State HUC Lists

The following lists give the HUCs found in each state. The percent of the HUC's area in the state is also given. The results are based on Graphical Locater's state and HUC identification routines. Over 20 million points were used in the analysis. This approach could not be used for the Great Lakes or for some ocean bays because off-shore state identifications are unavailable in Graphical Locater. Note that 0.0% means some small, but non-zero amount of the state was detected in the HUC. Some of the small values may in fact, be zero due to imperfections in the data for the borders. This is especially true where the HUC borders and the state borders are the same. These HUC's on the Idaho/Montana border were corrected by hand. This is the only area in the country where HUC borders and state borders are the same over a great distance. This seems unfortunate.

States are in alphabetical order. HUCs are sorted by the percent of their area in the given state (alphabetical if tied). A single HUC may occur in several states.

  1. Alabama
  2. Arizona
  3. Arkansas
  4. California
  5. Colorado
  6. Connecticut
  7. Delaware
  8. District of Columbia
  9. Florida
  10. Georgia
  11. Idaho
  12. Illinois
  13. Indiana
  14. Iowa
  15. Kansas
  16. Kentucky
  17. Louisiana
  18. Maine
  19. Maryland
  20. Massachusetts
  21. Michigan
  22. Minnesota
  23. Mississippi
  24. Missouri
  25. Montana
  26. Nebraska
  27. Nevada
  28. New Hampshire
  29. New Jersey
  30. New Mexico
  31. New York
  32. North Carolina
  33. North Dakota
  34. Ohio
  35. Oklahoma
  36. Oregon
  37. Pennsylvania
  38. Rhode Island
  39. South Carolina
  40. South Dakota
  41. Tennessee
  42. Texas
  43. Utah
  44. Vermont
  45. Virginia
  46. Washington
  47. West Virginia
  48. Wisconsin
  49. Wyoming

2003 JAN 21, last updated on 2003 JAN 29 D.L. Gustafson