Portland, Maine ZIP Codes
- ZIP records
4 - Sum of listed ZIP population estimates
67,935 - Counties represented
1 - Population range
213–32,024 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 | 04103 | Portland | Cumberland | 32,024 |
| 2 | 04101 | Portland | Cumberland | 18,431 |
| 3 | 04102 | Portland | Cumberland | 17,267 |
| 4 | 04109 | Portland | Cumberland | 213 |
Counties represented
All ZIP Codes in Portland
- ZIP 04101 — Cumberland County
- ZIP 04102 — Cumberland County
- ZIP 04103 — Cumberland County
- ZIP 04109 — Cumberland County
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.