66523
ZIP 66523 is Osage City, Kansas, mostly in Osage County; area code 785; Central time.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Osage +1 more
- Metro area
- Topeka, KS
- Population
- 3,941
- Coordinates
- 38.6158, -95.8340
Weather right now
Asking the National Weather Service…
Where 66523 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 66523 into a pocket calculator and turn it upside down: EZSgg — not quite a word, sorry.
- ➕ 66523 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 22, a total 2,607 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10000001111011011 - 🏠 Its numerical neighbours: 66522 (Oneida, KS, 87 mi away) and 66524 (Overbrook, KS, 21 mi away).
- 🔄 Backwards, 66523 becomes 32566 — and that is a real ZIP code: Navarre, FL, 760 miles away.
- 👥 28 other ZIP codes are made of exactly the same digits (23665, 26563, 32566, 32656, 35266, 35662, …). The farthest-flung twin is 23665 in Hampton, VA, 1,066 miles away.
- 🧭 Farther south than 54% of all ZIP codes, and farther west than 71%.
- 🎯169 miles southeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 66523 and you would come out at 38.62°S, 84.17°E — 1,012 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 153.1 square miles of land, 66523 is bigger than 87% of ZIP codes — room for about 116 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 3,941This ZIP3,941 |
|---|---|
| Households | 1,672This ZIP1,672 |
| Housing units | 1,869This ZIP1,869 |
| Median age | 42.7This ZIP42.7Kansas37.4US 38.9 |
| Median household income | $74,716This ZIP$74,716Kansas$74,275US $80,734 |
| Median home value | $167,200This ZIP$167,200Kansas$217,200US $332,700 |
| Median gross rent | $798This ZIP$798Kansas$1,060US $1,413 |
| Bachelor's degree or higher | 20.9%This ZIP20.9% |
| Mean commute | 24.0 minThis ZIP24.0 min |
| Population density | 25.7 / sq miThis ZIP25.7 / sq mi |
Business and tax activity
| Business establishments | 93This ZIP93 |
|---|---|
| Employees | 877This ZIP877 |
| Annual payroll | $29,097,000This ZIP$29,097,000 |
| Tax returns filed | 1,700This ZIP1,700 |
| Total adjusted gross income | $103,300,000This ZIP$103,300,000 |
Land area
| Land area | 153.05 sq miThis ZIP153.05 sq mi |
|---|---|
| Water area | 7.70 sq miThis ZIP7.70 sq mi |
Counties 66523 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Osage County | 96.1% |
| Lyon County | 3.9% |
Other place names in 66523
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 66523
| ZIP | City | Distance |
|---|---|---|
66451 | Lyndon, KS | 8.7 mi |
66868 | Reading, KS | 9.3 mi |
66413 | Burlingame, KS | 10.9 mi |
66537 | Scranton, KS | 11.2 mi |
66543 | Vassar, KS | 12.8 mi |
66830 | Admire, KS | 13.9 mi |
66510 | Melvern, KS | 14.5 mi |
66856 | Lebo, KS | 15.1 mi |
66431 | Harveyville, KS | 16.0 mi |
66528 | Quenemo, KS | 16.0 mi |
Find every ZIP code within 10 miles of 66523 →
Questions about this ZIP code
Where is ZIP code 66523?
66523 is in Osage City, Kansas, in Osage County, part of the Topeka, KS metropolitan area. Its published point location is 38.6158, -95.8340.
What county is 66523 in?
66523 spans 2 counties: Osage County and Lyon County. Most of it falls in Osage County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.
What area code is 66523?
Osage City uses area code 785, from NANPA's telephone records.
What time zone is 66523 in?
66523 uses America/Chicago.
How many people live in 66523?
About 3,941 people live in ZIP code 66523, in 1,672 households, at 25.7 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 66523?
$74,716 a year, against $74,275 across Kansas.
What ZIP codes are near 66523?
The closest are 66451 (8.7 mi), 66868 (9.3 mi), 66413 (10.9 mi), 66537 (11.2 mi) and 66543 (12.8 mi).
Is 66523 a PO Box ZIP code?
66523 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “66523 ZIP Code — Osage City, Kansas (Osage County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/66523
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/66523.json Underlying data is public domain or openly licensed — sources, vintages and licences.