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Biggest Lakes and Reservoirs in Illinois

Illinois's biggest named fishing waters by surface acreage, from USGS records. 382 lakes and reservoirs carry acreage data in Illinois; more water usually means more patterns to unlock.

In this scope: 382 waters · 65,600 acres

  1. Carlyle LakeReservoir · Clinton County22,797 acres
  2. Lake ShelbyvilleReservoir · Moultrie County10,235 acres
  3. Lake ClintonReservoir · De Witt County4,586 acres
  4. Lake DecaturReservoir · Macon County2,905 acres
  5. Nippersink LakeLake · Lake County2,493 acres
  6. Pistakee LakeLake · McHenry County1,744 acres
  7. Grass LakeLake · Lake County1,582 acres
  8. Coffeen LakeReservoir · Montgomery County881 acres
  9. Governor Bond LakeReservoir · Bond County779 acres
  10. Wonder LakeReservoir · McHenry County698 acres
  11. Vandalia LakeReservoir · Fayette County627 acres
  12. Lake MarieLake · Lake County595 acres
  13. Lake CalumetLake · Cook County592 acres
  14. South PoolReservoir · Cook County426 acres
  15. Long LakeLake · Lake County387 acres
  16. Channel LakeLake · Lake County366 acres
  17. Saganashkee SloughReservoir · Cook County359 acres
  18. Bangs LakeLake · Lake County305 acres
  19. Skokie LagoonsReservoir · Cook County302 acres
  20. Cedar LakeLake · Lake County298 acres
  21. Fourth LakeLake · Lake County297 acres
  22. Vulcan LakesReservoir · McHenry County276 acres
  23. McGinnis SloughLake · Cook County273 acres
  24. McCullom LakeLake · McHenry County242 acres
  25. Round LakeReservoir · Lake County238 acres

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