Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — RANKINGS/ME/LARGEST-AREA

Largest ZIP Codes in Maine by Land Area

What this measures. Land area of the Census tabulation area, in square miles. Water is excluded. Source: Census Gazetteer, data release 2026-10-12.

# ZIP City County Land area
1 04441 Greenville Piscataquis 981.36 sq mi
2 04765 Patten Penobscot 750.56 sq mi
3 04462 Millinocket Piscataquis 702.79 sq mi
4 04945 Jackman Somerset 642.38 sq mi
5 04936 Eustis Franklin 455.65 sq mi
6 04408 Aurora Hancock 404.47 sq mi
7 04961 New Portland Somerset 377.33 sq mi
8 04622 Cherryfield Washington 318.93 sq mi
9 04747 Island Falls Aroostook 309.83 sq mi
10 04732 Ashland Aroostook 267.18 sq mi
11 04605 Ellsworth Hancock 265.45 sq mi
12 04457 Lincoln Penobscot 258.78 sq mi
13 04478 Rockwood Somerset 257.61 sq mi
14 04730 Houlton Aroostook 244.63 sq mi
15 04966 Phillips Franklin 237.80 sq mi
16 04414 Brownville Piscataquis 236.47 sq mi
17 04764 Oxbow Aroostook 229.66 sq mi
18 04487 Springfield Penobscot 226.73 sq mi
19 04970 Rangeley Franklin 224.81 sq mi
20 04668 Princeton Washington 220.41 sq mi
21 04920 Bingham Somerset 219.78 sq mi
22 04497 Wytopitlock Aroostook 208.42 sq mi
23 04757 Mapleton Aroostook 208.37 sq mi
24 04261 Newry Oxford 208.00 sq mi
25 04735 Bridgewater Aroostook 204.74 sq mi
26 04739 Eagle Lake Aroostook 192.26 sq mi
27 04985 West Forks Somerset 192.17 sq mi
28 04217 Bethel Oxford 184.28 sq mi
29 04490 Topsfield Washington 178.87 sq mi
30 04780 Smyrna Mills Aroostook 172.08 sq mi
31 04743 Fort Kent Aroostook 166.20 sq mi
32 04774 Saint Francis Aroostook 158.54 sq mi
33 04736 Caribou Aroostook 157.35 sq mi
34 04413 Brookton Washington 155.83 sq mi
35 04983 Strong Franklin 153.16 sq mi
36 04443 Guilford Piscataquis 151.67 sq mi
37 04463 Milo Piscataquis 144.57 sq mi
38 04216 Andover Oxford 140.21 sq mi
39 04694 Baileyville Washington 132.75 sq mi
40 04785 Van Buren Aroostook 125.44 sq mi
41 04947 Kingfield Franklin 125.17 sq mi
42 04468 Old Town Penobscot 122.76 sq mi
43 04406 Abbot Piscataquis 122.66 sq mi
44 04938 Farmington Franklin 122.49 sq mi
45 04654 Machias Washington 120.78 sq mi
46 04426 Dover Foxcroft Piscataquis 119.92 sq mi
47 04623 Columbia Falls Washington 119.00 sq mi
48 04942 Harmony Somerset 118.44 sq mi
49 04418 Greenbush Penobscot 117.33 sq mi
50 04686 Wesley Washington 117.03 sq mi

Showing the top 50 of 426 ZIP codes in Maine that have this figure and meet the threshold above. 04441 ranks 1st at 981.36 sq mi, against 117.03 sq mi in 50th place.

Other rankings for Maine

Cite this page

zipcodes.pro. “Largest ZIP Codes in Maine by Land Area.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/rankings/me/largest-area

Underlying data is public domain or openly licensed — sources, vintages and licences.