RANKING · 2020 CENSUS · 98 SHOWN OF 98

Largest British population, Illinois counties · 2020

Illinois counties ranked by the number of residents who are British ancestry, from the 2020 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 98 counties in Illinois that qualify, ranked against each other statewide.

British Americans: full group profile →

IllinoisAll states All rankings

SAME RANKING BYCities States Metros

RELATEDLargest American population Highest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share

YEAR2010 2020 2024

RANKPLACESTATEPOPBRITISH POPULATIONVS 2010

01Cook County, ILIL5,194,62515,406+44%

02DuPage County, ILIL934,2984,220−25%

03Lake County, ILIL719,3393,676+43%

04Will County, ILIL712,2532,098+19%

05Kane County, ILIL525,7571,884+36%

06Sangamon County, ILIL194,1701,780+135%

07Champaign County, ILIL209,9721,682+45%

08McHenry County, ILIL317,7511,615+72%

09Peoria County, ILIL178,5531,448+140%

10Madison County, ILIL263,1101,375+84%

11Winnebago County, ILIL283,6741,299+56%

12St. Clair County, ILIL250,7081,127+30%

13McLean County, ILIL171,419877+31%

14Macon County, ILIL99,300821+176%

15Rock Island County, ILIL141,869794+86%

16Tazewell County, ILIL130,049562+43%

17Kendall County, ILIL145,470491+51%

18DeKalb County, ILIL101,835490+27%

19Whiteside County, ILIL54,121475+242%

20Jackson County, ILIL52,501359+168%

21Kankakee County, ILIL105,525357+49%

22Williamson County, ILIL67,225352+3%

23Woodford County, ILIL38,111345+256%

24Henry County, ILIL48,095331+341%

25Vermilion County, ILIL71,259314+64%

26Christian County, ILIL33,443311+246%

27Stephenson County, ILIL43,220297+301%

28Logan County, ILIL27,182289+163%

29Adams County, ILIL64,267288+25%

30LaSalle County, ILIL107,773263+8%

31Boone County, ILIL53,568249+78%

32Coles County, ILIL46,607248+13%

33Livingston County, ILIL35,057241+198%

34Jefferson County, ILIL36,147240+823%

35Franklin County, ILIL36,916229+99%

36Marion County, ILIL36,382196+69%

37Ogle County, ILIL51,399196+161%

38Macoupin County, ILIL43,748182+214%

39Piatt County, ILIL16,791181+178%

40Jo Daviess County, ILIL21,594179+193%

41Fayette County, ILIL20,790175+94%

42Randolph County, ILIL29,921167+44%

43Knox County, ILIL47,767152−23%

44De Witt County, ILIL15,118151+5%

45Montgomery County, ILIL28,076139+72%

46Monroe County, ILIL34,840129+438%

47Crawford County, ILIL18,648128+220%

48Jersey County, ILIL21,160125+942%

49McDonough County, ILIL25,916121+3%

50Grundy County, ILIL54,052112+4%

51Clinton County, ILIL37,128110−26%

52Fulton County, ILIL32,901110+49%

53Moultrie County, ILIL14,371104+333%

54Morgan County, ILIL32,515100−14%

55Wabash County, ILIL10,90799+1314%

56Effingham County, ILIL34,51996+10%

57Schuyler County, ILIL6,65796−17%

58Clark County, ILIL15,11492+171%

59Iroquois County, ILIL26,15092+12%

60Richland County, ILIL15,21989+117%

61Hancock County, ILIL16,80388+267%

62Edgar County, ILIL16,32387−24%

63Lee County, ILIL32,91487+38%

64Mason County, ILIL12,41182+17%

65Perry County, ILIL20,16082−35%

66Saline County, ILIL22,77278+77%

67Pike County, ILIL14,23178–

68Washington County, ILIL13,56472+929%

69White County, ILIL13,25070+233%

70Bureau County, ILIL32,51061+2%

71Wayne County, ILIL15,88261+65%

72Bond County, ILIL16,95959+69%

73Clay County, ILIL12,79357−54%

74Marshall County, ILIL11,47356+115%

75Union County, ILIL16,65654−61%

76Shelby County, ILIL20,57652−45%

77Massac County, ILIL13,50249+513%

78Scott County, ILIL4,86642+282%

79Douglas County, ILIL19,88039+56%

80Johnson County, ILIL13,36339−36%

81Stark County, ILIL5,31938+73%

82Warren County, ILIL16,22236−32%

83Menard County, ILIL11,86335−44%

84Lawrence County, ILIL13,79032+10%

85Cumberland County, ILIL10,20831–

86Mercer County, ILIL15,22929+21%

87Calhoun County, ILIL4,30028+180%

88Ford County, ILIL13,21627−25%

89Cass County, ILIL12,46325−55%

90Gallatin County, ILIL4,61623+35%

91Greene County, ILIL11,31323−23%

92Edwards County, ILIL5,89820+67%

93Brown County, ILIL6,40117–

94Hamilton County, ILIL7,85917–

95Carroll County, ILIL15,41912−60%

96Putnam County, ILIL5,6198+60%

97Henderson County, ILIL5,9847+40%

98Pulaski County, ILIL4,8201−67%

SHOWING 1–98 OF 98

Download CSV (full list, 98 rows)

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS