States

Of the 50 states:

• 19 states are abbreviated by their first two letters:

AL, AR, CA*, CO*, DE*, FL, ID, IL, IN, MA, MI, NE, OH, OK, OR, UT, WA, WI, WY

• 15 state abbreviations are the first and last letter in a state's name:

CA*, CO*, CT, DE*, GA, HI, IA, KS, KY, LA, MD, ME, PA, VA, VT

• 10 two-word states are abbreviated by the first letter of each word:

NC, ND, NH, NJ, NM, NY, RI, SC, SD, WV

• The second letter for 9 states is usually one not found in other states that share a first letter with that state:

AK, AZ, MN, MO, MS, MT, NV, TN, TX

* three states (CA*, CO*, DE*) are same for first two letters and first and last letters.

Postal codes alphabetized by postal abbreviation (not by state)