Dorchester, Massachusetts ZIP Codes
- ZIP records
3 - Sum of listed ZIP population estimates
86,181 - Counties represented
1 - Population range
23,479–33,662 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 | 02125 | Dorchester | Suffolk | 33,662 |
| 2 | 02121 | Dorchester | Suffolk | 29,040 |
| 3 | 02122 | Dorchester | Suffolk | 23,479 |
Counties represented
All ZIP Codes in Dorchester
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.