Comprehensive Look at All Counties in Illinois

Metro Chicago Covers 9 Illinois Counties

City skyline, Chicago, Illinois, America, USA
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Illinois became a state in 1818 and is most famous as the Land of Lincoln -- a moniker so apt that those words are a fixture on Illinois car license plates. It's also called the Prairie State for is wide swaths of open prairie covering most of the state. The state capitol building in Springfield is just a short walk from the Lincoln Home National Historic Site and the Abraham Lincoln Presidential Library and Museum.

Then there's the metro Chicago area, with a population of 9.4 million as of the 2010 U.S. Census, making it the third largest metropolitan area in the country. Chicago is also home to Willis (formerly Sears) Tower, the second tallest in the United States and the Western Hemisphere, beaten in height only by One World Trade Center in New York. That's fitting because Chicago is renowned for its architecture and as the birthplace of the skyscraper.

The Chicago metropolitan area covers 14 counties, with nine in Illinois -- Cook, DeKalb, DuPage, Grundy, Kane, Kendall, Lake, McHenry and Will. The capital, Springfield, is in Sangamon County.

There are 102 counties in the state of Illinois. Here is a complete list of them all in alphabetical order.

  1. Adams
  2. Alexander
  3. Bond
  4. Boone
  5. Brown
  6. Bureau
  7. Calhoun
  8. Carroll
  9. Cass
  10. Champaign
  11. Christian
  12. Clark
  13. Clay
  14. Clinton
  15. Coles
  16. Cook
  17. Crawford
  18. Cumberland
  19. DeKalb
  20. De Witt
  21. Douglas
  22. DuPage
  23. Edgar
  24. Edwards
  25. Effingham
  1. Fayette
  2. Ford
  3. Franklin
  4. Fulton
  5. Gallatin
  6. Greene
  7. Grundy
  8. Hamilton
  9. Hancock
  10. Hardin
  11. Henderson
  12. Henry
  13. Iroquois
  14. Jackson
  15. Jasper
  16. Jefferson
  17. Jersey
  18. Jo Daviess
  19. Johnson
  20. Kane
  21. Kankakee
  22. Kendall
  23. Knox
  24. Lake
  25. La Salle
  26. Lawrence
  27. Lee
  28. Livingston
  29. Logan
  30. McDonough
  31. McHenry
  32. McLean
  33. Macon
  34. Macoupin
  35. Madison
  36. Marion
  37. Marshall
  38. Mason
  39. Massac
  40. Menard
  41. Mercer
  42. Monroe
  43. Montgomery
  44. Morgan
  45. Moultrie
  1. Ogle
  2. Peoria
  3. Perry
  4. Piatt
  5. Pike
  6. Pope
  7. Pulaski
  8. Putnam
  9. Randolph
  10. Richland
  11. Rock Island
  12. St. Clair
  13. Saline
  14. Sangamon
  15. Schuyler
  16. Scott
  17. Shelby
  18. Stark
  19. Stephenson
  20. Tazewell
  21. Union
  22. Vermilion
  23. Wabash
  24. Warren
  25. Washington
  26. Wayne
  27. White
  28. Whiteside
  29. Will
  30. Williamson
  31. Winnebago
  32. Woodford