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Where 81131 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 81131 into a pocket calculator and turn it upside down: IEIIB — not quite a word, sorry.
- ➕ 81131 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 14, a total 1,416 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10011110011101011 - 🏠 Its numerical neighbours: 81130 (Creede, CO, 78 mi away) and 81132 (Del Norte, CO, 42 mi away).
- 🔄 Backwards, 81131 becomes 13118 — and that is a real ZIP code: Moravia, NY, 1,571 miles away.
- 👥 6 other ZIP codes are made of exactly the same digits (11381, 13118, 13811, 31811, 38111, 83111). The farthest-flung twin is 11381 in Flushing, NY, 1,703 miles away.
- 🧭 Farther south than 59% of all ZIP codes, and farther west than 83%.
- 🎯405 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 81131 and you would come out at 37.87°S, 74.32°E — 819 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 14h 47m of daylight. Shortest: 9h 32m.
- 📏 At 373.0 square miles of land, 81131 is bigger than 96% of ZIP codes — room for about 283 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 1,051This ZIP1,051 |
|---|---|
| Households | 775This ZIP775 |
| Housing units | 868This ZIP868 |
| Median age | 64.9This ZIP64.9Colorado37.7US 38.9 |
| Median household income | $45,156This ZIP$45,156Colorado$95,470US $80,734 |
| Median home value | $333,500This ZIP$333,500Colorado$539,400US $332,700 |
| Median gross rent | $1,643This ZIP$1,643Colorado$1,761US $1,413 |
| Bachelor's degree or higher | 47.5%This ZIP47.5% |
| Mean commute | 13.2 minThis ZIP13.2 min |
| Population density | 2.8 / sq miThis ZIP2.8 / sq mi |
Business and tax activity
| Business establishments | 50This ZIP50 |
|---|---|
| Employees | 198This ZIP198 |
| Annual payroll | $6,725,000This ZIP$6,725,000 |
Land area
| Land area | 373.02 sq miThis ZIP373.02 sq mi |
|---|---|
| Water area | 0.32 sq miThis ZIP0.32 sq mi |
Other place names in 81131
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 81131
| ZIP | City | Distance |
|---|---|---|
81136 | Hooper, CO | 12.5 mi |
81146 | Mosca, CO | 15.2 mi |
81125 | Center, CO | 21.6 mi |
81252 | Westcliffe, CO | 21.8 mi |
81143 | Moffat, CO | 22.3 mi |
81040 | Gardner, CO | 25.3 mi |
81232 | Hillside, CO | 28.6 mi |
81101 | Alamosa, CO | 29.0 mi |
81102 | Alamosa, CO | 29.1 mi |
81135 | Homelake, CO | 30.4 mi |
Find every ZIP code within 10 miles of 81131 →
Questions about this ZIP code
Where is ZIP code 81131?
81131 is in Crestone, Colorado, in Saguache County. Its published point location is 37.8654, -105.6791.
What county is 81131 in?
81131 lies in Saguache County.
What area code is 81131?
Crestone uses area code 719, from NANPA's telephone records.
What time zone is 81131 in?
81131 uses America/Denver.
How many people live in 81131?
About 1,051 people live in ZIP code 81131, in 775 households, at 2.8 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 81131?
$45,156 a year, against $95,470 across Colorado.
What ZIP codes are near 81131?
The closest are 81136 (12.5 mi), 81146 (15.2 mi), 81125 (21.6 mi), 81252 (21.8 mi) and 81143 (22.3 mi).
Is 81131 a PO Box ZIP code?
81131 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “81131 ZIP Code — Crestone, Colorado (Saguache County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/81131
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/81131.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.