Cambridge, Massachusetts ZIP Codes
- ZIP records
5 - Sum of listed ZIP population estimates
119,000 - Counties represented
1 - Population range
4,737–40,033 per ZIP
Population sum includes positive estimates in these ZIP records; it is not an official city population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | County | Population estimate |
|---|---|---|---|---|
| 1 | 02139 | Cambridge | Middlesex | 40,033 |
| 2 | 02138 | Cambridge | Middlesex | 38,509 |
| 3 | 02140 | Cambridge | Middlesex | 21,204 |
| 4 | 02141 | Cambridge | Middlesex | 14,517 |
| 5 | 02142 | Cambridge | Middlesex | 4,737 |
Counties represented
All ZIP Codes in Cambridge
- ZIP 02138 — Middlesex County
- ZIP 02139 — Middlesex County
- ZIP 02140 — Middlesex County
- ZIP 02141 — Middlesex County
- ZIP 02142 — Middlesex County
Browse all ZIP data for Massachusetts
Methodology: ZIP records are grouped by the source file's primary city and state fields. Population ranges and sums use positive ZIP-level estimates; sums should not be read as official city totals. County links use each record's listed county assignment.