RANKING · 2010 CENSUS · 102 SHOWN OF 102

Least racially diverse, Illinois counties · 2010

Illinois counties with the lowest CensusEasy Diversity Score, where most residents share the same race or ethnicity (2023 ACS). This list covers the 102 counties in Illinois that qualify, ranked against each other statewide.

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IllinoisAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPDIVERSITY SCOREVS 2000

01Scott County, ILIL4,8664+327%

02Calhoun County, ILIL4,3004+97%

03Moultrie County, ILIL14,3714+128%

04Menard County, ILIL11,8635+47%

05Shelby County, ILIL20,5765+133%

06Mason County, ILIL12,4115+148%

07Edgar County, ILIL16,3235−26%

08Cumberland County, ILIL10,2085+142%

09Jasper County, ILIL9,0325+179%

10Clark County, ILIL15,1146+290%

11Stark County, ILIL5,3196+128%

12Wayne County, ILIL15,8826+142%

13White County, ILIL13,2506+135%

14Jersey County, ILIL21,1607+76%

15Hancock County, ILIL16,8037+188%

16Hamilton County, ILIL7,8597+92%

17Clay County, ILIL12,7937+126%

18Piatt County, ILIL16,7917+193%

19Monroe County, ILIL34,8407+171%

20Gallatin County, ILIL4,6167+151%

21Edwards County, ILIL5,8987+210%

22Washington County, ILIL13,5648+152%

23Franklin County, ILIL36,9168+221%

24Macoupin County, ILIL43,7488+96%

25Mercer County, ILIL15,2298+85%

26Greene County, ILIL11,3138+138%

27Woodford County, ILIL38,1118+171%

28Ford County, ILIL13,2168+86%

29Wabash County, ILIL10,9079+121%

30Richland County, ILIL15,2199+120%

31Effingham County, ILIL34,5199+201%

32Pike County, ILIL14,2319+71%

33Marshall County, ILIL11,47310+149%

34Christian County, ILIL33,44310+18%

35Henderson County, ILIL5,98410+234%

36Jo Daviess County, ILIL21,59410+121%

37De Witt County, ILIL15,11811+113%

38Tazewell County, ILIL130,04912+106%

39Carroll County, ILIL15,41912+67%

40Schuyler County, ILIL6,65713+539%

41Hardin County, ILIL3,58813+27%

42Montgomery County, ILIL28,07614+18%

43Putnam County, ILIL5,61914+60%

44Adams County, ILIL64,26716+53%

45Fayette County, ILIL20,79016+15%

46Union County, ILIL16,65617+87%

47Fulton County, ILIL32,90117+41%

48Iroquois County, ILIL26,15018+51%

49Clinton County, ILIL37,12819+32%

50Saline County, ILIL22,77219+47%

51Douglas County, ILIL19,88019+92%

52Coles County, ILIL46,60719+73%

53Henry County, ILIL48,09520+90%

54Williamson County, ILIL67,22520+93%

55Marion County, ILIL36,38220+59%

56Pope County, ILIL3,67222+84%

57Bureau County, ILIL32,51022+64%

58Crawford County, ILIL18,64823+49%

59Bond County, ILIL16,95924+13%

60Morgan County, ILIL32,51524+40%

61Livingston County, ILIL35,05724+26%

62Massac County, ILIL13,50225+63%

63Grundy County, ILIL54,05225+129%

64McDonough County, ILIL25,91626+54%

65Ogle County, ILIL51,39926+62%

66Johnson County, ILIL13,36327−27%

67Logan County, ILIL27,18227+35%

68LaSalle County, ILIL107,77328+62%

69Warren County, ILIL16,22228+148%

70Perry County, ILIL20,16028+22%

71Lee County, ILIL32,91428+40%

72Jefferson County, ILIL36,14729+30%

73Madison County, ILIL263,11030+36%

74Randolph County, ILIL29,92130+21%

75Whiteside County, ILIL54,12131+32%

76Lawrence County, ILIL13,79032+617%

77Knox County, ILIL47,76732+33%

78Stephenson County, ILIL43,22033+42%

79McHenry County, ILIL317,75135+60%

80Sangamon County, ILIL194,17038+41%

81McLean County, ILIL171,41940+58%

82Vermilion County, ILIL71,25942+33%

83Cass County, ILIL12,46343+108%

84DeKalb County, ILIL101,83543+41%

85Macon County, ILIL99,30045+32%

86Boone County, ILIL53,56848+58%

87Jackson County, ILIL52,50149+21%

88Brown County, ILIL6,40150+11%

89Rock Island County, ILIL141,86950+33%

90Kendall County, ILIL145,47053+137%

91Kankakee County, ILIL105,52554+22%

92Peoria County, ILIL178,55354+30%

93Winnebago County, ILIL283,67455+33%

94Champaign County, ILIL209,97258+30%

95DuPage County, ILIL934,29859+36%

96Pulaski County, ILIL4,82061+6%

97Alexander County, ILIL4,57063+5%

98St. Clair County, ILIL250,70864+12%

99Will County, ILIL712,25364+40%

100Lake County, ILIL719,33966+27%

101Kane County, ILIL525,75769+18%

102Cook County, ILIL5,194,62586+5%

SHOWING 1–102 OF 102

Download CSV (full list, 102 rows)How this score is calculated

UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES