Here is a list of the postal state abbreviations for all 50 states and the District of Columbia:
1. Alabama: AL
2. Alaska: AK
3. Arizona: AZ
4. Arkansas: AR
5. California: CA
6. Colorado: CO
7. Connecticut: CT
8. Delaware: DE
9. District of Columbia: DC
10. Florida: FL
11. Georgia: GA
12. Hawaii: HI
13. Idaho: ID
14. Illinois: IL
15. Indiana: IN
16. Iowa: IA
17. Kansas: KS
18. Kentucky: KY
19. Louisiana: LA
20. Maine: ME
21. Maryland: MD
22. Massachusetts: MA
23. Michigan: MI
24. Minnesota: MN
25. Mississippi: MS
26. Missouri: MO
27. Montana: MT
28. Nebraska: NE
29. Nevada: NV
30. New Hampshire: NH
31. New Jersey: NJ
32. New Mexico: NM
33. New York: NY
34. North Carolina: NC
35. North Dakota: ND
36. Ohio: OH
37. Oklahoma: OK
38. Oregon: OR
39. Pennsylvania: PA
40. Rhode Island: RI
41. South Carolina: SC
42. South Dakota: SD
43. Tennessee: TN
44. Texas: TX
45. Utah: UT
46. Vermont: VT
47. Virginia: VA
48. Washington: WA
49. West Virginia: WV
50. Wisconsin: WI
51. Wyoming: WY
These postal state abbreviations are used in a variety of contexts, including when filling out forms, writing letters or packages, and entering addresses in online systems. To ensure accurate mail delivery, it is essential to use the correct postal state abbreviation when addressing mail to a recipient in the United States.