| ZIP Codes: | 9 ZIP Codes (8 Standard, 1 PO Box, 0 Unique) [See All] |
| Area Code: | 207 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 11:53:48 PM |
| Population: | 37,285 [See All] |
| FIPS: | 23023 |
| CBSA: | Portland-South Portland, ME |
| Land Area: | 296 sq mi |
| Water Area: | 54 sq mi |
| Coordinates: | 43.9337, -69.8503 |
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37,285 residents live across 9 ZIPs covering 296 sq mi, served by 9 distinct USPS-recognized cities.
Population moved from 35,102 to 37,285 from 2014 to 2024 — a +6.2% change. 7 ZIPs gained residents, 1 lost.
The county's wealthiest ZIP 04008 (Bowdoinham, $108,479 median) and poorest ZIP 04357 (Richmond, $65,854) are 6.8 miles apart — a 1.6× income gap across local geography.
Median home values vary 1.8× across this county — from $242,700 in 04357 (Richmond) to $427,200 in 04548 (Georgetown).
Density varies 7× across the county — from 42 people/sq mi in 04548 (Georgetown) to 282 in 04530 (Bath).
Educational attainment ranges from 30.4% bachelor's+ in 04287 (Bowdoin) to 52.9% in 04579 (Woolwich) — the breadth of educational profiles across the area.
Within Maine, this is the #12 most populous of 16 counties and ranks #3 for median household income with the #3 fastest decade growth .
Weighted by population, the typical household earns about $88,437 across the county — reflecting what a typical resident sees, not a simple ZIP average.
44.2% of adults age 25+ hold a bachelor's degree or higher (12,623 of 28,531 reporting).
8 Standard delivery, 1 PO Box only, 0 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 04530 | Bath | Standard | 11,275 | $79,649 | 40.0 | 3.1% |
| 04086 | Topsham | Standard | 9,706 | $91,028 | 36.1 | 11.2% |
| 04357 | Richmond | Standard | 3,566 | $65,854 | 32.5 | 5.2% |
| 04287 | Bowdoin | Standard | 3,188 | $91,239 | 43.6 | 3.1% |
| 04579 | Woolwich | Standard | 3,158 | $102,175 | 40.3 | 3.4% |
| 04008 | Bowdoinham | Standard | 3,142 | $108,479 | 43.0 | 9.6% |
| 04562 | Phippsburg | Standard | 2,238 | $107,833 | 36.7 | 12.9% |
| 04548 | Georgetown | Standard | 1,012 | $84,250 | 24.0 | -3.6% |
| 04565 | Sebasco Estates | PO Box | — | — | 0.0 | — |