03855
ZIP 03855 is New Durham, New Hampshire, in Strafford County; area code 603; Eastern time.
- Type
- Standard
- Time zone
- America/New_York
- County
- Strafford
- Metro area
- Boston-Cambridge-Newton, MA-NH
- Population
- 2,748
- Coordinates
- 43.4637, -71.1522
Weather right now
Asking the National Weather Service…
Where 03855 is
Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.
- 🔢 Type 03855 into a pocket calculator and turn it upside down: SSBEO — not quite a word, sorry.
- ➕ As a number, 3,855 = 3 × 5 × 257. Its digits add up to 21, a total 2,594 other ZIP codes share.
- 💾In binary, the way a computer stores it:
111100001111 - 🏠 Its numerical neighbours: 03854 (New Castle, NH, 35 mi away) and 03856 (Newfields, NH, 31 mi away).
- 🔄 Backwards, 03855 becomes 55830, which is not a ZIP code at all.
- 👥 38 other ZIP codes are made of exactly the same digits (03585, 05358, 05853, 08535, 08553, 30558, …). The farthest-flung twin is 85350 in Somerton, AZ, 2,456 miles away.
- 🧭 Farther north than 85% of all ZIP codes, and farther east than 96%.
- 🎯1,431 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 03855 and you would come out at 43.46°S, 108.85°E — 882 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 15h 25m of daylight. Shortest: 8h 57m.
- 📏 At 41.2 square miles of land, 03855 is bigger than 54% of ZIP codes — room for about 31 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 2,748This ZIP2,748 |
|---|---|
| Households | 1,091This ZIP1,091 |
| Housing units | 1,639This ZIP1,639 |
| Median age | 46.5This ZIP46.5New Hampshire43.3US 38.9 |
| Median household income | $100,194This ZIP$100,194New Hampshire$99,031US $80,734 |
| Median home value | $339,400This ZIP$339,400New Hampshire$402,500US $332,700 |
| Median gross rent | $1,417This ZIP$1,417New Hampshire$1,491US $1,413 |
| Bachelor's degree or higher | 34.7%This ZIP34.7% |
| Mean commute | 34.7 minThis ZIP34.7 min |
| Population density | 66.7 / sq miThis ZIP66.7 / sq mi |
Business and tax activity
| Business establishments | 28This ZIP28 |
|---|---|
| Employees | 146This ZIP146 |
| Annual payroll | $8,528,000This ZIP$8,528,000 |
| Tax returns filed | 1,510This ZIP1,510 |
| Total adjusted gross income | $141,700,000This ZIP$141,700,000 |
Land area
| Land area | 41.20 sq miThis ZIP41.20 sq mi |
|---|---|
| Water area | 2.63 sq miThis ZIP2.63 sq mi |
ZIP codes near 03855
| ZIP | City | Distance |
|---|---|---|
03809 | Alton, NH | 2.4 mi |
03887 | Union, NH | 4.3 mi |
03851 | Milton, NH | 6.6 mi |
03810 | Alton Bay, NH | 7.9 mi |
03835 | Farmington, NH | 8.1 mi |
03225 | Center Barnstead, NH | 8.2 mi |
03852 | Milton Mills, NH | 8.6 mi |
03872 | Sanbornville, NH | 9.2 mi |
03896 | Wolfeboro Falls, NH | 9.3 mi |
03837 | Gilmanton Iron Works, NH | 9.7 mi |
Find every ZIP code within 10 miles of 03855 →
Questions about this ZIP code
Where is ZIP code 03855?
03855 is in New Durham, New Hampshire, in Strafford County, part of the Boston-Cambridge-Newton, MA-NH metropolitan area. Its published point location is 43.4637, -71.1522.
What county is 03855 in?
03855 lies in Strafford County.
What area code is 03855?
New Durham uses area code 603, from NANPA's telephone records.
What time zone is 03855 in?
03855 uses America/New_York.
How many people live in 03855?
About 2,748 people live in ZIP code 03855, in 1,091 households, at 66.7 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What is the median household income in 03855?
$100,194 a year, against $99,031 across New Hampshire.
What ZIP codes are near 03855?
The closest are 03809 (2.4 mi), 03887 (4.3 mi), 03851 (6.6 mi), 03810 (7.9 mi) and 03835 (8.1 mi).
Is 03855 a PO Box ZIP code?
03855 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “03855 ZIP Code — New Durham, New Hampshire (Strafford County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/03855
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/03855.json Underlying data is public domain or openly licensed — sources, vintages and licences.