81081
ZIP 81081 is Trinchera, Colorado, in Las Animas County; area code 719; Mountain time.
- Type
- Standard
- Time zone
- America/Denver
- County
- Las Animas
- Metro area
- none
- Population
- 89
- Coordinates
- 37.0655, -104.1558
Weather right now
Asking the National Weather Service…
Where 81081 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 81081 into a pocket calculator and turn it upside down: IBOIB — not quite a word, sorry.
- ➕ As a number, 81,081 = 3 × 3 × 3 × 3 × 7 × 11 × 13. Its digits add up to 18, a total 2,332 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10011110010111001 - 🏠 Its numerical neighbours: 81077 (Swink, CO, 72 mi away) and 81082 (Trinidad, CO, 16 mi away).
- 🔄 Backwards, 81081 becomes 18018 — and that is a real ZIP code: Bethlehem, PA, 1,560 miles away.
- 👥 7 other ZIP codes are made of exactly the same digits (18018, 18081, 18801, 18810, 80118, 88011, …). The farthest-flung twin is 18081 in Springtown, PA, 1,566 miles away.
- 🧭 Farther south than 64% of all ZIP codes, and farther west than 82%.
- 🎯357 miles southwest of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 81081 and you would come out at 37.07°S, 75.84°E — 894 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 14h 43m of daylight. Shortest: 9h 37m.
- 📏 At 311.5 square miles of land, 81081 is bigger than 95% of ZIP codes — room for about 237 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 89This ZIP89 |
|---|---|
| Households | 74This ZIP74 |
| Housing units | 92This ZIP92 |
| Median age | 82.1This ZIP82.1Colorado37.7US 38.9 |
| Median household income | $39,255This ZIP$39,255Colorado$95,470US $80,734 |
| Bachelor's degree or higher | 7.4%This ZIP7.4% |
| Population density | 0.3 / sq miThis ZIP0.3 / sq mi |
Land area
| Land area | 311.54 sq miThis ZIP311.54 sq mi |
|---|---|
| Water area | 0.07 sq miThis ZIP0.07 sq mi |
Other place names in 81081
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 81081
| ZIP | City | Distance |
|---|---|---|
81082 | Trinidad, CO | 16.4 mi |
81046 | Hoehne, CO | 19.8 mi |
88414 | Capulin, NM | 21.0 mi |
87740 | Raton, NM | 23.6 mi |
81027 | Branson, CO | 26.9 mi |
81024 | Boncarbo, CO | 32.6 mi |
81059 | Model, CO | 35.4 mi |
88418 | Des Moines, NM | 35.8 mi |
88419 | Folsom, NM | 35.8 mi |
81020 | Aguilar, CO | 37.2 mi |
Find every ZIP code within 10 miles of 81081 →
Questions about this ZIP code
Where is ZIP code 81081?
81081 is in Trinchera, Colorado, in Las Animas County. Its published point location is 37.0655, -104.1558.
What county is 81081 in?
81081 lies in Las Animas County.
What area code is 81081?
Trinchera uses area code 719, from NANPA's telephone records.
What time zone is 81081 in?
81081 uses America/Denver.
How many people live in 81081?
About 89 people live in ZIP code 81081, in 74 households, at 0.3 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 81081?
$39,255 a year, against $95,470 across Colorado.
What ZIP codes are near 81081?
The closest are 81082 (16.4 mi), 81046 (19.8 mi), 88414 (21 mi), 87740 (23.6 mi) and 81027 (26.9 mi).
Is 81081 a PO Box ZIP code?
81081 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “81081 ZIP Code — Trinchera, Colorado (Las Animas County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/81081
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/81081.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.