The Complete Ma State Abbreviation Guide: Official Usage, Capital, and Rules
By Sophia Al-Mansoor
Q1: Is MA the official postal abbreviation for Massachusetts?
A1: Yes. The United States Postal Service standardized MA as the official two-letter abbreviation for the Commonwealth of Massachusetts in 1963, and it remains the federal requirement on all mailing and shipping labels.
Q2: Why do Massachusetts ZIP codes start with a zero?
A2: The USPS structured ZIP codes geographically from east to west. New England represents the eastern edge of the national routing system, assigning numbers starting with 0 to Massachusetts, Connecticut, Rhode Island, Maine, New Hampshire, and Vermont.
Q3: When should I use 'Mass.' instead of 'MA'?
A3: Use "Mass." strictly in historical contexts, specialized legal citations, or older editorial formats following legacy AP Stylebook rules. For envelopes, shipping labels, database entries, and official forms, always use the two-letter code MA.
Q4: What is the FIPS code for Massachusetts, and how does it differ from MA?
A4: The Federal Information Processing Standard (FIPS) numeric code for Massachusetts is 25. While MA is used for postal routing and general identification, FIPS code 25 is used by government agencies like the U.S. Census Bureau for statistical analysis, cartography, and relational database management.
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