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Where 81236 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 81236 into a pocket calculator and turn it upside down: gEZIB — not quite a word, sorry.
- ➕ As a number, 81,236 = 2 × 2 × 23 × 883. Its digits add up to 20, a total 2,586 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10011110101010100 - 🏠 Its numerical neighbours: 81235 (Lake City, CO, 79 mi away) and 81237 (Ohio City, CO, 20 mi away).
- 🔄 Backwards, 81236 becomes 63218, which is not a ZIP code at all.
- 👥 52 other ZIP codes are made of exactly the same digits (12836, 12863, 13628, 13682, 13826, 13862, …). The farthest-flung twin is 12836 in Hague, NY, 1,722 miles away.
- 🧭 Farther south than 54% of all ZIP codes, and farther west than 84%.
- 🎯419 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 81236 and you would come out at 38.68°S, 73.74°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 27m.
- 📏 At 159.8 square miles of land, 81236 is bigger than 87% of ZIP codes — room for about 121 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 1,748This ZIP1,748 |
|---|---|
| Households | 760This ZIP760 |
| Housing units | 1,219This ZIP1,219 |
| Median age | 49.2This ZIP49.2Colorado37.7US 38.9 |
| Median household income | $98,170This ZIP$98,170Colorado$95,470US $80,734 |
| Median home value | $745,400This ZIP$745,400Colorado$539,400US $332,700 |
| Bachelor's degree or higher | 70.9%This ZIP70.9% |
| Mean commute | 13.6 minThis ZIP13.6 min |
| Population density | 10.9 / sq miThis ZIP10.9 / sq mi |
Business and tax activity
| Business establishments | 40This ZIP40 |
|---|---|
| Employees | 75This ZIP75 |
| Annual payroll | $2,499,000This ZIP$2,499,000 |
| Tax returns filed | 680This ZIP680 |
| Total adjusted gross income | $70,461,000This ZIP$70,461,000 |
Land area
| Land area | 159.84 sq miThis ZIP159.84 sq mi |
|---|---|
| Water area | 0.29 sq miThis ZIP0.29 sq mi |
Other place names in 81236
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 81236
| ZIP | City | Distance |
|---|---|---|
81227 | Monarch, CO | 8.9 mi |
81201 | Salida, CO | 11.9 mi |
81241 | Pitkin, CO | 12.5 mi |
81242 | Poncha Springs, CO | 17.5 mi |
81237 | Ohio City, CO | 19.7 mi |
81239 | Parlin, CO | 21.0 mi |
81211 | Buena Vista, CO | 21.4 mi |
81248 | Sargents, CO | 21.9 mi |
81210 | Almont, CO | 24.1 mi |
81228 | Granite, CO | 24.6 mi |
Find every ZIP code within 10 miles of 81236 →
Questions about this ZIP code
Where is ZIP code 81236?
81236 is in Nathrop, Colorado, in Chaffee County. Its published point location is 38.6763, -106.2637.
What county is 81236 in?
81236 lies in Chaffee County.
What area code is 81236?
Nathrop uses area code 719, from NANPA's telephone records.
What time zone is 81236 in?
81236 uses America/Denver.
How many people live in 81236?
About 1,748 people live in ZIP code 81236, in 760 households, at 10.9 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 81236?
$98,170 a year, against $95,470 across Colorado.
What ZIP codes are near 81236?
The closest are 81227 (8.9 mi), 81201 (11.9 mi), 81241 (12.5 mi), 81242 (17.5 mi) and 81237 (19.7 mi).
Is 81236 a PO Box ZIP code?
81236 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “81236 ZIP Code — Nathrop, Colorado (Chaffee County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/81236
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/81236.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.