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zipcodes.pro — ZIP/66531

66531

ZIP 66531 is Riley, Kansas, in Riley County; area code 785; Central time.

Type
Standard
Time zone
America/Chicago
County
Riley
Metro area
Manhattan, KS
Population
1,256
Coordinates
39.3124, -96.8385
☼ Live from 66531 — Riley, KS

Weather right now

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Local time: —

Where 66531 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.

★ Weird and wonderful facts about 66531
  • 🔢 Type 66531 into a pocket calculator and turn it upside down: IESgg — not quite a word, sorry.
  • ➕ As a number, 66,531 = 3 × 67 × 331. Its digits add up to 21, a total 2,594 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10000001111100011
  • 🏠 Its numerical neighbours: 66528 (Quenemo, KS, 85 mi away) and 66532 (Robinson, KS, 85 mi away).
  • 🔄 Backwards, 66531 becomes 13566, which is not a ZIP code at all.
  • 👥 29 other ZIP codes are made of exactly the same digits (13656, 13665, 15366, 15636, 15663, 16365, …). The farthest-flung twin is 13665 in Natural Bridge, NY, 1,148 miles away.
  • 🧭 Farther north than 51% of all ZIP codes, and farther west than 74%.
  • 🎯99 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 66531 and you would come out at 39.31°S, 83.16°E — 941 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 56m of daylight. Shortest: 9h 24m.
  • 📏 At 35.2 square miles of land, 66531 is bigger than 50% of ZIP codes — room for about 27 Central Parks.
🌙 The sky over 66531 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,256This ZIP1,256
Households500This ZIP500
Housing units591This ZIP591
Median age39.9This ZIP39.9Kansas37.4US 38.9
Median household income$79,063This ZIP$79,063Kansas$74,275US $80,734
Median home value$188,000This ZIP$188,000Kansas$217,200US $332,700
Median gross rent$1,203This ZIP$1,203Kansas$1,060US $1,413
Bachelor's degree or higher31.4%This ZIP31.4%
Mean commute26.1 minThis ZIP26.1 min
Population density35.6 / sq miThis ZIP35.6 / sq mi

Business and tax activity

Business establishments31This ZIP31
Employees147This ZIP147
Annual payroll$5,229,000This ZIP$5,229,000
Tax returns filed640This ZIP640
Total adjusted gross income$45,108,000This ZIP$45,108,000

Land area

Land area35.25 sq miThis ZIP35.25 sq mi
Water area0.03 sq miThis ZIP0.03 sq mi

Other place names in 66531

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 66531

ZIPCityDistance
66449 Leonardville, KS 5.5 mi
66503 Manhattan, KS 8.3 mi
66505 Manhattan, KS 8.7 mi
66554 Randolph, KS 12.9 mi
66514 Milford, KS 13.0 mi
67447 Green, KS 13.2 mi
66520 Olsburg, KS 13.9 mi
67487 Wakefield, KS 15.5 mi
66442 Fort Riley, KS 15.5 mi
66517 Ogden, KS 15.7 mi

Find every ZIP code within 10 miles of 66531 →

Questions about this ZIP code

Where is ZIP code 66531?

66531 is in Riley, Kansas, in Riley County, part of the Manhattan, KS metropolitan area. Its published point location is 39.3124, -96.8385.

What county is 66531 in?

66531 lies in Riley County.

What area code is 66531?

Riley uses area code 785, from NANPA's telephone records.

What time zone is 66531 in?

66531 uses America/Chicago.

How many people live in 66531?

About 1,256 people live in ZIP code 66531, in 500 households, at 35.6 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 66531?

$79,063 a year, against $74,275 across Kansas.

What ZIP codes are near 66531?

The closest are 66449 (5.5 mi), 66503 (8.3 mi), 66505 (8.7 mi), 66554 (12.9 mi) and 66514 (13 mi).

Is 66531 a PO Box ZIP code?

66531 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “66531 ZIP Code — Riley, Kansas (Riley County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/66531

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