL33,4431,250−16%

51Saline County, ILIL22,7721,235−6%

52Lee County, ILIL32,9141,183+4%

53Montgomery County, ILIL28,0761,167+15%

54Fulton County, ILIL32,9011,136−38%

55Massac County, ILIL13,5021,066+9%

56Union County, ILIL16,6561,060+2%

57Jersey County, ILIL21,1601,042+26%

58Jo Daviess County, ILIL21,5941,013−7%

59Hancock County, ILIL16,803979+56%

60Cass County, ILIL12,463977+66%

61Johnson County, ILIL13,363940+133%

62Richland County, ILIL15,219934+74%

63Crawford County, ILIL18,648917−18%

64Shelby County, ILIL20,576913+11%

65Lawrence County, ILIL13,790898−14%

66Edgar County, ILIL16,323879+7%

67Monroe County, ILIL34,840873+1%

68Warren County, ILIL16,222811−13%

69Pike County, ILIL14,231808−8%

70Carroll County, ILIL15,419805+10%

71Ford County, ILIL13,216747+18%

72Mercer County, ILIL15,229709+33%

73Clark County, ILIL15,114697+23%

74Schuyler County, ILIL6,657693+24%

75Clay County, ILIL12,793660−2%

76White County, ILIL13,250653−21%

77Logan County, ILIL27,182642−33%

78Perry County, ILIL20,160629−9%

79Hamilton County, ILIL7,859597−11%

80Piatt County, ILIL16,791551−13%

81Bond County, ILIL16,959544−41%

82Cumberland County, ILIL10,208538+3%

83De Witt County, ILIL15,118491−20%

84Mason County, ILIL12,411484−34%

85Greene County, ILIL11,313474−34%

86Jasper County, ILIL9,032459−28%

87Wabash County, ILIL10,907458−34%

88Washington County, ILIL13,564454+21%

89Alexander County, ILIL4,570452−3%

90Marshall County, ILIL11,473395−22%

91Edwards County, ILIL5,898362−7%

92Stark County, ILIL5,319300+14%

93Scott County, ILIL4,866269+75%

94Menard County, ILIL11,863263−10%

95Pulaski County, ILIL4,820226−10%

96Gallatin County, ILIL4,616220+32%

97Putnam County, ILIL5,619166+2%

98Henderson County, ILIL5,984162−43%

99Hardin County, ILIL3,588130−38%

100Pope County, ILIL3,672111+23%

101Calhoun County, ILIL4,300101+120%

102Brown County, ILIL6,40194−68%

SHOWING 1–102 OF 102

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES