03307
ZIP 03307 is Loudon, New Hampshire, in Merrimack County; area code 603; Eastern time.
- Type
- Standard
- Time zone
- America/New_York
- County
- Merrimack
- Metro area
- Concord, NH
- Population
- 5,724
- Coordinates
- 43.3340, -71.4467
Weather right now
Asking the National Weather Service…
Where 03307 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 03307 into a pocket calculator and turn it upside down: LOEEO — not quite a word, sorry.
- ➕ 03307 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 13, a total 1,179 other ZIP codes share.
- 💾In binary, the way a computer stores it:
110011101011 - 🏠 Its numerical neighbours: 03305 (Concord, NH, 9 mi away) and 03431 (Keene, NH, 50 mi away).
- 🔄 Backwards, 03307 becomes 70330, which is not a ZIP code at all.
- 👥 15 other ZIP codes are made of exactly the same digits (00733, 03037, 03073, 07033, 07303, 30037, …). The farthest-flung twin is 00733 in Ponce, PR, 1,772 miles away.
- 🧭 Farther north than 85% of all ZIP codes, and farther east than 95%.
- 🎯1,417 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 03307 and you would come out at 43.33°S, 108.55°E — 881 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 15h 24m of daylight. Shortest: 8h 58m.
- 📏 At 47.0 square miles of land, 03307 is bigger than 58% of ZIP codes — room for about 36 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 5,724This ZIP5,724 |
|---|---|
| Households | 2,248This ZIP2,248 |
| Housing units | 2,352This ZIP2,352 |
| Median age | 49.4This ZIP49.4New Hampshire43.3US 38.9 |
| Median household income | $107,226This ZIP$107,226New Hampshire$99,031US $80,734 |
| Median home value | $365,400This ZIP$365,400New Hampshire$402,500US $332,700 |
| Median gross rent | $1,321This ZIP$1,321New Hampshire$1,491US $1,413 |
| Bachelor's degree or higher | 29.3%This ZIP29.3% |
| Mean commute | 30.4 minThis ZIP30.4 min |
| Population density | 121.9 / sq miThis ZIP121.9 / sq mi |
Business and tax activity
| Business establishments | 97This ZIP97 |
|---|---|
| Employees | 602This ZIP602 |
| Annual payroll | $35,302,000This ZIP$35,302,000 |
| Tax returns filed | 3,070This ZIP3,070 |
| Total adjusted gross income | $251,786,000This ZIP$251,786,000 |
Land area
| Land area | 46.96 sq miThis ZIP46.96 sq mi |
|---|---|
| Water area | 0.60 sq miThis ZIP0.60 sq mi |
Other place names in 03307
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 03307
| ZIP | City | Distance |
|---|---|---|
03258 | Chichester, NH | 5.1 mi |
03224 | Canterbury, NH | 5.2 mi |
03237 | Gilmanton, NH | 7.4 mi |
03263 | Pittsfield, NH | 7.6 mi |
03837 | Gilmanton Iron Works, NH | 8.2 mi |
03301 | Concord, NH | 8.6 mi |
03218 | Barnstead, NH | 8.7 mi |
03305 | Concord, NH | 9.1 mi |
03276 | Tilton, NH | 9.3 mi |
03220 | Belmont, NH | 9.9 mi |
Find every ZIP code within 10 miles of 03307 →
Questions about this ZIP code
Where is ZIP code 03307?
03307 is in Loudon, New Hampshire, in Merrimack County, part of the Concord, NH micropolitan area. Its published point location is 43.3340, -71.4467.
What county is 03307 in?
03307 lies in Merrimack County.
What area code is 03307?
Loudon uses area code 603, from NANPA's telephone records.
What time zone is 03307 in?
03307 uses America/New_York.
How many people live in 03307?
About 5,724 people live in ZIP code 03307, in 2,248 households, at 121.9 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 03307?
$107,226 a year, against $99,031 across New Hampshire.
What ZIP codes are near 03307?
The closest are 03258 (5.1 mi), 03224 (5.2 mi), 03237 (7.4 mi), 03263 (7.6 mi) and 03837 (8.2 mi).
Is 03307 a PO Box ZIP code?
03307 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “03307 ZIP Code — Loudon, New Hampshire (Merrimack County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/03307
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/03307.json Underlying data is public domain or openly licensed — sources, vintages and licences.