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zipcodes.pro — ZIP/66401

66401

ZIP 66401 is Alma, Kansas, in Wabaunsee County; area code 785; Central time.

Type
Standard
Time zone
America/Chicago
County
Wabaunsee
Metro area
Topeka, KS
Population
1,948
Coordinates
38.9324, -96.3097
☼ Live from 66401 — Alma, KS

Weather right now

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Local time: —

Where 66401 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 66401
  • 🔢 Type 66401 into a pocket calculator and turn it upside down: IOhgg — not quite a word, sorry.
  • ➕ As a number, 66,401 = 23 × 2887. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10000001101100001
  • 🏠 Its numerical neighbours: 66286 (Shawnee, KS, 86 mi away) and 66402 (Auburn, KS, 25 mi away).
  • 🔄 Backwards, 66401 becomes 10466 — and that is a real ZIP code: Bronx, NY, 1,195 miles away.
  • 👥 36 other ZIP codes are made of exactly the same digits (04616, 06146, 06416, 06461, 06614, 10466, …). The farthest-flung twin is 04616 in Brooklin, ME, 1,474 miles away.
  • 🧭 Farther south than 51% of all ZIP codes, and farther west than 72%.
  • 🎯136 miles southeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 66401 and you would come out at 38.93°S, 83.69°E — 979 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 54m of daylight. Shortest: 9h 26m.
  • 📏 At 241.1 square miles of land, 66401 is bigger than 93% of ZIP codes — room for about 183 Central Parks.
🌙 The sky over 66401 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,948This ZIP1,948
Households843This ZIP843
Housing units1,057This ZIP1,057
Median age43.9This ZIP43.9Kansas37.4US 38.9
Median household income$73,516This ZIP$73,516Kansas$74,275US $80,734
Median home value$220,900This ZIP$220,900Kansas$217,200US $332,700
Bachelor's degree or higher26.8%This ZIP26.8%
Mean commute26.5 minThis ZIP26.5 min
Population density8.1 / sq miThis ZIP8.1 / sq mi

Business and tax activity

Business establishments47This ZIP47
Employees448This ZIP448
Annual payroll$18,656,000This ZIP$18,656,000
Tax returns filed890This ZIP890
Total adjusted gross income$67,368,000This ZIP$67,368,000

Land area

Land area241.06 sq miThis ZIP241.06 sq mi
Water area1.09 sq miThis ZIP1.09 sq mi

Other place names in 66401

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

ZIP codes near 66401

ZIPCityDistance
66501 Mc Farland, KS 9.2 mi
66834 Alta Vista, KS 9.2 mi
66423 Eskridge, KS 11.4 mi
66526 Paxico, KS 12.1 mi
66849 Dwight, KS 16.2 mi
66507 Maple Hill, KS 17.1 mi
66833 Allen, KS 17.5 mi
66502 Manhattan, KS 18.5 mi
66431 Harveyville, KS 18.7 mi
66547 Wamego, KS 20.7 mi

Find every ZIP code within 10 miles of 66401 →

Questions about this ZIP code

Where is ZIP code 66401?

66401 is in Alma, Kansas, in Wabaunsee County, part of the Topeka, KS metropolitan area. Its published point location is 38.9324, -96.3097.

What county is 66401 in?

66401 lies in Wabaunsee County.

What area code is 66401?

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

What time zone is 66401 in?

66401 uses America/Chicago.

How many people live in 66401?

About 1,948 people live in ZIP code 66401, in 843 households, at 8.1 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 66401?

$73,516 a year, against $74,275 across Kansas.

What ZIP codes are near 66401?

The closest are 66501 (9.2 mi), 66834 (9.2 mi), 66423 (11.4 mi), 66526 (12.1 mi) and 66849 (16.2 mi).

Is 66401 a PO Box ZIP code?

66401 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “66401 ZIP Code — Alma, Kansas (Wabaunsee County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/66401

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