Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/66404

66404

ZIP 66404 is Baileyville, Kansas, mostly in Nemaha County; area code 785; Central time.

Type
Standard
Time zone
America/Chicago
County
Nemaha +1 more
Metro area
none
Population
481
Coordinates
39.8638, -96.1728
☼ Live from 66404 — Baileyville, KS

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 66404 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 66404
  • 🔢 Type 66404 into a pocket calculator and turn it upside down: hOhgg — not quite a word, sorry.
  • ➕ As a number, 66,404 = 2 × 2 × 13 × 1277. Its digits add up to 20, a total 2,586 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10000001101100100
  • 🏠 Its numerical neighbours: 66403 (Axtell, KS, 5 mi away) and 66406 (Beattie, KS, 13 mi away).
  • 🔄 Backwards, 66404 becomes 40466, which is not a ZIP code at all.
  • 👥 13 other ZIP codes are made of exactly the same digits (04646, 04664, 44606, 44660, 46064, 46406, …). The farthest-flung twin is 04664 in Sullivan, ME, 1,463 miles away.
  • 🧭 Farther north than 55% of all ZIP codes, and farther west than 72%.
  • 🎯128 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 66404 and you would come out at 39.86°S, 83.83°E — 934 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 00m of daylight. Shortest: 9h 20m.
  • 📏 At 62.6 square miles of land, 66404 is bigger than 66% of ZIP codes — room for about 48 Central Parks.
🌙 The sky over 66404 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population481This ZIP481
Households191This ZIP191
Housing units229This ZIP229
Median age34.1This ZIP34.1Kansas37.4US 38.9
Median household income$89,620This ZIP$89,620Kansas$74,275US $80,734
Median home value$179,700This ZIP$179,700Kansas$217,200US $332,700
Bachelor's degree or higher25.3%This ZIP25.3%
Mean commute15.2 minThis ZIP15.2 min
Population density7.7 / sq miThis ZIP7.7 / sq mi

Business and tax activity

Business establishments10This ZIP10
Employees38This ZIP38
Annual payroll$750,000This ZIP$750,000
Tax returns filed250This ZIP250
Total adjusted gross income$24,167,000This ZIP$24,167,000

Land area

Land area62.57 sq miThis ZIP62.57 sq mi
Water area0.09 sq miThis ZIP0.09 sq mi

Counties 66404 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Nemaha County 98.1%
Marshall County 1.9%

Other place names in 66404

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

ZIP codes near 66404

ZIPCityDistance
66403 Axtell, KS 5.5 mi
66538 Seneca, KS 6.9 mi
66541 Summerfield, KS 12.0 mi
66408 Bern, KS 12.0 mi
66415 Centralia, KS 12.2 mi
66522 Oneida, KS 12.4 mi
66544 Vermillion, KS 13.2 mi
66406 Beattie, KS 13.3 mi
68345 Du Bois, NE 14.4 mi
68420 Pawnee City, NE 14.9 mi

Find every ZIP code within 10 miles of 66404 →

Questions about this ZIP code

Where is ZIP code 66404?

66404 is in Baileyville, Kansas, in Nemaha County. Its published point location is 39.8638, -96.1728.

What county is 66404 in?

66404 spans 2 counties: Nemaha County and Marshall County. Most of it falls in Nemaha 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 66404?

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

What time zone is 66404 in?

66404 uses America/Chicago.

How many people live in 66404?

About 481 people live in ZIP code 66404, in 191 households, at 7.7 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 66404?

$89,620 a year, against $74,275 across Kansas.

What ZIP codes are near 66404?

The closest are 66403 (5.5 mi), 66538 (6.9 mi), 66541 (12 mi), 66408 (12 mi) and 66415 (12.2 mi).

Is 66404 a PO Box ZIP code?

66404 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “66404 ZIP Code — Baileyville, Kansas (Nemaha County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/66404

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/66404.json

Underlying data is public domain or openly licensed — sources, vintages and licences.