| ZIP Codes: | 42 ZIP Codes (31 Standard, 11 PO Box, 0 Unique) [See All] |
| Area Code: | 207 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:12:30 PM |
| Population: | 216,731 [See All] |
| FIPS: | 23031 |
| CBSA: | Portland-South Portland, ME |
| Land Area: | 1,016 sq mi |
| Water Area: | 60 sq mi |
| Coordinates: | 43.4491, -70.6719 |
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216,731 residents live across 42 ZIPs covering 1,016 sq mi, served by 41 distinct USPS-recognized cities.
Population moved from 198,934 to 216,731 from 2014 to 2024 — a +8.9% change. 32 ZIPs gained residents, 4 lost.
The county's wealthiest ZIP 03905 (Kittery Point, $140,730 median) and poorest ZIP 04095 (West Newfield, $57,206) are 38.9 miles apart — a 2.5× income gap across local geography.
Median home values vary 3.5× across this county — from $247,300 in 04087 (Waterboro) to $875,700 in 03907 (Ogunquit).
Density varies 44× across the county — from 29 people/sq mi in 04047 (Parsonsfield) to 1,268 in 04064 (Old Orchard Beach).
Educational attainment ranges from 14.1% bachelor's+ in 04027 (Lebanon) to 64.2% in 03905 (Kittery Point) — the breadth of educational profiles across the area.
Within Maine, this is the #2 most populous of 16 counties and ranks #2 for median household income with the #1 fastest decade growth .
Weighted by population, the typical household earns about $90,206 across the county — reflecting what a typical resident sees, not a simple ZIP average.
36.2% of adults age 25+ hold a bachelor's degree or higher (59,056 of 162,952 reporting).
31 Standard delivery, 11 PO Box only, 0 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 04005 | Biddeford | Standard | 24,772 | $74,647 | 49.9 | 7.0% |
| 04072 | Saco | Standard | 20,819 | $92,241 | 39.7 | 11.0% |
| 04073 | Sanford | Standard | 17,414 | $72,917 | 38.8 | 6.7% |
| 04043 | Kennebunk | Standard | 11,820 | $107,804 | 35.6 | 7.7% |
| 04090 | Wells | Standard | 11,713 | $88,024 | 57.8 | 19.7% |
| 03909 | York | Standard | 10,943 | $115,608 | 37.0 | 11.8% |
| 04064 | Old Orchard Beach | Standard | 8,632 | $59,887 | 6.8 | 3.2% |
| 04093 | Buxton | Standard | 8,512 | $100,144 | 40.5 | 5.4% |
| 03904 | Kittery | Standard | 8,389 | $85,084 | 11.3 | 4.6% |
| 03901 | Berwick | Standard | 8,175 | $94,771 | 37.7 | 10.4% |
| 04046 | Kennebunkport | Standard | 8,102 | $102,529 | 43.3 | 6.5% |
| 04002 | Alfred | Standard | 7,737 | $84,537 | 68.5 | 4.5% |
| 03908 | South Berwick | Standard | 7,431 | $98,289 | 32.5 | 2.1% |
| 03903 | Eliot | Standard | 7,146 | $101,522 | 21.4 | 14.6% |
| 04027 | Lebanon | Standard | 6,629 | $97,750 | 55.8 | 9.1% |
| 03906 | North Berwick | Standard | 5,368 | $105,156 | 38.4 | 15.6% |
| 04042 | Hollis Center | Standard | 4,872 | $95,950 | 32.8 | 12.2% |
| 04083 | Springvale | Standard | 4,833 | $72,207 | 10.2 | 7.8% |
| 04049 | Limington | Standard | 4,017 | $84,675 | 43.4 | 10.4% |
| 04048 | Limerick | Standard | 3,400 | $101,172 | 28.6 | 13.3% |
| 04061 | North Waterboro | Standard | 3,074 | $94,023 | 21.2 | -5.7% |
| 04076 | Shapleigh | Standard | 2,976 | $88,140 | 41.7 | 11.1% |
| 04030 | East Waterboro | Standard | 2,731 | $72,548 | 16.0 | 4.0% |
| 04001 | Acton | Standard | 2,721 | $78,750 | 40.3 | 9.1% |
| 03902 | Cape Neddick | Standard | 2,665 | $133,676 | 19.5 | 16.6% |
| 04087 | Waterboro | Standard | 2,250 | $98,105 | 19.7 | 20.8% |
| 03905 | Kittery Point | Standard | 2,084 | $140,730 | 6.5 | 34.5% |
| 04020 | Cornish | Standard | 1,803 | $69,038 | 22.4 | 30.4% |
| 04047 | Parsonsfield | Standard | 1,715 | $72,045 | 59.6 | 3.4% |
| 04095 | West Newfield | Standard | 1,480 | $57,206 | 34.3 | 10.7% |
| 03907 | Ogunquit | Standard | 1,379 | $114,259 | 4.2 | 20.9% |
| 04063 | Ocean Park | PO Box | 612 | $61,667 | 0.7 | 94.3% |
| 03911 | York Harbor | PO Box | 363 | $156,299 | 0.0 | 233.0% |
| 04056 | Newfield | PO Box | 100 | $57,083 | 0.0 | -60.0% |
| 04006 | Biddeford Pool | PO Box | 39 | — | 0.1 | -71.9% |
| 03910 | York Beach | PO Box | 15 | — | 0.0 | -96.8% |
| 04054 | Moody | PO Box | — | — | 0.0 | — |
| 04014 | Cape Porpoise | PO Box | — | — | 0.0 | — |
| 04094 | West Kennebunk | PO Box | — | — | 0.0 | — |
| 04007 | Biddeford | PO Box | — | — | 0.0 | — |
| 04028 | East Parsonsfield | PO Box | — | — | 0.0 | — |
| 04004 | Bar Mills | PO Box | — | — | 0.0 | — |