Most populous ZIP codes in Maine
Top 25 most populous ZIP codes in Maine. #1 is 04401 (Bangor) with about 44,418 residents. Compare population, income, and housing on US5.
These ZIP codes have the largest populations in Maine. Population totals are aggregated from published ZIP-area Census estimates on US5.
The largest codes are 04401 (Bangor) with about 44,418 residents; 04240 (Lewiston) with about 37,886 residents; 04103 (Portland) with about 31,705 residents.
Open any ZIP for a full demographics, income, and housing profile, or return to the Maine state page for the complete ZIP table.
Ranked ZIP codes
| # | ZIP | City | County | Population | Population | Income | Home value |
|---|---|---|---|---|---|---|---|
| 1 | 04401 | Bangor | Penobscot County | 44,418 | 44,418 | $66,136 | $229,600 |
| 2 | 04240 | Lewiston | Androscoggin County | 37,886 | 37,886 | $56,558 | $214,200 |
| 3 | 04103 | Portland | Cumberland County | 31,705 | 31,705 | $90,682 | $421,800 |
| 4 | 04901 | Waterville | Kennebec County | 27,431 | 27,431 | $54,122 | $188,800 |
| 5 | 04106 | South Portland | Cumberland County | 26,966 | 26,966 | $83,744 | $403,500 |
| 6 | 04330 | Augusta | Kennebec County | 26,517 | 26,517 | $55,158 | $197,600 |
| 7 | 04005 | Biddeford | York County | 24,698 | 24,698 | $71,268 | $351,700 |
| 8 | 04210 | Auburn | Androscoggin County | 24,294 | 24,294 | $66,552 | $254,600 |
| 9 | 04074 | Oak Hill | Cumberland County | 22,527 | 22,527 | $125,642 | $502,700 |
| 10 | 04011 | Brunswick | Cumberland County | 22,081 | 22,081 | $74,102 | $343,600 |
| 11 | 04072 | Saco | York County | 20,636 | 20,636 | $84,328 | $370,300 |
| 12 | 04092 | Westbrook | Cumberland County | 20,484 | 20,484 | $85,868 | $341,800 |
| 13 | 04062 | North Windham | Cumberland County | 19,041 | 19,041 | $98,946 | $370,900 |
| 14 | 04038 | Gorham | Cumberland County | 18,192 | 18,192 | $110,181 | $426,300 |
| 15 | 04101 | Portland | Cumberland County | 18,128 | 18,128 | $60,726 | $600,600 |
| 16 | 04102 | Portland | Cumberland County | 17,642 | 17,642 | $79,631 | $464,100 |
| 17 | 04073 | Sanford | York County | 17,385 | 17,385 | $69,135 | $259,500 |
| 18 | 04605 | Ellsworth | Hancock County | 14,695 | 14,695 | $72,083 | $230,900 |
| 19 | 04105 | Falmouth | Cumberland County | 12,557 | 12,557 | $131,833 | $669,500 |
| 20 | 04345 | Gardiner | Kennebec County | 12,363 | 12,363 | $68,844 | $208,700 |
| 21 | 04043 | Kennebunk | York County | 11,692 | 11,692 | $101,204 | $460,600 |
| 22 | 04530 | Bath | Sagadahoc County | 11,564 | 11,564 | $78,482 | $306,900 |
| 23 | 04090 | — | York County | 11,544 | 11,544 | $83,900 | $445,800 |
| 24 | 03909 | Cape Neddick | York County | 11,021 | 11,021 | $108,889 | $589,400 |
| 25 | 04938 | Farmington | Franklin County | 10,368 | 10,368 | $54,281 | $169,300 |
Frequently asked questions
What are the most populous ZIP codes in Maine?
The largest ZIP on this board is 04401 (Bangor) with about 44,418 residents. See the ranked table for the full top 25.
How does US5 rank ZIP codes in Maine?
We rank indexable ZIP codes by population from high to low.
Where can I explore all ZIP codes in Maine?
Visit the Maine state page for the full ZIP table, demographics summary, and sortable income/housing columns.