87421
ZIP 87421 is Waterflow, New Mexico, in San Juan County; area code 505; Mountain time.
- Type
- Standard
- Time zone
- America/Denver
- County
- San Juan
- Metro area
- Farmington, NM
- Population
- 1,468
- Coordinates
- 36.7772, -108.5272
Weather right now
Asking the National Weather Service…
Where 87421 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 87421 into a pocket calculator and turn it upside down: IZhLB — not quite a word, sorry.
- ➕ 87421 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 22, a total 2,607 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10101010101111101 - 🏠 Its numerical neighbours: 87420 (Shiprock, NM, 23 mi away) and 87455 (Newcomb, NM, 36 mi away).
- 🔄 Backwards, 87421 becomes 12478, which is not a ZIP code at all.
- 👥 49 other ZIP codes are made of exactly the same digits (12487, 12748, 12784, 12847, 12874, 14728, …). The farthest-flung twin is 12874 in Silver Bay, NY, 1,891 miles away.
- 🧭 Farther south than 65% of all ZIP codes, and farther west than 85%.
- 🎯579 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 87421 and you would come out at 36.78°S, 71.47°E — 871 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 14h 41m of daylight. Shortest: 9h 38m.
- 📏 At 32.7 square miles of land, 87421 is bigger than 48% of ZIP codes — room for about 25 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 1,468This ZIP1,468 |
|---|---|
| Households | 466This ZIP466 |
| Housing units | 633This ZIP633 |
| Median age | 36.8This ZIP36.8New Mexico39.4US 38.9 |
| Median household income | $51,029This ZIP$51,029New Mexico$64,059US $80,734 |
| Median home value | $122,800This ZIP$122,800New Mexico$248,100US $332,700 |
| Median gross rent | $1,616This ZIP$1,616New Mexico$1,067US $1,413 |
| Bachelor's degree or higher | 8.0%This ZIP8.0% |
| Mean commute | 28.2 minThis ZIP28.2 min |
| Population density | 44.8 / sq miThis ZIP44.8 / sq mi |
Business and tax activity
| Business establishments | 23This ZIP23 |
|---|---|
| Employees | 429This ZIP429 |
| Annual payroll | $37,874,000This ZIP$37,874,000 |
| Tax returns filed | 910This ZIP910 |
| Total adjusted gross income | $39,314,000This ZIP$39,314,000 |
Land area
| Land area | 32.73 sq miThis ZIP32.73 sq mi |
|---|---|
| Water area | 0.22 sq miThis ZIP0.22 sq mi |
Other place names in 87421
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 87421
| ZIP | City | Distance |
|---|---|---|
87417 | Kirtland, NM | 9.9 mi |
87416 | Fruitland, NM | 13.9 mi |
87401 | Farmington, NM | 19.2 mi |
87402 | Farmington, NM | 20.8 mi |
87420 | Shiprock, NM | 23.4 mi |
87415 | Flora Vista, NM | 24.0 mi |
87418 | La Plata, NM | 24.0 mi |
81334 | Towaoc, CO | 25.9 mi |
81329 | Marvel, CO | 31.1 mi |
87461 | Sanostee, NM | 31.5 mi |
Find every ZIP code within 10 miles of 87421 →
Questions about this ZIP code
Where is ZIP code 87421?
87421 is in Waterflow, New Mexico, in San Juan County, part of the Farmington, NM metropolitan area. Its published point location is 36.7772, -108.5272.
What county is 87421 in?
87421 lies in San Juan County.
What area code is 87421?
Waterflow uses area code 505, from NANPA's telephone records.
What time zone is 87421 in?
87421 uses America/Denver.
How many people live in 87421?
About 1,468 people live in ZIP code 87421, in 466 households, at 44.8 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 87421?
$51,029 a year, against $64,059 across New Mexico.
What ZIP codes are near 87421?
The closest are 87417 (9.9 mi), 87416 (13.9 mi), 87401 (19.2 mi), 87402 (20.8 mi) and 87420 (23.4 mi).
Is 87421 a PO Box ZIP code?
87421 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “87421 ZIP Code — Waterflow, New Mexico (San Juan County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/87421
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/87421.json Underlying data is public domain or openly licensed — sources, vintages and licences.