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County ZIP codes · Maine · FIPS 23015

Lincoln County, ME ZIP Codes

Lincoln County, Maine has 28 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 27 residential and 1 for PO boxes or a single organization. Median household income ranges from $59,423 in 04543 (Damariscotta) to $108,750 in 04556 (Edgecomb) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Lincoln County?

04341 · Coopers Mills: –04342 · Dresden: $75k04348 · Jefferson: $79k04353 · Whitefield: $74k04535 · Alna: $93k04537 · Boothbay: $77k04538 · Boothbay Harbor: $57k04539 · Bristol: $96k04541 · Chamberlain: –04543 · Damariscotta: $59k04544 · East Boothbay: $59k04551 · Bremen: $100k04553 · Newcastle: $90k04554 · New Harbor: $85k04555 · Nobleboro: $100k04556 · Edgecomb: $109k04558 · Pemaquid: $92k04564 · Round Pond: $133k04568 · South Bristol: $55k04570 · Squirrel Island: –04571 · Trevett: $59k04572 · Waldoboro: $69k04573 · Walpole: $86k04575 · West Boothbay Harbor: $116k04576 · Southport: $89k04578 · Wiscasset: $81k04852 · Monhegan: –0434804572045780435304342045530455104535045550455604537045390454304564045580453804341 · Coopers Mills: –04342 · Dresden: $75k04348 · Jefferson: $79k04353 · Whitefield: $74k04535 · Alna: $93k04537 · Boothbay: $77k04538 · Boothbay Harbor: $57k04539 · Bristol: $96k04541 · Chamberlain: –04543 · Damariscotta: $59k04544 · East Boothbay: $59k04551 · Bremen: $100k04553 · Newcastle: $90k04554 · New Harbor: $85k04555 · Nobleboro: $100k04556 · Edgecomb: $109k04558 · Pemaquid: $92k04564 · Round Pond: $133k04568 · South Bristol: $55k04570 · Squirrel Island: –04571 · Trevett: $59k04572 · Waldoboro: $69k04573 · Walpole: $86k04575 · West Boothbay Harbor: $116k04576 · Southport: $89k04578 · Wiscasset: $81k04852 · Monhegan: –04348045720457804353043420455304551045350455504537045390454304341 · Coopers Mills: –04342 · Dresden: $75k04348 · Jefferson: $79k04353 · Whitefield: $74k04535 · Alna: $93k04537 · Boothbay: $77k04538 · Boothbay Harbor: $57k04539 · Bristol: $96k04541 · Chamberlain: –04543 · Damariscotta: $59k04544 · East Boothbay: $59k04551 · Bremen: $100k04553 · Newcastle: $90k04554 · New Harbor: $85k04555 · Nobleboro: $100k04556 · Edgecomb: $109k04558 · Pemaquid: $92k04564 · Round Pond: $133k04568 · South Bristol: $55k04570 · Squirrel Island: –04571 · Trevett: $59k04572 · Waldoboro: $69k04573 · Walpole: $86k04575 · West Boothbay Harbor: $116k04576 · Southport: $89k04578 · Wiscasset: $81k04852 · Monhegan: –04348045720457804353043420455304551045350455504537
The residential ZIP codes of Lincoln County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $69,107 and $78,929.

They carry 27 postal town names.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 27 residential ZIP codes in Lincoln County

Residential ZIP codes mainly in Lincoln County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
04572 Waldoboro 5,253 73 $69k $275k 100%
04578 Wiscasset 4,709 141 $81k $327k 100%
04348 Jefferson 3,484 46 $79k $286k 100%
04543 Damariscotta 2,192 176 $59k $364k 100%
04353 Whitefield 2,115 45 $74k $242k 100%
04553 Newcastle 1,913 66 $90k $398k 100%
04555 Nobleboro 1,906 101 $100k $353k 100%
04538 Boothbay Harbor 1,810 400 $57k $388k 100%
04537 Boothbay 1,685 105 $77k $359k 100%
04342 Dresden 1,645 54 $75k $240k 100%
04539 Bristol 1,456 88 $96k $347k 100%
04556 Edgecomb 1,251 69 $109k $348k 100%
04544 East Boothbay 978 260 $59k $412k 100%
04551 Bremen 917 56 $100k $425k 100%
04535 Alna 818 39 $93k $367k 100%
04573 Walpole 557 71 $86k $420k 100%
04576 Southport 547 107 $89k $490k 100%
04564 Round Pond 520 69 $133k $579k 100%
04554 New Harbor 514 126 $85k $502k 100%
04568 South Bristol 512 98 $55k $550k 100%
04571 Trevett 439 211 $59k $257k 100%
04558 Pemaquid 382 69 $92k $527k 100%
04575 West Boothbay Harbor 286 244 $116k $641k 100%
04852 Monhegan 120 141 – $702k 100%
04541 Chamberlain 45 129 – – 100%
04341 Coopers Mills 42 1,273 – – 100%
04570 Squirrel Island 3 11 – – 100%

Download the 28 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

PO Box and single-organization ZIP codes

ZIP codes in Lincoln County without a residential area (GeoNames postal codes)
ZIPPostal name
04549Isle Of Springs

Source: GeoNames postal codes (CC BY 4.0).

Which first three digits do Lincoln County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Lincoln County's ZIP codes use 3 prefixes: 043, 045 and 048.

Three-digit prefixes of Lincoln County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Lincoln County's
PrefixSectional centerHereAll codes
043 Southern, ME (SCF 040) 4 26
045 Southern, ME (SCF 040) 23 31
048 Southern, ME (SCF 040) 1 20

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.