Portland ZIP Code Map and List
Find 9 Portland ZIP code entries with county details, coordinates, and quick links to Google Maps and Waze. Browse the ZIP code map and local ZIP table.
Portland ZIP Codes at a Glance
Portland, Maine has 9 ZIP codes across Cumberland County. Use this map to locate ZIP code areas and verify exact addresses with local postal records before relying on ZIP boundaries for delivery or official purposes.
About ZIP codes in Portland
Portland is Maine's largest city and a regional hub for business, healthcare, and education. ZIP code lookup is useful for mail delivery, service area planning, and understanding how postal boundaries divide the city. However, ZIP codes don't follow strict municipal borders—they're organized by USPS delivery routes, which can split neighborhoods or extend across multiple towns. This map helps visualize where each code is centered, though actual service areas may vary.
How to Use This ZIP Code Map
Start with the Portland ZIP code map to see where the listed ZIP code points sit around the city. Then use the table to compare postal place labels, counties, and coordinates. For final mail delivery, confirm the full street address with USPS or another address-level lookup tool.
Data quality note: Five ZIP codes (04104, 04112, 04122, 04123, 04124) share the same source coordinate at the city center. This reflects how USPS assigns multiple codes to overlapping delivery zones. Check the exact address to confirm which ZIP applies to a specific location.
Portland ZIP Code Map
This map shows the geographic distribution of Portland's 9 ZIP codes. Each marker represents the postal code's center point based on GeoNames and Census data. Zoom in to see how codes cluster in the downtown area and spread across the city.
Printable Portland ZIP Code Map
For a printable Portland ZIP code map, open the map image in a larger view and use your browser print dialog. Choose landscape orientation for the map and portrait orientation if you mainly need the ZIP code table. Because ZIP codes can change and postal areas do not always match city limits, printouts should be treated as reference copies rather than official USPS maps.
Portland ZIP Code Table
The table below lists all Portland ZIP codes with their assigned county and map coordinates. Use it to cross-reference a ZIP code or find which code serves a particular area. Remember that boundaries are approximate.
| ZIP Code | Postal place | County | Coordinates | Map |
|---|---|---|---|---|
| 04101 | Portland | Cumberland County | 43.6606, -70.2589 | GoogleWaze |
| 04102 | Portland | Cumberland County | 43.6602, -70.2898 | GoogleWaze |
| 04103 | Portland | Cumberland County | 43.6876, -70.2876 | GoogleWaze |
| 04104 | Portland | Cumberland County | 43.6615, -70.2553 | GoogleWaze |
| 04109 | Portland | Cumberland County | 43.6783, -70.1987 | GoogleWaze |
| 04112 | Portland | Cumberland County | 43.6615, -70.2553 | GoogleWaze |
| 04122 | Portland | Cumberland County | 43.6615, -70.2553 | GoogleWaze |
| 04123 | Portland | Cumberland County | 43.6615, -70.2553 | GoogleWaze |
| 04124 | Portland | Cumberland County | 43.6615, -70.2553 | GoogleWaze |
What each Portland ZIP code is useful for
ZIP codes do not always match exact neighborhoods, but these notes add context to the table and help you decide which entries to check first.
Downtown Portland
Central Portland postal code, commonly associated with downtown business and government offices. Centered near the city core.
West Portland
Serves western Portland neighborhoods. Check the exact address to confirm delivery zone, as ZIP boundaries may not align with street-level expectations.
North Portland
Covers northern Portland areas. Often used for residential and commercial mail delivery in this sector.
Central Portland
One of several codes centered near downtown. Verify the exact street address to determine which ZIP applies, as multiple codes serve overlapping zones.
East Portland
Eastern Portland postal code. May be useful for identifying service areas on the city's eastern side.
Central Portland
Shares coordinates with other downtown codes (04104, 04122, 04123, 04124). These overlapping assignments reflect USPS delivery route organization. Always verify the exact address.
Central Portland
Downtown-centered code with shared coordinates. Check the specific street address to confirm which code serves that location.
Central Portland
Another downtown code sharing the central coordinate. Exact address lookup is essential to determine the correct ZIP for mail or service purposes.
Central Portland
Final downtown code in the overlapping group. Confirm the exact address with USPS or local postal resources before using for official purposes.
Portland ZIP Codes by County
All Portland ZIP codes fall within Cumberland County. This county encompasses the Portland metro area and surrounding communities, making it a natural region for mail, business, and service planning.
Cumberland County
04101, 04102, 04103, 04104, 04109, 04112, 04122, 04123, 04124
ZIP Codes vs ZCTAs
ZIP codes are USPS delivery routes, not official geographic boundaries. The Census Bureau publishes ZCTAs (ZIP Code Tabulation Areas) as approximate statistical boundaries. This map shows postal codes; actual service areas may differ. For precise boundaries, contact USPS or consult local GIS resources.
Frequently Asked Questions
How do I know which ZIP code applies to my exact address?
This map shows postal code centers, not precise boundaries. For an exact address, use the USPS ZIP Code Lookup tool or contact your local post office. Multiple codes may serve the same neighborhood, so verification is important for mail delivery and official forms.
What's the difference between a ZIP code and a ZCTA?
ZIP codes are USPS delivery routes and are not published as official boundaries. ZCTAs (ZIP Code Tabulation Areas) are Census Bureau approximations of ZIP code areas, used for statistical purposes. Neither is a precise geographic boundary. This map shows postal codes; for statistical analysis, use Census ZCTA data.
Why do some ZIP codes share the same map coordinate?
Five Portland codes (04104, 04112, 04122, 04123, 04124) share a downtown center point. This reflects how USPS assigns multiple codes to overlapping delivery zones in the same area. The shared coordinate indicates they serve the same general region; check the exact address to determine which code applies.
Can I use this map to plan a service area or delivery route?
This map is useful for general reference, but not for official planning. ZIP code boundaries are not precise, and delivery routes may not follow ZIP lines. For service area planning, consult USPS directly or use detailed GIS mapping resources.
Is this an official USPS map?
No. This map is based on public postal code data from GeoNames and Census sources. It shows approximate locations and is not an official USPS product. For authoritative boundary information, contact USPS or your local postal district.
What if I need population or area data for a Portland ZIP code?
Population and area data were not available for Portland entries in this dataset. For demographic information, consult the US Census Bureau's ZCTA data or contact the City of Portland planning department.
Data sources and methodology
Data sourced from GeoNames Postal Code Database, US Census ZCTA reference files, and manual validation. Coordinates represent postal code centers, not boundaries. Sources were cross-checked for accuracy as of May 2026. Population and area data were unavailable for Portland entries. This map is not an official USPS product and should not be used as a definitive boundary reference.
For exact mail delivery, always verify the final address and ZIP code with USPS or another official address source.
- GeoNames Postal Code Data
- US Census ZCTA reference
- Manual validation
Last updated: 2026-05-23
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