What ZIP codes does Massachusetts use for mail and package delivery?

Massachusetts (MA) operates within the 5-digit ZIP prefix range 010xx–027xx. Mail routed to state capital Boston and key regional centers such as Boston, Worcester, Springfield adheres to these official USPS boundaries.

Which telephone area codes are valid for Massachusetts?

Massachusetts is served by 9 active North American Numbering Plan (NANPA) area codes: 339, 351, 413, 508, 617, 774, 781, 857, 978. Synthetic telephone numbers for Massachusetts use those area codes with a 555 exchange, which is reserved for fictitious use.

How many counties are in Massachusetts?

Massachusetts is divided into 14 counties, including major administrative regions such as Middlesex, Worcester, Essex, Suffolk. Generated street addresses use those names.

What postal formatting conventions and addressing quirks are unique to Massachusetts?

Leading zero in all ZIP codes (010xx–027xx, with Boston at 021xx), exposing CSV and database import pipelines to zero-drop corruption (e.g., 02138 becoming 2138). Historic colonial town meeting governance where municipal town borders define public services rather than abolished county governments. All addresses generated on this platform format secondary unit designators (Apt, Ste, Fl) and street suffixes according to USPS CASS standards.

Are the Massachusetts addresses generated on this page real places?

No. All street numbers, recipient names, and telephone numbers generated for Massachusetts are entirely synthetic and randomized for software testing, database seed scripts, and form validation. They use Massachusetts ZIP codes from public USPS data and real city names, but they do not correspond to real individuals or private residences.

Random Massachusetts Address Generator

These addresses are randomly generated for software testing. They are not real people’s details: the street number, unit and recipient name are invented, and no record is checked for deliverability.

Randomly generated Massachusetts mailing addresses for software testing, form validation and staging data. Each record pairs a real Massachusetts city with a ZIP prefix that serves it and the county that city sits in, then adds a street number, a secondary unit designator and a recipient name that are invented.

Official Massachusetts Postal & Geographic Reference Specifications

Geographic & Postal Parameter	Official State Specification	Standardization Reference
Postal State Abbreviation	MA	USPS Publication 28 & ISO 3166-2:US
5-Digit ZIP Prefix Range	010xx–027xx	USPS prefix-to-state assignment
Administrative Jurisdictions	14 Total Counties	US Census Bureau regional boundaries
Active Area Codes (NANPA)	`339, 351, 413, 508, 617, 774, 781, 857, 978` (9 total)	North American Numbering Plan Administrator
State Capital	Boston	US Census Bureau
Primary Time Zone	Eastern Time (America/New_York, UTC-5 / UTC-4 DST)	IANA time zone database

Massachusetts Postal Geography & Key Cities

ZIP codes and Sectional Center Facilities are derived from public USPS ZIP code data, area codes from the North American Numbering Plan, and county names from US Census Bureau records. Street numbers and recipient names are synthetic, and nothing is checked against an address-verification service.

Cities the generator draws from:

Boston
Worcester
Springfield
Cambridge
Lowell
Brockton

Key Counties & Administrative Jurisdictions

County boundaries determine local sales tax jurisdictions in Massachusetts:

Middlesex County
Worcester County
Essex County
Suffolk County
Norfolk County

Massachusetts Area Codes (MA)

Generated phone numbers use the area codes listed in the reference table above, paired with a 555 exchange so no number can reach a real line. Generate Massachusetts phone numbers.

Postal Delivery Standards & Format Nuances in Massachusetts

Leading zero in all ZIP codes (010xx–027xx, with Boston at 021xx), exposing CSV and database import pipelines to zero-drop corruption (e.g., 02138 becoming 2138).
Historic colonial town meeting governance where municipal town borders define public services rather than abolished county governments.

Massachusetts Address Examples in USPS Publication 28 Format

Residential Delivery Point:
100 Main St, Apt 4B Boston, MA 02108-1204

Commercial / Multi-Unit Delivery Point:
Massachusetts Logistics & Software Corp 500 Enterprise Way, Suite 300 Worcester, MA 01601-4810

Frequently Asked Questions about Massachusetts Addresses

What ZIP codes does Massachusetts use for mail and package delivery?: Massachusetts (MA) operates within the 5-digit ZIP prefix range 010xx–027xx. Mail routed to state capital Boston and key regional centers such as Boston, Worcester, Springfield adheres to these official USPS boundaries.
Which telephone area codes are valid for Massachusetts?: Massachusetts is served by 9 active North American Numbering Plan (NANPA) area codes: 339, 351, 413, 508, 617, 774, 781, 857, 978. Synthetic telephone numbers for Massachusetts use those area codes with a 555 exchange, which is reserved for fictitious use.
How many counties are in Massachusetts?: Massachusetts is divided into 14 counties, including major administrative regions such as Middlesex, Worcester, Essex, Suffolk. Generated street addresses use those names.
What postal formatting conventions and addressing quirks are unique to Massachusetts?: Leading zero in all ZIP codes (010xx–027xx, with Boston at 021xx), exposing CSV and database import pipelines to zero-drop corruption (e.g., 02138 becoming 2138). Historic colonial town meeting governance where municipal town borders define public services rather than abolished county governments. All addresses generated on this platform format secondary unit designators (Apt, Ste, Fl) and street suffixes according to USPS CASS standards.
Are the Massachusetts addresses generated on this page real places?: No. All street numbers, recipient names, and telephone numbers generated for Massachusetts are entirely synthetic and randomized for software testing, database seed scripts, and form validation. They use Massachusetts ZIP codes from public USPS data and real city names, but they do not correspond to real individuals or private residences.

Nearby & Bordering States

Explore test address generators for states sharing a geographic border with MA:

Massachusetts ZIP Prefixes

The first three digits of a ZIP code place an address within Massachusetts. These are the prefixes assigned to the state:

010xx, 011xx, 012xx, 014xx, 015xx, 016xx, 017xx, 018xx, 019xx, 020xx, 021xx, 022xx, 023xx, 024xx

Which processing facility sorts a given prefix is set by the current USPS labeling list L005 and changes as processing is consolidated, so it is not reproduced here. Look up a ZIP prefix to see its state and generate ZIP codes inside it.