03240
ZIP 03240 is Grafton, New Hampshire, in Grafton County; area code 603; Eastern time.
- Type
- Standard
- Time zone
- America/New_York
- County
- Grafton
- Metro area
- Lebanon-Claremont, NH-VT
- Population
- 1,354
- Coordinates
- 43.5747, -71.9519
Weather right now
Asking the National Weather Service…
Where 03240 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 03240 into a pocket calculator and turn it upside down: OhZEO — not quite a word, sorry.
- ➕ As a number, 3,240 = 2 × 2 × 2 × 3 × 3 × 3 × 3 × 5. Its digits add up to 9, a total 375 other ZIP codes share.
- 💾In binary, the way a computer stores it:
110010101000 - 🏠 Its numerical neighbours: 03238 (Glencliff, NH, 28 mi away) and 03241 (Hebron, NH, 11 mi away).
- 🔄 Backwards, 03240 becomes 04230 — and that is a real ZIP code: East Poland, ME, 88 miles away.
- 👥 27 other ZIP codes are made of exactly the same digits (02043, 02304, 02340, 03042, 04032, 04230, …). The farthest-flung twin is 34020 in APO AA, a military post office, 2,436 miles away.
- 🧭 Farther north than 86% of all ZIP codes, and farther east than 95%.
- 🎯1,392 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 03240 and you would come out at 43.57°S, 108.05°E — 908 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 15h 26m of daylight. Shortest: 8h 56m.
- 📏 At 41.5 square miles of land, 03240 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 | 1,354This ZIP1,354 |
|---|---|
| Households | 534This ZIP534 |
| Housing units | 689This ZIP689 |
| Median age | 43.1This ZIP43.1New Hampshire43.3US 38.9 |
| Median household income | $81,563This ZIP$81,563New Hampshire$99,031US $80,734 |
| Median home value | $267,300This ZIP$267,300New Hampshire$402,500US $332,700 |
| Median gross rent | $1,243This ZIP$1,243New Hampshire$1,491US $1,413 |
| Bachelor's degree or higher | 24.7%This ZIP24.7% |
| Mean commute | 43.2 minThis ZIP43.2 min |
| Population density | 32.6 / sq miThis ZIP32.6 / sq mi |
Business and tax activity
| Business establishments | 9This ZIP9 |
|---|---|
| Employees | 13This ZIP13 |
| Annual payroll | $581,000This ZIP$581,000 |
| Tax returns filed | 680This ZIP680 |
| Total adjusted gross income | $43,901,000This ZIP$43,901,000 |
Land area
| Land area | 41.47 sq miThis ZIP41.47 sq mi |
|---|---|
| Water area | 0.93 sq miThis ZIP0.93 sq mi |
ZIP codes near 03240
| ZIP | City | Distance |
|---|---|---|
03230 | Danbury, NH | 5.4 mi |
03749 | Enfield Center, NH | 6.7 mi |
03741 | Canaan, NH | 7.6 mi |
03284 | Springfield, NH | 7.7 mi |
03748 | Enfield, NH | 8.6 mi |
03222 | Bristol, NH | 9.0 mi |
03287 | Wilmot, NH | 9.2 mi |
03243 | Hill, NH | 9.7 mi |
03233 | Elkins, NH | 10.5 mi |
03753 | Grantham, NH | 10.7 mi |
Find every ZIP code within 10 miles of 03240 →
Questions about this ZIP code
Where is ZIP code 03240?
03240 is in Grafton, New Hampshire, in Grafton County, part of the Lebanon-Claremont, NH-VT micropolitan area. Its published point location is 43.5747, -71.9519.
What county is 03240 in?
03240 lies in Grafton County.
What area code is 03240?
Grafton uses area code 603, from NANPA's telephone records.
What time zone is 03240 in?
03240 uses America/New_York.
How many people live in 03240?
About 1,354 people live in ZIP code 03240, in 534 households, at 32.6 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 03240?
$81,563 a year, against $99,031 across New Hampshire.
What ZIP codes are near 03240?
The closest are 03230 (5.4 mi), 03749 (6.7 mi), 03741 (7.6 mi), 03284 (7.7 mi) and 03748 (8.6 mi).
Is 03240 a PO Box ZIP code?
03240 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “03240 ZIP Code — Grafton, New Hampshire (Grafton County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/03240
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/03240.json Underlying data is public domain or openly licensed — sources, vintages and licences.