Comprehensive List of Counties in Illinois

Metro Chicago Covers 9 Illinois Counties

City skyline, Chicago, Illinois, America, USA
••• chrisvankan / Getty Images

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