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Where 81237 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 81237 into a pocket calculator and turn it upside down: LEZIB — not quite a word, sorry.
- ➕ As a number, 81,237 = 3 × 13 × 2083. Its digits add up to 21, a total 2,594 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10011110101010101 - 🏠 Its numerical neighbours: 81236 (Nathrop, CO, 20 mi away) and 81239 (Parlin, CO, 6 mi away).
- 🔄 Backwards, 81237 becomes 73218, which is not a ZIP code at all.
- 👥 56 other ZIP codes are made of exactly the same digits (12738, 12783, 12837, 12873, 13782, 13827, …). The farthest-flung twin is 12837 in Hampton, NY, 1,759 miles away.
- 🧭 Farther south than 54% of all ZIP codes, and farther west than 84%.
- 🎯438 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 81237 and you would come out at 38.62°S, 73.38°E — 758 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 14h 52m of daylight. Shortest: 9h 28m.
- 📏 At 53.9 square miles of land, 81237 is bigger than 62% of ZIP codes — room for about 41 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 169This ZIP169 |
|---|---|
| Households | 74This ZIP74 |
| Housing units | 209This ZIP209 |
| Median age | 61.7This ZIP61.7Colorado37.7US 38.9 |
| Median household income | $134,038This ZIP$134,038Colorado$95,470US $80,734 |
| Median home value | $583,300This ZIP$583,300Colorado$539,400US $332,700 |
| Bachelor's degree or higher | 76.6%This ZIP76.6% |
| Population density | 3.1 / sq miThis ZIP3.1 / sq mi |
Business and tax activity
| Business establishments | 6This ZIP6 |
|---|---|
| Employees | 13This ZIP13 |
| Annual payroll | $796,000This ZIP$796,000 |
Land area
| Land area | 53.88 sq miThis ZIP53.88 sq mi |
|---|---|
| Water area | 0.04 sq miThis ZIP0.04 sq mi |
ZIP codes near 81237
| ZIP | City | Distance |
|---|---|---|
81239 | Parlin, CO | 5.5 mi |
81241 | Pitkin, CO | 7.2 mi |
81210 | Almont, CO | 13.6 mi |
81248 | Sargents, CO | 15.1 mi |
81231 | Gunnison, CO | 17.1 mi |
81227 | Monarch, CO | 18.5 mi |
81236 | Nathrop, CO | 19.7 mi |
81230 | Gunnison, CO | 23.6 mi |
81224 | Crested Butte, CO | 24.8 mi |
81211 | Buena Vista, CO | 27.8 mi |
Find every ZIP code within 10 miles of 81237 →
Questions about this ZIP code
Where is ZIP code 81237?
81237 is in Ohio City, Colorado, in Gunnison County. Its published point location is 38.6163, -106.6213.
What county is 81237 in?
81237 lies in Gunnison County.
What area code is 81237?
Ohio City uses area code 970, from NANPA's telephone records.
What time zone is 81237 in?
81237 uses America/Denver.
How many people live in 81237?
About 169 people live in ZIP code 81237, in 74 households, at 3.1 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 81237?
$134,038 a year, against $95,470 across Colorado.
What ZIP codes are near 81237?
The closest are 81239 (5.5 mi), 81241 (7.2 mi), 81210 (13.6 mi), 81248 (15.1 mi) and 81231 (17.1 mi).
Is 81237 a PO Box ZIP code?
81237 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “81237 ZIP Code — Ohio City, Colorado (Gunnison County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/81237
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/81237.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.