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Where 81321 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 81321 into a pocket calculator and turn it upside down: IZEIB — not quite a word, sorry.
- ➕ As a number, 81,321 = 3 × 27107. Its digits add up to 15, a total 1,657 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10011110110101001 - 🏠 Its numerical neighbours: 81320 (Cahone, CO, 28 mi away) and 81323 (Dolores, CO, 43 mi away).
- 🔄 Backwards, 81321 becomes 12318, which is not a ZIP code at all.
- 👥 23 other ZIP codes are made of exactly the same digits (11238, 12138, 12183, 12831, 13218, 13812, …). The farthest-flung twin is 12138 in Petersburg, NY, 1,894 miles away.
- 🧭 Farther south than 63% of all ZIP codes, and farther west than 85%.
- 🎯575 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 81321 and you would come out at 37.31°S, 71.27°E — 833 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 14h 44m of daylight. Shortest: 9h 35m.
- 📏 At 419.6 square miles of land, 81321 is bigger than 97% of ZIP codes — room for about 319 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 14,236This ZIP14,236 |
|---|---|
| Households | 5,785This ZIP5,785 |
| Housing units | 6,265This ZIP6,265 |
| Median age | 41.8This ZIP41.8Colorado37.7US 38.9 |
| Median household income | $59,506This ZIP$59,506Colorado$95,470US $80,734 |
| Median home value | $289,000This ZIP$289,000Colorado$539,400US $332,700 |
| Median gross rent | $969This ZIP$969Colorado$1,761US $1,413 |
| Bachelor's degree or higher | 26.4%This ZIP26.4% |
| Mean commute | 16.2 minThis ZIP16.2 min |
| Population density | 33.9 / sq miThis ZIP33.9 / sq mi |
Business and tax activity
| Business establishments | 519This ZIP519 |
|---|---|
| Employees | 4,937This ZIP4,937 |
| Annual payroll | $225,045,000This ZIP$225,045,000 |
| Tax returns filed | 6,810This ZIP6,810 |
| Total adjusted gross income | $421,706,000This ZIP$421,706,000 |
Land area
| Land area | 419.60 sq miThis ZIP419.60 sq mi |
|---|---|
| Water area | 0.44 sq miThis ZIP0.44 sq mi |
Other place names in 81321
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 81321
| ZIP | City | Distance |
|---|---|---|
81331 | Pleasant View, CO | 13.2 mi |
81334 | Towaoc, CO | 13.3 mi |
81327 | Lewis, CO | 14.7 mi |
81330 | Mesa Verde National Park, CO | 15.1 mi |
81335 | Yellow Jacket, CO | 16.0 mi |
81328 | Mancos, CO | 22.4 mi |
84510 | Aneth, UT | 25.8 mi |
81324 | Dove Creek, CO | 27.3 mi |
81320 | Cahone, CO | 28.1 mi |
84534 | Montezuma Creek, UT | 30.0 mi |
Find every ZIP code within 10 miles of 81321 →
Questions about this ZIP code
Where is ZIP code 81321?
81321 is in Cortez, Colorado, in Montezuma County. Its published point location is 37.3130, -108.7345.
What county is 81321 in?
81321 lies in Montezuma County.
What area code is 81321?
Cortez uses area code 970, from NANPA's telephone records.
What time zone is 81321 in?
81321 uses America/Denver.
How many people live in 81321?
About 14,236 people live in ZIP code 81321, in 5,785 households, at 33.9 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 81321?
$59,506 a year, against $95,470 across Colorado.
What ZIP codes are near 81321?
The closest are 81331 (13.2 mi), 81334 (13.3 mi), 81327 (14.7 mi), 81330 (15.1 mi) and 81335 (16 mi).
Is 81321 a PO Box ZIP code?
81321 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “81321 ZIP Code — Cortez, Colorado (Montezuma County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/81321
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/81321.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.