03443
ZIP 03443 is Chesterfield, New Hampshire, in Cheshire County; area code 603; Eastern time.
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Where 03443 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 03443 into a pocket calculator and turn it upside down: EhhEO — not quite a word, sorry.
- ➕ As a number, 3,443 = 11 × 313. Its digits add up to 14, a total 1,416 other ZIP codes share.
- 💾In binary, the way a computer stores it:
110101110011 - 🏠 Its numerical neighbours: 03442 (Bennington, NH, 30 mi away) and 03444 (Dublin, NH, 20 mi away).
- 🔄 Backwards, 03443 becomes 34430 — and that is a real ZIP code: Dunnellon, FL, 1,105 miles away.
- 👥 13 other ZIP codes are made of exactly the same digits (04343, 30344, 30434, 33404, 33440, 34034, …). The farthest-flung twin is 34034 in APO AA, a military post office, 5,427 miles away.
- 🧭 Farther north than 82% of all ZIP codes, and farther east than 94%.
- 🎯1,365 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 03443 and you would come out at 42.87°S, 107.53°E — 881 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 15h 21m of daylight. Shortest: 9h 01m.
- 📏 At 10.7 square miles of land, 03443 is bigger than 28% of ZIP codes — room for about 8.2 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 581This ZIP581 |
|---|---|
| Households | 297This ZIP297 |
| Housing units | 297This ZIP297 |
| Median age | 64.8This ZIP64.8New Hampshire43.3US 38.9 |
| Median home value | $373,300This ZIP$373,300New Hampshire$402,500US $332,700 |
| Bachelor's degree or higher | 36.0%This ZIP36.0% |
| Population density | 54.1 / sq miThis ZIP54.1 / sq mi |
Business and tax activity
| Business establishments | 15This ZIP15 |
|---|---|
| Employees | 813This ZIP813 |
| Annual payroll | $44,100,000This ZIP$44,100,000 |
| Tax returns filed | 400This ZIP400 |
| Total adjusted gross income | $38,235,000This ZIP$38,235,000 |
Land area
| Land area | 10.74 sq miThis ZIP10.74 sq mi |
|---|---|
| Water area | 0.06 sq miThis ZIP0.06 sq mi |
ZIP codes near 03443
| ZIP | City | Distance |
|---|---|---|
03466 | West Chesterfield, NH | 2.3 mi |
03462 | Spofford, NH | 4.2 mi |
03451 | Hinsdale, NH | 4.6 mi |
05302 | Brattleboro, VT | 4.8 mi |
05303 | Brattleboro, VT | 4.8 mi |
05304 | Brattleboro, VT | 4.8 mi |
03441 | Ashuelot, NH | 6.2 mi |
03467 | Westmoreland, NH | 7.0 mi |
03469 | West Swanzey, NH | 7.7 mi |
05354 | Vernon, VT | 7.8 mi |
Find every ZIP code within 10 miles of 03443 →
Questions about this ZIP code
Where is ZIP code 03443?
03443 is in Chesterfield, New Hampshire, in Cheshire County, part of the Keene, NH micropolitan area. Its published point location is 42.8694, -72.4662.
What county is 03443 in?
03443 lies in Cheshire County.
What area code is 03443?
Chesterfield uses area code 603, from NANPA's telephone records.
What time zone is 03443 in?
03443 uses America/New_York.
How many people live in 03443?
About 581 people live in ZIP code 03443, in 297 households, at 54.1 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What ZIP codes are near 03443?
The closest are 03466 (2.3 mi), 03462 (4.2 mi), 03451 (4.6 mi), 05302 (4.8 mi) and 05303 (4.8 mi).
Is 03443 a PO Box ZIP code?
03443 is a standard ZIP code. A normal ZIP code with street delivery.
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Cite this page
zipcodes.pro. “03443 ZIP Code — Chesterfield, New Hampshire (Cheshire County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/03443
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/03443.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.