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/NH/LOWEST-AVERAGE-INCOME

ZIP Codes With the Lowest Average Income in New Hampshire

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 03590 North Stratford Coos $49,450
2 03570 Berlin Coos $52,112
3 03279 Warren Grafton $54,403
4 03441 Ashuelot Cheshire $56,485
5 03582 Groveton Coos $57,036
6 03235 Franklin Merrimack $57,708
7 03103 Manchester Hillsborough $57,977
8 03785 Woodsville Grafton $59,076
9 03743 Claremont Sullivan $59,205
10 03451 Hinsdale Cheshire $59,347
11 03465 Troy Cheshire $61,923
12 03609 North Walpole Cheshire $62,275
13 03060 Nashua Hillsborough $62,758
14 03243 Hill Merrimack $62,873
15 03603 Charlestown Sullivan $63,184
16 03470 Winchester Cheshire $63,646
17 03882 Effingham Carroll $63,681
18 03774 North Haverhill Grafton $64,176
19 03102 Manchester Hillsborough $64,510
20 03240 Grafton Grafton $64,560
21 03598 Whitefield Coos $64,615
22 03588 Milan Coos $64,816
23 03276 Tilton Merrimack $65,197
24 03230 Danbury Merrimack $66,001
25 03752 Goshen Sullivan $66,137
26 03456 Marlow Cheshire $66,890
27 03266 Rumney Grafton $67,054
28 03867 Rochester Strafford $67,363
29 03890 West Ossipee Carroll $67,729
30 03263 Pittsfield Merrimack $67,802
31 03835 Farmington Strafford $68,061
32 03878 Somersworth Strafford $68,769
33 03868 Rochester Strafford $69,112
34 03740 Bath Grafton $69,362
35 03218 Barnstead Belknap $69,412
36 03886 Tamworth Carroll $69,466
37 03839 Rochester Strafford $70,505
38 03442 Bennington Hillsborough $70,568
39 03576 Colebrook Coos $71,001
40 03583 Jefferson Coos $71,230
41 03812 Bartlett Carroll $71,281
42 03601 Acworth Sullivan $71,646
43 03852 Milton Mills Strafford $71,858
44 03887 Union Strafford $72,179
45 03448 Gilsum Cheshire $72,185
46 03282 Wentworth Grafton $72,338
47 03262 North Woodstock Grafton $72,366
48 03765 Haverhill Grafton $72,696
49 03244 Hillsborough Hillsborough $72,988
50 03584 Lancaster Coos $73,184

Showing the top 50 of 225 ZIP codes in New Hampshire that have this figure and meet the threshold above. 03590 ranks 1st at $49,450, against $73,184 in 50th place.

Other rankings for New Hampshire

Cite this page

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

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