First three digits · Maine
ZIP Codes Starting with
60 ZIP codes start with 042, sorted at the Southern, ME (SCF 040) sectional center (USPS labeling list L005, effective October 1, 2026) in Maine: 48 residential ZIP codes across 6 counties and 12 PO Box or single-organization codes (Census 2020 ZCTAs and GeoNames postal codes, October 2026).
What do the digits 042 mean?
The first digit, 0, is one of ten national areas (Connecticut, Massachusetts, Maine, New Hampshire, New Jersey, Puerto Rico, Rhode Island, Vermont, U.S. Virgin Islands and Armed Forces Europe). The first three, 042, route mail to a sectional center: USPS labeling list L005 (effective October 1, 2026) sends letters for 042 to the Southern, ME (SCF 040) facility. The last two digits pick the delivery area. By residents, the largest town names among the 042 ZIP codes are Lewiston, Auburn, Sabattus, Oxford, Poland and Rumford.
The same facility sorts 7 prefixes, 240 ZIP codes in all: 039, 040, 041, 042, 043, 045, 048.
Where are the 042 ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All ZIP codes starting with 042
| County | ||||||
|---|---|---|---|---|---|---|
| 04210 | Auburn | Androscoggin County | 24,602 | 415 | $67k | $282k |
| 04211 | Auburn | Androscoggin County | PO Box or unique | – | – | – |
| 04212 | Auburn | Androscoggin County | PO Box or unique | – | – | – |
| 04216 | Andover | Oxford County | 578 | 4 | $52k | $172k |
| 04217 | Bethel | Oxford County | 3,387 | 18 | $61k | $330k |
| 04219 | Bryant Pond | Oxford County | 1,399 | 23 | $62k | $216k |
| 04220 | Buckfield | Oxford County | 3,717 | 45 | $80k | $222k |
| 04221 | Canton | Oxford County | 1,191 | 41 | $53k | $165k |
| 04222 | Durham | Androscoggin County | 4,262 | 111 | $99k | $322k |
| 04223 | Danville | Androscoggin County | PO Box or unique | – | – | – |
| 04224 | Dixfield | Oxford County | 3,110 | 42 | $72k | $157k |
| 04225 | Dryden | Franklin County | PO Box or unique | – | – | – |
| 04226 | East Andover | Oxford County | 101 | 20 | $48k | $125k |
| 04227 | East Dixfield | Oxford County | 35 | 241 | – | – |
| 04228 | East Livermore | Androscoggin County | PO Box or unique | – | – | – |
| 04230 | East Poland | Androscoggin County | PO Box or unique | – | – | – |
| 04231 | Stoneham | Oxford County | 271 | 8 | $64k | $226k |
| 04234 | East Wilton | Franklin County | no residents | 0 | – | – |
| 04236 | Greene | Androscoggin County | 4,417 | 137 | $98k | $270k |
| 04237 | Hanover | Oxford County | 276 | 39 | $55k | $335k |
| 04238 | Hebron | Oxford County | 1,105 | 54 | $93k | $242k |
| 04239 | Jay | Franklin County | 4,657 | 96 | $70k | $169k |
| 04240 | Lewiston | Androscoggin County | 38,324 | 1,122 | $55k | $235k |
| 04241 | Lewiston | Androscoggin County | PO Box or unique | – | – | – |
| 04243 | Lewiston | Androscoggin County | PO Box or unique | – | – | – |
| 04250 | Lisbon | Androscoggin County | 4,782 | 408 | $84k | $258k |
| 04252 | Lisbon Falls | Androscoggin County | 4,968 | 447 | $74k | $259k |
| 04253 | Livermore | Androscoggin County | 1,868 | 50 | $70k | $222k |
| 04254 | Livermore Falls | Androscoggin County | 3,102 | 158 | $46k | $148k |
| 04255 | Greenwood | Oxford County | 759 | 20 | $76k | $225k |
| 04256 | Mechanic Falls | Androscoggin County | 3,134 | 285 | $70k | $271k |
| 04257 | Mexico | Oxford County | 2,782 | 119 | $56k | $111k |
| 04258 | Minot | Androscoggin County | 2,794 | 94 | $96k | $295k |
| 04259 | Monmouth | Kennebec County | 3,610 | 124 | $84k | $298k |
| 04260 | New Gloucester | Cumberland County | 5,766 | 122 | $109k | $357k |
| 04261 | Newry | Oxford County | 268 | 1 | $46k | – |
| 04262 | North Jay | Franklin County | PO Box or unique | – | – | – |
| 04263 | Leeds | Androscoggin County | 2,285 | 57 | $85k | $258k |
| 04265 | North Monmouth | Kennebec County | 552 | 94 | $44k | $170k |
| 04266 | North Turner | Androscoggin County | PO Box or unique | – | – | – |
| 04267 | North Waterford | Oxford County | 26 | 58 | – | – |
| 04268 | Norway | Oxford County | 5,228 | 116 | $54k | $216k |
| 04270 | Oxford | Oxford County | 6,284 | 80 | $74k | $216k |
| 04271 | Paris | Oxford County | no residents | 0 | – | – |
| 04274 | Poland | Androscoggin County | 5,954 | 141 | $86k | $284k |
| 04275 | Roxbury | Oxford County | 526 | 6 | $70k | $119k |
| 04276 | Rumford | Oxford County | 5,942 | 87 | $38k | $128k |
| 04280 | Sabattus | Androscoggin County | 7,040 | 169 | $63k | $198k |
| 04281 | South Paris | Oxford County | 5,317 | 131 | $75k | $240k |
| 04282 | Turner | Androscoggin County | 5,891 | 99 | $100k | $285k |
| 04284 | Wayne | Kennebec County | 1,101 | 60 | $93k | $363k |
| 04285 | Weld | Franklin County | 459 | 8 | $62k | $269k |
| 04286 | West Bethel | Oxford County | no residents | 0 | – | – |
| 04287 | Bowdoin | Sagadahoc County | 3,188 | 73 | $91k | $293k |
| 04288 | West Minot | Androscoggin County | PO Box or unique | – | – | – |
| 04289 | West Paris | Oxford County | 1,808 | 73 | $56k | $193k |
| 04290 | Peru | Oxford County | 1,501 | 32 | $67k | $141k |
| 04291 | West Poland | Androscoggin County | PO Box or unique | – | – | – |
| 04292 | Sumner | Oxford County | 845 | 19 | $58k | $150k |
| 04294 | Wilton | Franklin County | 3,982 | 75 | $63k | $199k |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; GeoNames postal codes (CC BY 4.0) for codes without a residential area.