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Where 87730 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 87730 into a pocket calculator and turn it upside down: OELLB — not quite a word, sorry.
- ➕ As a number, 87,730 = 2 × 5 × 31 × 283. Its digits add up to 25, a total 2,242 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10101011010110010 - 🏠 Its numerical neighbours: 87729 (Miami, NM, 35 mi away) and 87731 (Montezuma, NM, 71 mi away).
- 🔄 Backwards, 87730 becomes 03778, which is not a ZIP code at all.
- 👥 25 other ZIP codes are made of exactly the same digits (07738, 07837, 37078, 37087, 37708, 37807, …). The farthest-flung twin is 07738 in Lincroft, NJ, 1,651 miles away.
- 🧭 Farther south than 69% of all ZIP codes, and farther west than 82%.
- 🎯401 miles southwest of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 87730 and you would come out at 36.11°S, 75.77°E — 957 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 14h 37m of daylight. Shortest: 9h 42m.
- 📏 At 307.6 square miles of land, 87730 is bigger than 95% of ZIP codes — room for about 234 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 60This ZIP60 |
|---|---|
| Households | 14This ZIP14 |
| Housing units | 15This ZIP15 |
| Median age | 18.5This ZIP18.5New Mexico39.4US 38.9 |
| Median household income | $49,375This ZIP$49,375New Mexico$64,059US $80,734 |
| Median home value | $56,300This ZIP$56,300New Mexico$248,100US $332,700 |
| Bachelor's degree or higher | 16.0%This ZIP16.0% |
| Population density | 0.2 / sq miThis ZIP0.2 / sq mi |
Land area
| Land area | 307.57 sq miThis ZIP307.57 sq mi |
|---|---|
| Water area | 0.12 sq miThis ZIP0.12 sq mi |
ZIP codes near 87730
| ZIP | City | Distance |
|---|---|---|
87743 | Roy, NM | 15.0 mi |
87747 | Springer, NM | 20.5 mi |
88422 | Gladstone, NM | 21.1 mi |
87752 | Wagon Mound, NM | 25.1 mi |
87746 | Solano, NM | 32.1 mi |
87733 | Mosquero, NM | 32.4 mi |
87729 | Miami, NM | 35.3 mi |
88424 | Grenville, NM | 39.0 mi |
87728 | Maxwell, NM | 39.7 mi |
88439 | Trementina, NM | 43.3 mi |
Find every ZIP code within 10 miles of 87730 →
Questions about this ZIP code
Where is ZIP code 87730?
87730 is in Mills, New Mexico, in Harding County. Its published point location is 36.1088, -104.2315.
What county is 87730 in?
87730 lies in Harding County.
What area code is 87730?
Mills uses area code 575, from NANPA's telephone records.
What time zone is 87730 in?
87730 uses America/Denver.
How many people live in 87730?
About 60 people live in ZIP code 87730, in 14 households, at 0.2 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 87730?
$49,375 a year, against $64,059 across New Mexico.
What ZIP codes are near 87730?
The closest are 87743 (15 mi), 87747 (20.5 mi), 88422 (21.1 mi), 87752 (25.1 mi) and 87746 (32.1 mi).
Is 87730 a PO Box ZIP code?
87730 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “87730 ZIP Code — Mills, New Mexico (Harding County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/87730
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/87730.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.