How to Play and learn the codes you actually mix up
State abbreviations look simple until the similar ones show up together. Most people do fine with CA, TX, and FL. The misses usually come from A states, M states, New states, and north/south pairs.
Use the quiz for recall, then use the table to check only the codes you missed. You do not need to reread all 50 every time.
State abbreviation test warmup
Before you start a full round, check the codes that usually cause the most hesitation. If these feel easy, the full test gets much smoother.
Missouri
MO is Missouri. Capital: Jefferson City.
Minnesota
MN is Minnesota. Capital: Saint Paul.
Mississippi
MS is Mississippi. Capital: Jackson.
Iowa
IA is Iowa. Capital: Des Moines.
Rhode Island
RI is Rhode Island. Capital: Providence.
Arizona
AZ is Arizona. Capital: Phoenix.
Choose the right mode
Classic
State to code
Good for learning the official USPS abbreviation.
Reverse
Code to state
Better for forms, labels, and reading short state codes quickly.
Mixed
Both directions
Best final check because you cannot rely on one pattern.
All 50 U.S. state abbreviations
| State | Abbreviation | Region | Review |
|---|---|---|---|
| Alabama | AL | South | Open state |
| Alaska | AK | West | Open state |
| Arizona | AZ | West | Open state |
| Arkansas | AR | South | Open state |
| California | CA | West | Open state |
| Colorado | CO | West | Open state |
| Connecticut | CT | Northeast | Open state |
| Delaware | DE | South | Open state |
| Florida | FL | South | Open state |
| Georgia | GA | South | Open state |
| Hawaii | HI | West | Open state |
| Idaho | ID | West | Open state |
| Illinois | IL | Midwest | Open state |
| Indiana | IN | Midwest | Open state |
| Iowa | IA | Midwest | Open state |
| Kansas | KS | Midwest | Open state |
| Kentucky | KY | South | Open state |
| Louisiana | LA | South | Open state |
| Maine | ME | Northeast | Open state |
| Maryland | MD | South | Open state |
| Massachusetts | MA | Northeast | Open state |
| Michigan | MI | Midwest | Open state |
| Minnesota | MN | Midwest | Open state |
| Mississippi | MS | South | Open state |
| Missouri | MO | Midwest | Open state |
| Montana | MT | West | Open state |
| Nebraska | NE | Midwest | Open state |
| Nevada | NV | West | Open state |
| New Hampshire | NH | Northeast | Open state |
| New Jersey | NJ | Northeast | Open state |
| New Mexico | NM | West | Open state |
| New York | NY | Northeast | Open state |
| North Carolina | NC | South | Open state |
| North Dakota | ND | Midwest | Open state |
| Ohio | OH | Midwest | Open state |
| Oklahoma | OK | South | Open state |
| Oregon | OR | West | Open state |
| Pennsylvania | PA | Northeast | Open state |
| Rhode Island | RI | Northeast | Open state |
| South Carolina | SC | South | Open state |
| South Dakota | SD | Midwest | Open state |
| Tennessee | TN | South | Open state |
| Texas | TX | South | Open state |
| Utah | UT | West | Open state |
| Vermont | VT | Northeast | Open state |
| Virginia | VA | South | Open state |
| Washington | WA | West | Open state |
| West Virginia | WV | South | Open state |
| Wisconsin | WI | Midwest | Open state |
| Wyoming | WY | West | Open state |
The tricky groups
A states
AL, AK, AZ, AR
Alabama, Alaska, Arizona, and Arkansas are easy to mix up because they all start the same way.
M states
MA, MD, ME, MI, MN, MO, MS, MT
The M states are the classic abbreviation trap. Drill them as a group.
New states
NH, NJ, NM, NY
New Hampshire, New Jersey, New Mexico, and New York all need the second word.
Same first letter pairs
NC/ND, SC/SD, VA/VT
When two states share a first letter, the second letter usually carries the memory.
FAQ
What are state abbreviations?
They are the official two-letter postal codes used for U.S. states, such as CA for California and NY for New York.
What is the hardest group of state abbreviations?
The M states are usually hardest because there are eight of them: MA, MD, ME, MI, MN, MO, MS, and MT.
What state is MO?
MO is Missouri. It is one of the M-state codes that is easy to confuse with MS, MN, and MT.
What state is MN?
MN is Minnesota. The capital is Saint Paul.
What state is MS?
MS is Mississippi. The capital is Jackson.
What state is IA?
IA is Iowa. The capital is Des Moines.
Is AZ Arizona?
Yes. AZ is the postal abbreviation for Arizona.
Should I practice codes forward or backward?
Do both. State to code is good for writing addresses, while code to state is better for recognizing abbreviations quickly.