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Where 03445 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 03445 into a pocket calculator and turn it upside down: ShhEO — not quite a word, sorry.
- ➕ As a number, 3,445 = 5 × 13 × 53. Its digits add up to 16, a total 1,922 other ZIP codes share.
- 💾In binary, the way a computer stores it:
110101110101 - 🏠 Its numerical neighbours: 03444 (Dublin, NH, 12 mi away) and 03446 (Swanzey, NH, 12 mi away).
- 🔄 Backwards, 03445 becomes 54430 — and that is a real ZIP code: Elton, WI, 839 miles away.
- 👥 36 other ZIP codes are made of exactly the same digits (04345, 04354, 04435, 04453, 04543, 05344, …). The farthest-flung twin is 34045 in APO AA, a military post office, 2,395 miles away.
- 🧭 Farther north than 83% of all ZIP codes, and farther east than 94%.
- 🎯1,378 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 03445 and you would come out at 43.02°S, 107.79°E — 883 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 15h 22m of daylight. Shortest: 9h 00m.
- 📏 At 19.5 square miles of land, 03445 is bigger than 37% of ZIP codes — room for about 15 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 687This ZIP687 |
|---|---|
| Households | 266This ZIP266 |
| Housing units | 288This ZIP288 |
| Median age | 46.6This ZIP46.6New Hampshire43.3US 38.9 |
| Median household income | $106,667This ZIP$106,667New Hampshire$99,031US $80,734 |
| Median home value | $236,500This ZIP$236,500New Hampshire$402,500US $332,700 |
| Median gross rent | $1,225This ZIP$1,225New Hampshire$1,491US $1,413 |
| Bachelor's degree or higher | 28.5%This ZIP28.5% |
| Mean commute | 32.1 minThis ZIP32.1 min |
| Population density | 35.2 / sq miThis ZIP35.2 / sq mi |
Business and tax activity
| Business establishments | 8This ZIP8 |
|---|---|
| Employees | 25This ZIP25 |
| Annual payroll | $1,026,000This ZIP$1,026,000 |
| Tax returns filed | 380This ZIP380 |
| Total adjusted gross income | $30,439,000This ZIP$30,439,000 |
Land area
| Land area | 19.50 sq miThis ZIP19.50 sq mi |
|---|---|
| Water area | 0.19 sq miThis ZIP0.19 sq mi |
ZIP codes near 03445
| ZIP | City | Distance |
|---|---|---|
03448 | Gilsum, NH | 2.8 mi |
03457 | Nelson, NH | 4.9 mi |
03431 | Keene, NH | 5.7 mi |
03464 | Stoddard, NH | 6.7 mi |
03435 | Keene, NH | 6.8 mi |
03456 | Marlow, NH | 8.2 mi |
03455 | Marlborough, NH | 8.5 mi |
03450 | Harrisville, NH | 8.9 mi |
03608 | Walpole, NH | 9.9 mi |
03602 | Alstead, NH | 10.7 mi |
Find every ZIP code within 10 miles of 03445 →
Questions about this ZIP code
Where is ZIP code 03445?
03445 is in Sullivan, New Hampshire, in Cheshire County, part of the Keene, NH micropolitan area. Its published point location is 43.0206, -72.2144.
What county is 03445 in?
03445 lies in Cheshire County.
What area code is 03445?
Sullivan uses area code 603, from NANPA's telephone records.
What time zone is 03445 in?
03445 uses America/New_York.
How many people live in 03445?
About 687 people live in ZIP code 03445, in 266 households, at 35.2 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 03445?
$106,667 a year, against $99,031 across New Hampshire.
What ZIP codes are near 03445?
The closest are 03448 (2.8 mi), 03457 (4.9 mi), 03431 (5.7 mi), 03464 (6.7 mi) and 03435 (6.8 mi).
Is 03445 a PO Box ZIP code?
03445 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “03445 ZIP Code — Sullivan, New Hampshire (Cheshire County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/03445
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/03445.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.