This case-sensitive code system https://www.usps.com/
defines the following codes:
|
Code
|
Display
|
|
AK
|
Alaska |
|
AL
|
Alabama |
|
AR
|
Arkansas |
|
AS
|
American Samoa |
|
AZ
|
Arizona |
|
CA
|
California |
|
CO
|
Colorado |
|
CT
|
Connecticut |
|
DC
|
District of Columbia |
|
DE
|
Delaware |
|
FL
|
Florida |
|
FM
|
Federated States of Micronesia |
|
GA
|
Georgia |
|
GU
|
Guam |
|
HI
|
Hawaii |
|
IA
|
Iowa |
|
ID
|
Idaho |
|
IL
|
Illinois |
|
IN
|
Indiana |
|
KS
|
Kansas |
|
KY
|
Kentucky |
|
LA
|
Louisiana |
|
MA
|
Massachusetts |
|
MD
|
Maryland |
|
ME
|
Maine |
|
MH
|
Marshall Islands |
|
MI
|
Michigan |
|
MN
|
Minnesota |
|
MO
|
Missouri |
|
MP
|
Northern Mariana Islands |
|
MS
|
Mississippi |
|
MT
|
Montana |
|
NC
|
North Carolina |
|
ND
|
North Dakota |
|
NE
|
Nebraska |
|
NH
|
New Hampshire |
|
NJ
|
New Jersey |
|
NM
|
New Mexico |
|
NV
|
Nevada |
|
NY
|
New York |
|
OH
|
Ohio |
|
OK
|
Oklahoma |
|
OR
|
Oregon |
|
PA
|
Pennsylvania |
|
PR
|
Puerto Rico |
|
PW
|
Palau |
|
RI
|
Rhode Island |
|
SC
|
South Carolina |
|
SD
|
South Dakota |
|
TN
|
Tennessee |
|
TX
|
Texas |
|
UM
|
U.S. Minor Outlying Islands |
|
UT
|
Utah |
|
VA
|
Virginia |
|
VI
|
Virgin Islands of the U.S. |
|
VT
|
Vermont |
|
WA
|
Washington |
|
WI
|
Wisconsin |
|
WV
|
West Virginia |
|
WY
|
Wyoming |