ZIP Code 02138
02138 is one of Massachusetts's ZIP codes, delivering to addresses in Cambridge, Middlesex County.
- City
- Cambridge
- County
- Middlesex County
- State
- Massachusetts
- Prefix
- 021xx
Where this code sits
02138 is part of the 021xx range, the group of codes handled by one mail processing centre. Cambridge is served by 6 ZIP codes in total; the full list, with the county each falls in, is on the Cambridge page.
Cambridge Massachusetts ZIP codes →
Area codes over the same ground
Postal and telephone geography are drawn separately, so these codes cover the area 02138 delivers to without sharing its boundary.
- 339 Area code 339
- 351 Area code 351
- 617 Area code 617
- 781 Area code 781
- 857 Area code 857
- 978 Area code 978
ZIP codes nearest 02138
| ZIP code | Distance | Delivers to |
|---|---|---|
| ZIP code 02238 | 1.0 mi | Cambridge, MA |
| ZIP code 02140 | 1.2 mi | Cambridge, MA |
| ZIP code 02143 | 1.2 mi | Somerville, MA |
| ZIP code 02139 | 1.4 mi | Cambridge, MA |
| ZIP code 02144 | 1.6 mi | Somerville, MA |
| ZIP code 02134 | 1.7 mi | Allston, MA |
| ZIP code 02145 | 1.9 mi | Somerville, MA |
| ZIP code 02141 | 2.2 mi | Cambridge, MA |
Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Scope ZIP code 02138. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.