RANKING · 2010 CENSUS · 102 SHOWN OF 102

Fastest shrinking, Illinois counties · 2010

Illinois counties with the steepest population decline from the 2000 census to 2010. This list covers the 102 counties in Illinois that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

RELATEDLargest by population Fastest growing Most population gained Most population lost Most densely populated Most sparsely populated

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Pulaski County, ILIL4,820-16.2%−13.8 pts

02Alexander County, ILIL4,570-14.1%−4.3 pts

03Gallatin County, ILIL4,616-13.3%−6.6 pts

04Henderson County, ILIL5,984-10.7%−12.2 pts

05Hardin County, ILIL3,588-10.0%−2.5 pts

06Mason County, ILIL12,411-8.6%−7.1 pts

07Carroll County, ILIL15,419-7.7%−6.9 pts

08Wabash County, ILIL10,907-7.7%−6.3 pts

09Saline County, ILIL22,772-6.8%−7.5 pts

10Greene County, ILIL11,313-5.9%−2.3 pts

11Edgar County, ILIL16,323-5.7%−6.3 pts

12Pike County, ILIL14,231-5.5%−4.4 pts

13Warren County, ILIL16,222-5.5%−3.2 pts

14Marion County, ILIL36,382-5.4%−5.7 pts

15Stark County, ILIL5,319-5.3%−2.2 pts

16Knox County, ILIL47,767-5.2%−4.2 pts

17Iroquois County, ILIL26,150-5.2%−6.9 pts

18Clay County, ILIL12,793-5.1%−5.8 pts

19Hancock County, ILIL16,803-5.1%+0.8 pts

20White County, ILIL13,250-4.6%+2.4 pts

21Jasper County, ILIL9,032-4.1%+0.5 pts

22Marshall County, ILIL11,473-4.1%−6.7 pts

23Clark County, ILIL15,114-4.0%−10.8 pts

24Edwards County, ILIL5,898-3.6%+2.7 pts

25Whiteside County, ILIL54,121-3.6%−4.3 pts

26Macon County, ILIL99,300-3.4%−1.3 pts

27Cook County, ILIL5,194,625-3.4%−8.7 pts

28Scott County, ILIL4,866-3.3%−1.4 pts

29Perry County, ILIL20,160-3.2%−11.1 pts

30Crawford County, ILIL18,648-3.1%−8.2 pts

31Fulton County, ILIL32,901-3.1%−3.5 pts

32Mercer County, ILIL15,229-3.1%−1.2 pts

33Jefferson County, ILIL36,147-3.0%−11.2 pts

34Morgan County, ILIL32,515-2.9%−3.5 pts

35Washington County, ILIL13,564-2.9%−4.1 pts

36Logan County, ILIL27,182-2.8%−4.1 pts

37Vermilion County, ILIL71,259-2.7%+2.2 pts

38Union County, ILIL16,656-2.7%−6.5 pts

39Stephenson County, ILIL43,220-2.6%−4.5 pts

40Macoupin County, ILIL43,748-2.6%−5.4 pts

41Shelby County, ILIL20,576-2.3%−5.2 pts

42Johnson County, ILIL13,363-2.3%−15.8 pts

43Wayne County, ILIL15,882-2.3%−1.8 pts

44Hamilton County, ILIL7,859-1.9%−3.3 pts

45Livingston County, ILIL35,057-1.8%−2.8 pts

46Cumberland County, ILIL10,208-1.8%−7.3 pts

47Montgomery County, ILIL28,076-1.8%−1.5 pts

48Adams County, ILIL64,267-1.7%−5.0 pts

49Christian County, ILIL33,443-1.6%−4.4 pts

50Bureau County, ILIL32,510-1.5%−1.0 pts

51De Witt County, ILIL15,118-1.4%−3.1 pts

52Putnam County, ILIL5,619-1.3%−7.5 pts

53Randolph County, ILIL29,921-1.2%+0.8 pts

54Rock Island County, ILIL141,869-1.2%−1.7 pts

55Ford County, ILIL13,216-1.1%−0.9 pts

56Henry County, ILIL48,095-1.0%−0.8 pts

57McDonough County, ILIL25,916-0.9%+5.7 pts

58Cass County, ILIL12,463-0.4%−2.3 pts

59Brown County, ILIL6,401-0.2%−19.3 pts

60Lee County, ILIL32,914-0.1%−4.9 pts

61Effingham County, ILIL34,519-0.1%−8.1 pts

62Calhoun County, ILIL4,300+0.1%+4.6 pts

63Douglas County, ILIL19,880+0.3%−2.1 pts

64Richland County, ILIL15,219+0.5%+2.9 pts

65Bond County, ILIL16,959+0.8%−16.9 pts

66Jackson County, ILIL52,501+1.0%+3.4 pts

67Coles County, ILIL46,607+1.3%−1.7 pts

68Pope County, ILIL3,672+1.3%+0.4 pts

69Franklin County, ILIL36,916+1.4%+4.6 pts

70DuPage County, ILIL934,298+1.4%−14.3 pts

71Fayette County, ILIL20,790+1.6%−2.8 pts

72Peoria County, ILIL178,553+1.7%+1.3 pts

73Jo Daviess County, ILIL21,594+1.7%−0.4 pts

74Menard County, ILIL11,863+1.8%−10.1 pts

75Massac County, ILIL13,502+1.8%−1.0 pts

76LaSalle County, ILIL107,773+2.2%−2.1 pts

77Piatt County, ILIL16,791+2.2%−3.0 pts

78Moultrie County, ILIL14,371+3.9%+1.3 pts

79Madison County, ILIL263,110+4.0%+0.1 pts

80Sangamon County, ILIL194,170+4.5%−1.4 pts

81Ogle County, ILIL51,399+4.8%−6.2 pts

82Schuyler County, ILIL6,657+4.9%+9.1 pts

83Tazewell County, ILIL130,049+5.4%+1.5 pts

84St. Clair County, ILIL250,708+5.5%+8.0 pts

85Winnebago County, ILIL283,674+6.1%−4.0 pts

86Jersey County, ILIL21,160+6.1%+0.6 pts

87Clinton County, ILIL37,128+6.3%+1.6 pts

88Williamson County, ILIL67,225+8.3%+2.1 pts

89Lawrence County, ILIL13,790+8.9%+12.2 pts

90Woodford County, ILIL38,111+9.0%+0.4 pts

91Lake County, ILIL719,339+9.2%−15.6 pts

92Kankakee County, ILIL105,525+9.3%+1.4 pts

93Champaign County, ILIL209,972+11.9%+8.1 pts

94McLean County, ILIL171,419+12.7%−3.7 pts

95DeKalb County, ILIL101,835+18.2%+4.0 pts

96McHenry County, ILIL317,751+18.7%−23.2 pts

97Monroe County, ILIL34,840+19.3%−3.9 pts

98Kane County, ILIL525,757+27.5%+0.2 pts

99Boone County, ILIL53,568+29.6%−6.0 pts

100Grundy County, ILIL54,052+33.4%+17.3 pts

101Will County, ILIL712,253+34.9%−5.7 pts

102Kendall County, ILIL145,470+110.4%+72.0 pts

SHOWING 1–102 OF 102

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS