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/YOUNGEST

ZIP Codes With the Youngest Population in New Hampshire

What this measures. Median age of residents, lowest first. Source: Census American Community Survey, data release 2026-10-12.

# ZIP City County Median age
1 03824 Durham Strafford 20.8
2 03890 West Ossipee Carroll 22.3
3 03755 Hanover Grafton 23.5
4 03264 Plymouth Grafton 26.3
5 03441 Ashuelot Cheshire 29.2
6 03601 Acworth Sullivan 29.5
7 03242 Henniker Merrimack 31.1
8 03817 Chocorua Carroll 33.0
9 03101 Manchester Hillsborough 33.8
10 03466 West Chesterfield Cheshire 34.3
11 03461 Rindge Cheshire 35.0
12 03282 Wentworth Grafton 36.1
13 03060 Nashua Hillsborough 36.2
14 03826 East Hampstead Rockingham 36.6
15 03055 Milford Hillsborough 36.8
16 03102 Manchester Hillsborough 36.8
17 03071 New Ipswich Hillsborough 36.9
18 03820 Dover Strafford 36.9
19 03823 Madbury Strafford 37.7
20 03104 Manchester Hillsborough 37.8
21 03561 Littleton Grafton 38.0
22 03869 Rollinsford Strafford 38.2
23 03103 Manchester Hillsborough 38.3
24 03839 Rochester Strafford 38.3
25 03431 Keene Cheshire 38.4
26 03878 Somersworth Strafford 38.5
27 03766 Lebanon Grafton 38.7
28 03825 Barrington Strafford 38.7
29 03070 New Boston Hillsborough 38.8
30 03290 Nottingham Rockingham 38.8
31 03781 Plainfield Sullivan 38.8
32 03816 Center Tuftonboro Carroll 38.8
33 03063 Nashua Hillsborough 39.3
34 03245 Holderness Grafton 39.4
35 03770 Meriden Sullivan 40.1
36 03865 Plaistow Rockingham 40.1
37 03465 Troy Cheshire 40.2
38 03038 Derry Rockingham 40.3
39 03275 Suncook Merrimack 40.4
40 03301 Concord Merrimack 40.4
41 03784 West Lebanon Grafton 40.4
42 03750 Etna Grafton 40.7
43 03873 Sandown Rockingham 40.8
44 03087 Windham Rockingham 41.1
45 03033 Brookline Hillsborough 41.2
46 03814 Center Ossipee Carroll 41.2
47 03857 Newmarket Rockingham 41.2
48 03106 Hooksett Merrimack 41.3
49 03054 Merrimack Hillsborough 41.5
50 03076 Pelham Hillsborough 41.5

Showing the top 50 of 244 ZIP codes in New Hampshire that have this figure . 03824 ranks 1st at 20.8, against 41.5 in 50th place.

Other rankings for New Hampshire

Cite this page

zipcodes.pro. “ZIP Codes With the Youngest Population in New Hampshire.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/rankings/nh/youngest

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