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Where 81611 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 81611 into a pocket calculator and turn it upside down: IIgIB — not quite a word, sorry.
- ➕ 81611 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 17, a total 2,133 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10011111011001011 - 🏠 Its numerical neighbours: 81610 (Dinosaur, CO, 139 mi away) and 81612 (Aspen, CO, 12 mi away).
- 🔄 Backwards, 81611 becomes 11618, which is not a ZIP code at all.
- 👥 3 other ZIP codes are made of exactly the same digits (18611, 61811, 68111). The farthest-flung twin is 18611 in Cambra, PA, 1,601 miles away.
- 🧭 Farther north than 50% of all ZIP codes, and farther west than 84%.
- 🎯434 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 81611 and you would come out at 39.16°S, 73.33°E — 721 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 14h 55m of daylight. Shortest: 9h 25m.
- 📏 At 305.6 square miles of land, 81611 is bigger than 95% of ZIP codes — room for about 232 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 9,068This ZIP9,068 |
|---|---|
| Households | 5,236This ZIP5,236 |
| Housing units | 7,763This ZIP7,763 |
| Median age | 44.3This ZIP44.3Colorado37.7US 38.9 |
| Median household income | $82,664This ZIP$82,664Colorado$95,470US $80,734 |
| Median home value | $988,000This ZIP$988,000Colorado$539,400US $332,700 |
| Median gross rent | $1,959This ZIP$1,959Colorado$1,761US $1,413 |
| Bachelor's degree or higher | 67.7%This ZIP67.7% |
| Mean commute | 15.8 minThis ZIP15.8 min |
| Population density | 29.7 / sq miThis ZIP29.7 / sq mi |
Business and tax activity
| Business establishments | 1,199This ZIP1,199 |
|---|---|
| Employees | 12,563This ZIP12,563 |
| Annual payroll | $803,557,000This ZIP$803,557,000 |
| Tax returns filed | 4,740This ZIP4,740 |
| Total adjusted gross income | $1,854,355,000This ZIP$1,854,355,000 |
Land area
| Land area | 305.58 sq miThis ZIP305.58 sq mi |
|---|---|
| Water area | 0.37 sq miThis ZIP0.37 sq mi |
Other place names in 81611
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 81611
| ZIP | City | Distance |
|---|---|---|
81656 | Woody Creek, CO | 10.5 mi |
81642 | Meredith, CO | 12.0 mi |
81612 | Aspen, CO | 12.0 mi |
81251 | Twin Lakes, CO | 12.4 mi |
81615 | Snowmass Village, CO | 15.2 mi |
81621 | Basalt, CO | 18.8 mi |
80429 | Climax, CO | 19.7 mi |
81211 | Buena Vista, CO | 20.1 mi |
81654 | Snowmass, CO | 20.5 mi |
80461 | Leadville, CO | 21.2 mi |
Find every ZIP code within 10 miles of 81611 →
Questions about this ZIP code
Where is ZIP code 81611?
81611 is in Aspen, Colorado, in Pitkin County, part of the Rifle, CO micropolitan area. Its published point location is 39.1582, -106.6686.
What county is 81611 in?
81611 lies in Pitkin County.
What area code is 81611?
Aspen uses area code 970, from NANPA's telephone records.
What time zone is 81611 in?
81611 uses America/Denver.
How many people live in 81611?
About 9,068 people live in ZIP code 81611, in 5,236 households, at 29.7 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 81611?
$82,664 a year, against $95,470 across Colorado.
What ZIP codes are near 81611?
The closest are 81656 (10.5 mi), 81642 (12 mi), 81612 (12 mi), 81251 (12.4 mi) and 81615 (15.2 mi).
Is 81611 a PO Box ZIP code?
81611 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “81611 ZIP Code — Aspen, Colorado (Pitkin County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/81611
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/81611.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.