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Geography Summaries
State Abbreviations

U.S. State Postal
Abbreviations

by Vaughn Aubuchon

The following list summarizes the official United States Postal Code State Abbreviations, and shows the presumed derivations. There is no absolute rule in coming up with the two-letter state codes, which means that one must memorize them all. Missouri is the weirdest state abbreviation, in a class by itself. This chart should help you to remember each state's abbreviation.

In those cases where there is a possible alternative derivation, the cell has been highlighted in yellow.

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300

140

The Second Letter
of the State abbreviation
comes from ---->
 

 2nd Letter of State
Last Letter of 1st Syllable
First Letter of 2nd Syllable
First Letter of 3rd Syllable
 Weird
 Last Letter of State
First Letter of 2nd Word

 State

 Abbr.
 (19)
(4)
(2)
(2)
(1)
(12)
(10)
1

AL-a-ba-ma

AL
AL

 

 

 

 

 

 

2

A-las-Ka

AK

 

 

 

AK

 

 

 

3

Ar-i-Zo-na

AZ

 

 

 

AZ

 

 

 

4

AR-kan-sas

AR
AR

 

 

 

 

 

 

5

CAl-i-for-niA

CA
CA

 

 

 

 

 CA-?

 

6

COl-O-rad-O

CO
CO

 

 CO-?

 

 

 CO-?

 

7

Con-nec-Ti-cuT

CT

 

 

 

 CT-?

 

CT

 

8

DEl-a-warE

DE
DE

 

 

 

 

 DE-?

 

9

FLor-i-da

FL
FL

 

 

 

 

 

 

10

Geor-giA

GA

 

 

 

 

 

GA

 

11

Ha-wai-I

HI

 

 

 

 

 

HI

 

12

I-Da-ho

ID
ID

 

 

 

 

 

 

13

IL-Li-nois

IL
IL

 

 IL-?

 

 

 

 

14

IN-di-aN-a

IN
IN

 

 

  IN-?

 

 

15

I-o-wA

IA

 

 

 

 

 

IA

 

16

Kan-SaS

KS

 

 

 KS-?

 

 

KS

 

17

Ken-tuck-Y

KY

 

 

 

 

 

KY

 

18

Lou-i-si-AnA

LA

 

 

 

 

 

LA

 

19

MainE

ME

 

 

 

 

 

ME

 

20

Ma-ry-lanD

MD

 

 

 

 

 

MD

 

21

MAs-sa-chu-setts

MA
MA

 

 

 

 

 

 

22

MIch-i-gan

MI
MI

 

 MI-?

 

 

 

 

23

MiN-Ne-so-ta

MN

 

MN
 MN-?

 

 

 

 

24

MiS-Sis-Sip-pi

MS

 

MS
 MS-?
 MS-?

 

 

 

25

Mis-sOu-ri

MO

 

 

 

 

MO

 

 

26

Mon-Tan-a

MT

 

 

MT

 

 

 

 

27

NE-bras-ka

NE
NE

 

 

 

 

 

 

28

Ne-Vad-a

NV

 

 

NV

 

 

 

 

29

New Hamp-shire

NH

 

 

 

 

 

 

NH

30

New Jer-sey

NJ

 

 

 

 

 

 

NJ
31

New Mex-i-co

NM

 

 

 

 

 

 

NM
32

New York

NY

 

 

 

 

 

 

NY
33

North Car-o-li-na

NC

 

 

 

 

 

 

NC
34

North Da-ko-ta

ND

 

 

 

 

 

 

ND
35

O-Hi-o

OH
OH

 

 

 

 

 

 

36

O-Kla-ho-ma

OK

 

 OK

 

 

 

 

37

OR-e-gon

OR
OR

 

 

 

 

 

 

38

Penn-syl-va-niA

PA

 

 

 

 

 

PA

 

39

Rhode Is-land

RI

 

 

 

 

 

 

RI

40

South Car-o-li-na

SC

 

 

 

 

 

 

SC
41

South Da-ko-ta

SD

 

 

 

 

 

 

SD
42

TeN-Nes-see

TN

 

TN
 TN-?

 

 

 

 

43

TeX-as

TX

 

TX

 

 

 

 

 

44

U-Tah

UT
UT

 

 

 

 

 

 

45

Ver-monT

VT

 

 

 

 

 

VT

 

46

Vir-gin-iA

VA

 

 

 

 

 

VA

 

47

WAsh-ing-ton

WA
WA

 

 

 

 

 

 

48

West Vir-gin-ia

WV

 

 

 

 

 

WV
49

WIs-con-sin

WI
WI

 

 

 

 

 

 

50

WY-o-ming

WY
WY

 

 

 

 

 

25

200-625

50

50

50

50

50

50

50

50

Disclaimer: I hope there are no errors.
Many thanks to Suzanne Walters and her students for pointing out my errors, and offering some additional considerations and possibilities.
I have not mentioned a few other possibilities (mid-syllable letters), because they are highly improbable, IMHO.

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This Vaughns U.S. State Postal Abbreviations
summary was last updated on 2017-10-25.