03870
ZIP 03870 is Rye, New Hampshire, in Rockingham County; area code 603; Eastern time.
- Type
- Standard
- Time zone
- America/New_York
- County
- Rockingham
- Metro area
- Boston-Cambridge-Newton, MA-NH
- Population
- 5,188
- Coordinates
- 43.0196, -70.7605
Weather right now
Asking the National Weather Service…
Where 03870 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 03870 into a pocket calculator and turn it upside down: OLBEO — not quite a word, sorry.
- ➕ As a number, 3,870 = 2 × 3 × 3 × 5 × 43. Its digits add up to 18, a total 2,332 other ZIP codes share.
- 💾In binary, the way a computer stores it:
111100011110 - 🏠 Its numerical neighbours: 03869 (Rollinsford, NH, 14 mi away) and 03871 (Rye Beach, NH, 3 mi away).
- 🔄 Backwards, 03870 becomes 07830 — and that is a real ZIP code: Califon, NJ, 261 miles away.
- 👥 27 other ZIP codes are made of exactly the same digits (00738, 00783, 03087, 03780, 07083, 07308, …). The farthest-flung twin is 78003 in Bandera, TX, 1,813 miles away.
- 🧭 Farther north than 83% of all ZIP codes, and farther east than 97%.
- 🎯1,451 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 03870 and you would come out at 43.02°S, 109.24°E — 846 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 15h 22m of daylight. Shortest: 9h 00m.
- 📏 At 12.1 square miles of land, 03870 is bigger than 30% of ZIP codes — room for about 9.1 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 5,188This ZIP5,188 |
|---|---|
| Households | 2,126This ZIP2,126 |
| Housing units | 2,719This ZIP2,719 |
| Median age | 54.9This ZIP54.9New Hampshire43.3US 38.9 |
| Median household income | $140,938This ZIP$140,938New Hampshire$99,031US $80,734 |
| Median home value | $990,700This ZIP$990,700New Hampshire$402,500US $332,700 |
| Median gross rent | $1,790This ZIP$1,790New Hampshire$1,491US $1,413 |
| Bachelor's degree or higher | 60.1%This ZIP60.1% |
| Mean commute | 29.2 minThis ZIP29.2 min |
| Population density | 430.5 / sq miThis ZIP430.5 / sq mi |
Business and tax activity
| Business establishments | 133This ZIP133 |
|---|---|
| Employees | 1,246This ZIP1,246 |
| Annual payroll | $64,918,000This ZIP$64,918,000 |
| Tax returns filed | 2,920This ZIP2,920 |
| Total adjusted gross income | $740,425,000This ZIP$740,425,000 |
Land area
| Land area | 12.05 sq miThis ZIP12.05 sq mi |
|---|---|
| Water area | 1.60 sq miThis ZIP1.60 sq mi |
ZIP codes near 03870
| ZIP | City | Distance |
|---|---|---|
03871 | Rye Beach, NH | 2.8 mi |
03802 | Portsmouth, NH | 3.6 mi |
03803 | Portsmouth, NH | 3.6 mi |
03804 | Portsmouth, NH | 3.6 mi |
03854 | New Castle, NH | 3.7 mi |
03862 | North Hampton, NH | 4.4 mi |
03801 | Portsmouth, NH | 4.4 mi |
03840 | Greenland, NH | 4.5 mi |
03904 | Kittery, ME | 6.4 mi |
03842 | Hampton, NH | 6.7 mi |
Find every ZIP code within 10 miles of 03870 →
Questions about this ZIP code
Where is ZIP code 03870?
03870 is in Rye, New Hampshire, in Rockingham County, part of the Boston-Cambridge-Newton, MA-NH metropolitan area. Its published point location is 43.0196, -70.7605.
What county is 03870 in?
03870 lies in Rockingham County.
What area code is 03870?
Rye uses area code 603, from NANPA's telephone records.
What time zone is 03870 in?
03870 uses America/New_York.
How many people live in 03870?
About 5,188 people live in ZIP code 03870, in 2,126 households, at 430.5 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 03870?
$140,938 a year, against $99,031 across New Hampshire.
What ZIP codes are near 03870?
The closest are 03871 (2.8 mi), 03802 (3.6 mi), 03803 (3.6 mi), 03804 (3.6 mi) and 03854 (3.7 mi).
Is 03870 a PO Box ZIP code?
03870 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “03870 ZIP Code — Rye, New Hampshire (Rockingham County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/03870
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/03870.json Underlying data is public domain or openly licensed — sources, vintages and licences.