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Where 73855 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 73855 into a pocket calculator and turn it upside down: SSBEL — not quite a word, sorry.
- ➕ As a number, 73,855 = 5 × 14771. Its digits add up to 28, a total 1,520 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10010000001111111 - 🏠 Its numerical neighbours: 73853 (Mutual, OK, 58 mi away) and 73857 (Sharon, OK, 51 mi away).
- 🔄 Backwards, 73855 becomes 55837, which is not a ZIP code at all.
- 👥 30 other ZIP codes are made of exactly the same digits (35578, 35587, 35758, 38557, 38575, 53578, …). The farthest-flung twin is 38557 in Crossville, TN, 826 miles away.
- 🧭 Farther south than 65% of all ZIP codes, and farther west than 79%.
- 🎯215 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 73855 and you would come out at 36.87°S, 80.15°E — 995 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 14h 41m of daylight. Shortest: 9h 38m.
- 📏 At 146.6 square miles of land, 73855 is bigger than 86% of ZIP codes — room for about 111 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 253This ZIP253 |
|---|---|
| Households | 76This ZIP76 |
| Housing units | 90This ZIP90 |
| Median age | 30.7This ZIP30.7Oklahoma37.0US 38.9 |
| Median household income | $63,333This ZIP$63,333Oklahoma$65,039US $80,734 |
| Median home value | $185,700This ZIP$185,700Oklahoma$199,800US $332,700 |
| Bachelor's degree or higher | 61.6%This ZIP61.6% |
| Mean commute | 18.8 minThis ZIP18.8 min |
| Population density | 1.7 / sq miThis ZIP1.7 / sq mi |
Land area
| Land area | 146.62 sq miThis ZIP146.62 sq mi |
|---|---|
| Water area | 0.84 sq miThis ZIP0.84 sq mi |
Other place names in 73855
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 73855
| ZIP | City | Distance |
|---|---|---|
67840 | Englewood, KS | 13.4 mi |
73834 | Buffalo, OK | 15.7 mi |
73844 | Gate, OK | 17.1 mi |
73848 | Laverne, OK | 19.6 mi |
73851 | May, OK | 21.2 mi |
67831 | Ashland, KS | 21.7 mi |
73841 | Fort Supply, OK | 26.0 mi |
67127 | Protection, KS | 28.4 mi |
73843 | Gage, OK | 32.9 mi |
67864 | Meade, KS | 33.0 mi |
Find every ZIP code within 10 miles of 73855 →
Questions about this ZIP code
Where is ZIP code 73855?
73855 is in Rosston, Oklahoma, in Harper County. Its published point location is 36.8747, -99.8530.
What county is 73855 in?
73855 lies in Harper County.
What area code is 73855?
Rosston uses area code 580, from NANPA's telephone records.
What time zone is 73855 in?
73855 uses America/Chicago.
How many people live in 73855?
About 253 people live in ZIP code 73855, in 76 households, at 1.7 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 73855?
$63,333 a year, against $65,039 across Oklahoma.
What ZIP codes are near 73855?
The closest are 67840 (13.4 mi), 73834 (15.7 mi), 73844 (17.1 mi), 73848 (19.6 mi) and 73851 (21.2 mi).
Is 73855 a PO Box ZIP code?
73855 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “73855 ZIP Code — Rosston, Oklahoma (Harper County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/73855
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/73855.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.