Boston ZIP codes: US ZIP code list for Boston, Massachusetts (MA)
Quick answer
Boston, Massachusetts has 16 US ZIP codes, running 02108 to 02136 inside Suffolk County. Each carries the same 6.25% combined sales tax rate. ZIP boundaries are postal delivery routes, not tax boundaries — a code that crosses a city or district line can hold more than one rate, so destination-based sellers should validate by full street address.
- ZIP codes
- 16Median covered metro: 12
- Number span
- 2902108 to 02136
- Sorting prefixes
- 021USPS sectional centers
- Sales tax
- 6.25%Same in every listed code
Boston ZIP code footprint
How Boston's ZIP footprint compares with national norms.
16 ZIP codes are listed for Boston, covering a population of 653,833. They span 29 numbers, 02108 through 02136. The median covered metro on this site lists 12 codes; Boston ranks 1 of 94 by count. Large metros carry more codes because USPS splits a delivery area once carrier volume outgrows one route cluster, not because the city is geographically bigger.
All 16 codes share the 021 prefix. That first trio is the sectional center facility — the USPS plant that sorts mail for the region — so every piece addressed to Boston passes through one facility. The range runs 02108 to 02136.
ZIP boundaries are carrier routes, not city limits. USPS redraws them when delivery volume shifts; Massachusetts redraws tax and municipal lines on a different schedule entirely. A Boston mailing address does not prove an address sits inside Boston city limits, and a single code can straddle the boundary.
ZIP codes in Boston
All within Suffolk County, Massachusetts.
- 021086.25%
- 021096.25%
- 021106.25%
- 021116.25%
- 021136.25%
- 021146.25%
- 021156.25%
- 021166.25%
- 021186.25%
- 021276.25%
- 021286.25%
- 021296.25%
- 021306.25%
- 021346.25%
- 021356.25%
- 021366.25%
Why ZIP-based rate lookup is unreliable
USPS redraws ZIP codes when carrier routes change. Tax jurisdictions move with annexations, county lines and voter-approved districts. The two never line up. In Massachusetts, even without local add-ons, remote sellers should validate the full delivery address against the Massachusetts Department of Revenue lookup at the time of sale.
Frequently asked questions
Common questions about this area.
- How many ZIP codes does Boston have?
- 16. They run from 02108 to 02136 across 1 sectional center prefix (021), spanning 29 numbers.
- What is the first ZIP code in Boston, MA?
- 02108 is the lowest-numbered code serving Boston. Numbering runs roughly northeast to west nationally, so Boston's 021 prefix reflects its position in the Massachusetts sorting network, not its size.
- Do all Boston ZIP codes have the same sales tax rate?
- Inside Boston city limits, yes — 6.25% applies. A code that extends past the city line can carry a different rate on part of its territory. Validate by street address, not ZIP, when the sale is destination-based. Confirm current rates with your state revenue agency before filing.
Boston sales tax breakdown and calculator
More Boston data
Other Boston datasets on this site.
- Boston population and income
- Boston sales tax rate
- Boston property tax
- Boston cost of living
- Boston home values and rent
- Boston crime rates
- Boston public schools
- Boston weather normals
- Boston commute times
Statewide: Massachusetts cities · Massachusetts ZIP codes · Massachusetts sales tax · Massachusetts counties