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/LOWEST-AVERAGE-INCOME

ZIP Codes With the Lowest Average Income in Maine

What this measures. Total adjusted gross income divided by tax returns filed, lowest first. ZIP codes with fewer than 200 returns are excluded: the IRS suppresses small cells and the remainder swing too wildly to rank. Source: IRS Statistics of Income, ZIP code data, data release 2026-10-12.

# ZIP City County Average AGI per return
1 04942 Harmony Somerset $42,083
2 04430 East Millinocket Penobscot $43,696
3 04453 Lagrange Penobscot $43,917
4 04787 Westfield Aroostook $43,965
5 04622 Cherryfield Washington $44,408
6 04459 Mattawamkeag Aroostook $44,483
7 04257 Mexico Oxford $45,092
8 04487 Springfield Penobscot $45,511
9 04658 Milbridge Washington $45,697
10 04463 Milo Piscataquis $45,801
11 04464 Monson Piscataquis $45,863
12 04760 Monticello Aroostook $45,989
13 04776 Sherman Aroostook $46,185
14 04254 Livermore Falls Androscoggin $46,240
15 04750 Limestone Aroostook $46,405
16 04471 Orient Aroostook $46,438
17 04929 Detroit Somerset $46,570
18 04643 Harrington Washington $46,863
19 04763 Oakfield Aroostook $47,128
20 04930 Dexter Penobscot $47,486
21 04984 Temple Franklin $47,631
22 04626 Cutler Washington $47,728
23 04292 Sumner Oxford $47,854
24 04735 Bridgewater Aroostook $48,632
25 04460 Medway Penobscot $48,688
26 04920 Bingham Somerset $48,849
27 04668 Princeton Washington $48,853
28 04680 Steuben Washington $48,867
29 04923 Cambridge Somerset $48,960
30 04462 Millinocket Piscataquis $49,184
31 04418 Greenbush Penobscot $49,233
32 04780 Smyrna Mills Aroostook $49,260
33 04911 Anson Somerset $49,283
34 04448 Howland Penobscot $49,569
35 04786 Washburn Aroostook $49,695
36 04774 Saint Francis Aroostook $49,720
37 04666 Pembroke Washington $49,779
38 04410 Bradford Penobscot $49,852
39 04691 Whiting Washington $50,005
40 04221 Canton Oxford $50,207
41 04747 Island Falls Aroostook $50,371
42 04765 Patten Penobscot $50,600
43 04424 Danforth Washington $50,671
44 04912 Athens Somerset $50,690
45 04667 Perry Washington $50,757
46 04628 Dennysville Washington $50,917
47 04606 Addison Washington $51,017
48 04649 Jonesport Washington $51,034
49 04756 Madawaska Aroostook $51,061
50 04943 Hartland Somerset $51,077

Showing the top 50 of 348 ZIP codes in Maine that have this figure and meet the threshold above. 04942 ranks 1st at $42,083, against $51,077 in 50th place.

Other rankings for Maine

Cite this page

zipcodes.pro. “ZIP Codes With the Lowest Average Income in Maine.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/rankings/me/lowest-average-income

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