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1. Alabama ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Alabama ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a... Environmental Systems Research Institute, Inc. (ESRI).

2. Alaska ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Alaska ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a ... Environmental Systems Research Institute, Inc. (ESRI).

3. Arizona ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Arizona ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a... Environmental Systems Research Institute, Inc. (ESRI).

4. Arkansas ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Arkansas ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of ... Environmental Systems Research Institute, Inc. (ESRI).

5. California ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). California ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit o... Environmental Systems Research Institute, Inc. (ESRI).

6. Colorado ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Colorado ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of ... Environmental Systems Research Institute, Inc. (ESRI).

7. Connecticut ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Connecticut ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit ... Environmental Systems Research Institute, Inc. (ESRI).

8. Delaware ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Delaware ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of ... Environmental Systems Research Institute, Inc. (ESRI).

9. District of Columbia ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). District of Columbia ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The fir... Environmental Systems Research Institute, Inc. (ESRI).

10. Florida ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Florida ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a... Environmental Systems Research Institute, Inc. (ESRI).

11. Georgia ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Georgia ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a... Environmental Systems Research Institute, Inc. (ESRI).

12. Hawaii ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Hawaii ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a ... Environmental Systems Research Institute, Inc. (ESRI).

13. Idaho ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Idaho ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a f... Environmental Systems Research Institute, Inc. (ESRI).

14. Illinois ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Illinois ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of ... Environmental Systems Research Institute, Inc. (ESRI).

15. Indiana ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Indiana ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a... Environmental Systems Research Institute, Inc. (ESRI).

16. Iowa ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Iowa ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a fi... Environmental Systems Research Institute, Inc. (ESRI).

17. Kansas ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Kansas ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a ... Environmental Systems Research Institute, Inc. (ESRI).

18. Kentucky ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Kentucky ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of ... Environmental Systems Research Institute, Inc. (ESRI).

19. Louisiana ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Louisiana ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of... Environmental Systems Research Institute, Inc. (ESRI).

20. Maine ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Maine ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a f... Environmental Systems Research Institute, Inc. (ESRI).

21. Maryland ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Maryland ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of ... Environmental Systems Research Institute, Inc. (ESRI).

22. Massachusetts ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Massachusetts ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digi... Environmental Systems Research Institute, Inc. (ESRI).

23. Michigan ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Michigan ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of ... Environmental Systems Research Institute, Inc. (ESRI).

24. Minnesota ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Minnesota ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of... Environmental Systems Research Institute, Inc. (ESRI).

25. Mississippi ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Mississippi ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit ... Environmental Systems Research Institute, Inc. (ESRI).

26. Missouri ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Missouri ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of ... Environmental Systems Research Institute, Inc. (ESRI).

27. Montana ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Montana ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a... Environmental Systems Research Institute, Inc. (ESRI).

28. Nebraska ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Nebraska ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of ... Environmental Systems Research Institute, Inc. (ESRI).

29. Nevada ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Nevada ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a ... Environmental Systems Research Institute, Inc. (ESRI).

30. New Hampshire ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). New Hampshire ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digi... Environmental Systems Research Institute, Inc. (ESRI).

31. New Jersey ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). New Jersey ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit o... Environmental Systems Research Institute, Inc. (ESRI).

32. New Mexico ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). New Mexico ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit o... Environmental Systems Research Institute, Inc. (ESRI).

33. New York ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). New York ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of ... Environmental Systems Research Institute, Inc. (ESRI).

34. North Carolina ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). North Carolina ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first dig... Environmental Systems Research Institute, Inc. (ESRI).

35. North Dakota ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). North Dakota ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit... Environmental Systems Research Institute, Inc. (ESRI).

36. Ohio ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Ohio ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a fi... Environmental Systems Research Institute, Inc. (ESRI).

37. Oklahoma ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Oklahoma ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of ... Environmental Systems Research Institute, Inc. (ESRI).

38. Oregon ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Oregon ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a ... Environmental Systems Research Institute, Inc. (ESRI).

39. Pennsylvania ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Pennsylvania ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit... Environmental Systems Research Institute, Inc. (ESRI).

40. Rhode Island ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Rhode Island ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit... Environmental Systems Research Institute, Inc. (ESRI).

41. South Carolina ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). South Carolina ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first dig... Environmental Systems Research Institute, Inc. (ESRI).

42. South Dakota ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). South Dakota ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit... Environmental Systems Research Institute, Inc. (ESRI).

43. Tennessee ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Tennessee ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of... Environmental Systems Research Institute, Inc. (ESRI).

44. Texas ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Texas ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a f... Environmental Systems Research Institute, Inc. (ESRI).

45. U.S. Three-Digit ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). U.S. Three-Digit ZIP Code Areas represents the first three digits of a ZIP Code. The first digit of a five-digit ZIP Code divides the country into... Environmental Systems Research Institute, Inc. (ESRI).

46. U.S. ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). U.S. ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a fi... Environmental Systems Research Institute, Inc. (ESRI).

47. U.S. ZIP Code Points 2002

2001. Geographic Data Technology, Inc. (GDT). U.S. ZIP Code Points represents five-digit ZIP Code areas as points by placing the location using delivery based centroids and those ZIP Codes that... Environmental Systems Research Institute, Inc. (ESRI).

48. Utah ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Utah ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a fi... Environmental Systems Research Institute, Inc. (ESRI).

49. Vermont ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Vermont ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a... Environmental Systems Research Institute, Inc. (ESRI).

50. Virginia ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Virginia ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of ... Environmental Systems Research Institute, Inc. (ESRI).

51. Washington ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Washington ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit o... Environmental Systems Research Institute, Inc. (ESRI).

52. West Virginia ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). West Virginia ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digi... Environmental Systems Research Institute, Inc. (ESRI).

53. Wisconsin ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Wisconsin ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of... Environmental Systems Research Institute, Inc. (ESRI).

54. Wyoming ZIP Code Areas 2002

2001. Geographic Data Technology, Inc. (GDT). Wyoming ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a... Environmental Systems Research Institute, Inc. (ESRI).