What State is ME? US State Abbreviation Guide

There’s a moment in almost every geography or trivia conversation where someone confidently says “ME” for a state, and the room pauses for a split second — is that Maine, Michigan, or Massachusetts? The U.S. Postal Service settled this confusion in 1963 by standardizing two-letter abbreviations, but mix-ups persist in everyday writing, forms, and online searches.

Number of U.S. states: 50 ·
Official two-letter codes: 50 unique abbreviations ·
Most frequently confused abbreviations: ME, MI, MA, MN, MS ·
Governing body for standard: United States Postal Service (USPS) ·
Year of standardized adoption: 1963

The table below provides a quick reference for the most important facts.

What does ‘me’ mean in US states?

When someone searches “what state is me,” the answer is straightforward but carries a history of confusion. ME is the official USPS two-letter abbreviation for the state of Maine. The United States Postal Service, through its governing document USPS Publication 28 Appendix B, lists Maine as ME and confirms that no other state uses that abbreviation.

What is the two-letter abbreviation for Maine?

• Maine’s official USPS abbreviation is ME (USPS Postal Explorer)
• This abbreviation has been in continuous use since the standardization in October 1963 (USPS State Abbreviations History)
• Before 1963, Maine was written as “Me.” with a period, following 19th-century postal conventions
• The U.S. Bureau of Labor Statistics and the Internal Revenue Service both reproduce this abbreviation in their official reference materials (U.S. Bureau of Labor Statistics; IRS ZIP Code Reference)

Why is Maine abbreviated ME?

The abbreviation draws from the first two letters of the state’s name — a pattern shared by many USPS codes (e.g., AL for Alabama, AR for Arkansas). The USPS chose this system in 1963 to fit city, state, and ZIP Code onto a single address line within 28 character positions, as explained in USPS Publication 28. Prior to this, Maine had used “Me.” since at least 1831, as documented in the USPS historical abbreviation timeline.

“ME is the official USPS two-letter abbreviation for the state of Maine.” — USPS Postal Explorer

The implication: The pronoun “me” creates search noise, but the postal standard remains unambiguous.

Is Maine Ma or Me?

This question trips up even seasoned travelers and administrative professionals. The short answer: Maine is ME, not MA. The confusion stems from the fact that both state names begin with “M” and share similar vowel sounds.

What is the correct abbreviation for Maine?

• Maine’s correct and only USPS abbreviation is ME (USPS Postal Explorer)
• MA is the official abbreviation for Massachusetts (USPS Publication 28)
• The University of Michigan mailing services page, which reproduces official USPS codes, confirms this distinction (University of Michigan Print Copy Mail)

Is MA ever used for Maine?

No — never in any official USPS document. The USPS official table lists Massachusetts as MA and Maine as ME. The two appear in adjacent rows in the alphabetical listing: Maine (ME), Marshall Islands (MH), Maryland (MD), Massachusetts (MA), Michigan (MI). This proximity in the list may contribute to the confusion, but the codes are distinct.

Eight states begin with the letter M, each with a unique two-letter code: MA (Massachusetts), MD (Maryland), ME (Maine), MI (Michigan), MN (Minnesota), MO (Missouri), MS (Mississippi), and MT (Montana).

“Maine is ME, Massachusetts is MA — never interchangeable.” — USPS Publication 28

The pattern: The proximity of M states in the USPS list demands careful verification, especially when transcribing address data.

Is Michigan MI or ME?

This is the most common state abbreviation mix-up online. The answer is definitive: Michigan is MI, never ME.

What is the correct abbreviation for Michigan?

• Michigan’s official USPS abbreviation is MI (USPS Postal Explorer)
• The USPS historical page confirms Michigan has used MI since the two-letter code standardization in October 1963 (USPS State Abbreviations History)
• Older abbreviations for Michigan included “Mic. T.” in 1831 and “Mich.” in 1874 and 1943, but these were retired with the 1963 standardization

Why do people confuse Michigan with ME?

Three factors drive this confusion. First, both state names start with M and contain the letter E. Second, Michigan’s older abbreviation “Mich.” bore some visual similarity to “ME” when read quickly. Third, the word “me” is a common English pronoun, so users typing “what state is me” may be searching for any M-state code. The USPS official table makes the distinction unambiguous: Michigan is MI, Maine is ME, and neither code can substitute for the other.

The catch: A single character error in a state code can redirect a shipment to a completely different region of the country.

What state is AR?

AR belongs to a state that often gets overlooked in abbreviation discussions: Arkansas.

What is the abbreviation for Arkansas?

• Arkansas is abbreviated AR (USPS Postal Explorer)
• This code follows the pattern of taking the first two letters of the state name
• Arkansas is the only state with the AR abbreviation

What other states have abbreviations starting with A?

Eight states begin with the letter A, each with a distinct two-letter code: AK (Alaska), AL (Alabama), AR (Arkansas), AZ (Arizona), CA (California), CO (Colorado), CT (Connecticut). The key takeaway: no A-state shares an abbreviation with any other state.

The pattern: The A-state abbreviations are clear because none overlap with common words or other states.

What state is MD?

MD is the official abbreviation for Maryland, a state whose code occasionally gets mixed up with the M-state cluster.

What is the abbreviation for Maryland?

• Maryland’s USPS abbreviation is MD (USPS Postal Explorer)
• Maryland is distinct from Maine (ME), Massachusetts (MA), and Michigan (MI)

What states have abbreviations starting with M?

These eight states and their codes are the source of most abbreviation confusion. The pattern emerges when you see them in a single table:

Eight M-states, eight abbreviations — every code is unique. No two states share an abbreviation, and no state has more than one official code. The pattern: each abbreviation derives from the first two letters or a recognizable letter combination (as in MS for Mississippi and MT for Montana).

Frequently asked questions

For anyone managing data entry, shipping logistics, or administrative records, the USPS state abbreviation system is a model of clarity: 50 states, 50 codes, zero overlap. The confusion around ME, MI, MA, MN, and MS is the result of human habit, not system design. The official standard — documented in USPS Publication 28 and enforced by the federal government — leaves no room for ambiguity. For the shipping clerk checking a label or the data analyst cleaning a customer database, the rule is simple: ME is Maine, MI is Michigan, MA is Massachusetts, and each code points to exactly one state.