These questions ask you to match a state with its USPS abbreviation or separate codes that look almost alike. Some present one address, while others ask you to preserve both members of a confusable pair.
Learn codes in contrast families
The first letter often narrows the search, but the second letter completes the identity. Learn related codes side by side so that each second letter carries a specific state association. When a prompt reverses the lookup, decode the whole two-letter unit rather than guessing from its first letter.
| Confusion family | Fixed assignments |
|---|---|
| Four M states | Michigan MI; Minnesota MN; Mississippi MS; Missouri MO |
| Four A states | Alabama AL; Alaskan mail AK; Arkansas AR; Arizonan mail AZ |
| Maine and Maryland | Maine ME; Maryland MD |
| Two C states | Californian mail CA; Coloradan mail CO |
| Virginia names | Virginia VA; West Virginia WV |
| Two N states | Nebraska NE; Nevadan mail NV |
Use a three-part check on an address. Read the full state name, retrieve its contrast family, and verify the second letter against the intended state. For West Virginia, treat the leading W as meaningful because it distinguishes a separate state; do not read WV as another way to shorten Virginia.
Where similar codes go wrong
| Tempting route | How to reject it |
|---|---|
| Treating MI, MN, MS, and MO as interchangeable because they all begin with M | Read the second letter as part of the identity. Each complete code belongs to a different state. |
| Choosing among AL, AK, AR, and AZ from the first letter alone | Use the distinctive ending sound or spelling in the full state name to anchor the assigned second letter. |
| Building a code from a state's final letters | USPS assignments are learned pairs, not a take-the-last-two-letters formula. Recall the full state-code link. |
| Inventing a plausible-looking pair such as AB or AS | Two letters that occur in a state name do not automatically form its postal code. Verify the pair against the learned family. |
Try it
Which statements correctly separate Maine's code from Maryland's? Select all that apply.
- Maine uses ME
- Maine uses MA
- Maryland uses MD
- Maryland uses ME
A form needs both Virginia postal codes. Which mapping is accurate?
- Virginia — VA; West Virginia — WV
- Virginia — WV; West Virginia — VA
- Virginia — VI; West Virginia — WV
- Virginia — VA; West Virginia — WG
Which paired postal mapping avoids the Nebraska-Nevada mix-up?
- Nebraska — NV; Nevada — NE
- Nebraska — NB; Nevada — NV
- Nebraska — NE; Nevada — NV
- Nebraska — NE; Nevada — NA