| ZIP Codes: | 20 ZIP Codes (18 Standard, 2 PO Box, 0 Unique) [See All] |
| Area Code: | 207 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 11:53:48 PM |
| Population: | 40,228 [See All] |
| FIPS: | 23027 |
| Land Area: | 768 sq mi |
| Water Area: | 123 sq mi |
| Coordinates: | 44.4912, -69.1225 |
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40,228 residents live across 20 ZIPs covering 768 sq mi, served by 20 distinct USPS-recognized cities.
Population moved from 38,945 to 40,228 from 2014 to 2024 — a +3.3% change. 12 ZIPs gained residents, 6 lost.
The county's wealthiest ZIP 04496 (Winterport, $98,333 median) and poorest ZIP 04987 (Troy, $44,583) are 16.4 miles apart — a 2.2× income gap across local geography.
Median home values vary 2.0× across this county — from $178,100 in 04922 (Burnham) to $360,600 in 04849 (Lincolnville).
Density varies 5× across the county — from 25 people/sq mi in 04922 (Burnham) to 120 in 04915 (Belfast).
Educational attainment ranges from 20.8% bachelor's+ in 04922 (Burnham) to 49.5% in 04849 (Lincolnville) — the breadth of educational profiles across the area.
Within Maine, this is the #11 most populous of 16 counties and ranks #9 for median household income .
Weighted by population, the typical household earns about $73,643 across the county — reflecting what a typical resident sees, not a simple ZIP average.
34.3% of adults age 25+ hold a bachelor's degree or higher (10,391 of 30,251 reporting).
18 Standard delivery, 2 PO Box only, 0 single-entity Unique ZIPs serve this county.
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 04915 | Belfast | Standard | 9,107 | $66,362 | 76.1 | 3.6% |
| 04849 | Lincolnville | Standard | 4,017 | $80,377 | 63.9 | 6.8% |
| 04496 | Winterport | Standard | 3,850 | $98,333 | 36.6 | 2.1% |
| 04974 | Searsport | Standard | 2,655 | $64,303 | 29.4 | 0.6% |
| 04981 | Stockton Springs | Standard | 2,575 | $77,560 | 44.2 | 21.3% |
| 04986 | Thorndike | Standard | 2,228 | $71,833 | 57.8 | 36.2% |
| 04988 | Unity | Standard | 1,894 | $62,929 | 51.3 | -25.4% |
| 04952 | Morrill | Standard | 1,790 | $67,763 | 35.2 | -6.5% |
| 04921 | Brooks | Standard | 1,775 | $63,646 | 51.8 | 15.0% |
| 04973 | Searsmont | Standard | 1,646 | $87,000 | 39.1 | 0.5% |
| 04941 | Freedom | Standard | 1,577 | $65,662 | 60.3 | 7.4% |
| 04354 | Palermo | Standard | 1,473 | $89,095 | 44.4 | -4.0% |
| 04438 | Frankfort | Standard | 1,098 | $80,000 | 26.8 | -8.7% |
| 04951 | Monroe | Standard | 1,001 | $81,300 | 38.3 | 7.5% |
| 04987 | Troy | Standard | 984 | $44,583 | 33.0 | 6.5% |
| 04949 | Liberty | Standard | 969 | $71,146 | 28.9 | 34.4% |
| 04922 | Burnham | Standard | 953 | $59,261 | 37.5 | -18.3% |
| 04848 | Islesboro | Standard | 636 | $88,438 | 13.8 | -1.1% |
| 04850 | Lincolnville Center | PO Box | — | — | 0.0 | — |
| 04972 | Sandy Point | PO Box | — | — | 0.0 | — |