| ZIP Codes: | 34 ZIP Codes (24 Standard, 8 PO Box, 2 Unique) [See All] |
| Area Code: | 207 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:12:29 PM |
| Population: | 126,772 [See All] |
| FIPS: | 23011 |
| CBSA: | Augusta-Waterville, ME |
| Land Area: | 944 sq mi |
| Water Area: | 84 sq mi |
| Coordinates: | 44.3844, -69.7923 |
| Quick Link: |
126,772 residents live across 34 ZIPs covering 944 sq mi, served by 29 distinct USPS-recognized cities.
Population moved from 121,094 to 126,772 from 2014 to 2024 — a +4.7% change. 18 ZIPs gained residents, 8 lost.
The county's wealthiest ZIP 04358 (South China, $96,309 median) and poorest ZIP 04330 (Augusta, $54,775) are 11.7 miles apart — a 1.8× income gap across local geography.
Median home values vary 2.1× across this county — from $174,300 in 04346 (Randolph) to $362,800 in 04284 (Wayne).
Density varies 18× across the county — from 41 people/sq mi in 04352 (Mount Vernon) to 721 in 04346 (Randolph).
Educational attainment ranges from 16.8% bachelor's+ in 04346 (Randolph) to 52.5% in 04347 (Hallowell) — the breadth of educational profiles across the area.
Within Maine, this is the #4 most populous of 16 counties and ranks #8 for median household income .
Weighted by population, the typical household earns about $68,901 across the county — reflecting what a typical resident sees, not a simple ZIP average.
31.9% of adults age 25+ hold a bachelor's degree or higher (29,215 of 91,499 reporting).
24 Standard delivery, 8 PO Box only, 2 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 04901 | Waterville | Standard | 27,870 | $57,403 | 81.7 | 6.0% |
| 04330 | Augusta | Standard | 26,690 | $54,775 | 124.3 | 3.3% |
| 04345 | Gardiner | Standard | 12,579 | $77,410 | 76.0 | 9.8% |
| 04963 | Oakland | Standard | 7,524 | $77,708 | 59.4 | 2.1% |
| 04364 | Winthrop | Standard | 6,191 | $86,470 | 38.6 | 4.1% |
| 04989 | Vassalboro | Standard | 4,592 | $72,300 | 48.5 | 13.1% |
| 04358 | South China | Standard | 4,526 | $96,309 | 55.5 | 6.5% |
| 04350 | Litchfield | Standard | 3,680 | $84,904 | 39.3 | 2.2% |
| 04259 | Monmouth | Standard | 3,610 | $83,919 | 33.8 | 16.0% |
| 04927 | Clinton | Standard | 3,385 | $71,458 | 48.9 | -1.2% |
| 04917 | Belgrade | Standard | 3,351 | $88,338 | 58.5 | 15.0% |
| 04344 | Farmingdale | Standard | 3,017 | $71,635 | 11.6 | 7.3% |
| 04363 | Windsor | Standard | 2,690 | $63,178 | 35.5 | 4.4% |
| 04355 | Readfield | Standard | 2,651 | $86,504 | 30.9 | 3.3% |
| 04347 | Hallowell | Standard | 2,592 | $68,398 | 6.1 | 6.3% |
| 04351 | Manchester | Standard | 2,424 | $92,031 | 22.6 | -5.6% |
| 04910 | Albion | Standard | 2,204 | $62,361 | 39.5 | 20.8% |
| 04352 | Mount Vernon | Standard | 1,716 | $74,395 | 41.9 | 3.6% |
| 04346 | Randolph | Standard | 1,610 | $66,574 | 2.2 | -12.4% |
| 04349 | Kents Hill | Standard | 1,383 | $59,500 | 33.7 | 19.4% |
| 04284 | Wayne | Standard | 1,101 | $93,194 | 24.8 | 7.7% |
| 04265 | North Monmouth | Standard | 552 | $43,506 | 5.6 | -44.4% |
| 04360 | Vienna | Standard | 536 | $75,481 | 24.4 | -2.4% |
| 04359 | South Gardiner | PO Box | 298 | — | 1.0 | -43.8% |
| 04918 | Belgrade Lakes | Standard | 0 | — | 0.0 | -100.0% |
| 04926 | China Village | PO Box | 0 | — | 0.0 | -100.0% |
| 04962 | North Vassalboro | PO Box | — | — | 0.0 | — |
| 04935 | East Vassalboro | PO Box | — | — | 0.0 | — |
| 04903 | Waterville | PO Box | — | — | 0.0 | — |
| 04332 | Augusta | PO Box | — | — | 0.0 | — |
| 04336 | Augusta | Unique | — | — | 0.0 | — |
| 04333 | Augusta | Unique | — | — | 0.0 | — |
| 04338 | Augusta | PO Box | — | — | 0.0 | — |
| 04343 | East Winthrop | PO Box | — | — | 0.0 | — |