Illinois Counties Ranked by Area

Rank, county, total area (in square miles)

  1. McLean, 1174.05
  2. La Salle, 1137.41
  3. Iroquois, 1108.09
  4. Livingston, 1035.63
  5. Champaign, 987.74
  6. Cook, 949.20
  7. Vermilion, 891.67
  8. Fulton, 873.68
  9. Sangamon, 867.37
  10. Bureau, 865.96
  11. Adams, 861.86
  12. Macoupin, 857.93
  13. Will, 841.22
  14. Pike, 837.40
  15. Henry, 817.22
  16. Hancock, 805.69
  17. Shelby, 759.95
  18. Ogle, 757.12
  19. Madison, 732.09
  20. Lee, 722.21
  21. Fayette, 717.64
  22. Knox, 712.37
  23. Wayne, 707.76
  24. Christian, 707.56
  25. Montgomery, 701.92
  26. Whiteside, 691.50
  27. Kankakee, 674.62
  28. St Clair, 666.66
  29. Tazewell, 651.28
  30. Dekalb, 629.22
  31. Peoria, 623.69
  32. Edgar, 616.99
  33. Jo Daviess, 613.63
  34. Logan, 612.32
  35. McHenry, 606.12
  36. Jackson, 599.01
  37. Randolph, 588.68
  38. McDonough, 583.92
  39. Macon, 579.62
  40. Jefferson, 577.55
  41. Marion, 569.69
  42. Morgan, 566.72
  43. Mercer, 562.12
  44. Stephenson, 560.06
  45. Washington, 557.82
  46. Mason, 557.44
  47. Greene, 541.04
  48. Warren, 538.32
  49. Woodford, 537.33
  50. Kane, 519.67
  51. Winnebago, 515.20
  1. Coles, 504.87
  2. Clark, 499.36
  3. Clinton, 497.76
  4. White, 496.49
  5. Jasper, 492.90
  6. Ford, 481.40
  7. Effingham, 474.92
  8. Lake, 467.18
  9. Clay, 464.22
  10. Carroll, 462.70
  11. Rock Island, 447.32
  12. Perry, 442.30
  13. Crawford, 440.97
  14. Williamson, 439.51
  15. Schuyler, 436.62
  16. Piatt, 434.62
  17. Hamilton, 431.24
  18. Franklin, 427.09
  19. Grundy, 426.49
  20. Union, 417.84
  21. Douglas, 412.83
  22. Dewitt, 400.71
  23. Marshall, 395.01
  24. Monroe, 393.49
  25. Henderson, 391.97
  26. Saline, 382.94
  27. Cass, 379.55
  28. Bond, 378.66
  29. Jersey, 373.43
  30. Pope, 370.46
  31. Lawrence, 369.94
  32. Richland, 358.02
  33. Johnson, 345.03
  34. Cumberland, 342.94
  35. Moultrie, 340.35
  36. Dupage, 333.51
  37. Gallatin, 324.70
  38. Kendall, 319.42
  39. Menard, 311.94
  40. Brown, 303.95
  41. Stark, 285.67
  42. Calhoun, 280.66
  43. Boone, 279.87
  44. Alexander, 250.75
  45. Scott, 250.06
  46. Massac, 239.30
  47. Wabash, 225.04
  48. Edwards, 220.28
  49. Pulaski, 201.20
  50. Hardin, 179.48
  51. Putnam, 170.51


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Updated 05/25/2011 SLD

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