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/40405

40405

ZIP 40405 is Bighill, Kentucky, in Madison County; area code 859; Eastern time.

Type
No street area
Time zone
America/New_York
County
Madison
Metro area
Richmond-Berea, KY
Coordinates
37.5545, -84.2083

The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

This ZIP code has no Census tabulation area of its own. Its point falls inside ZCTA 40403, whose figures describe that area — not this ZIP code.

☼ Live from 40405 — Bighill, KY

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Local time: —

Where 40405 is

This ZIP code has no Census tabulation area, so there is no boundary to draw — the marker is its published point location.

★ Weird and wonderful facts about 40405
  • 🔢 Type 40405 into a pocket calculator and turn it upside down: SOhOh — not quite a word, sorry.
  • ➕ As a number, 40,405 = 5 × 8081. Its digits add up to 13, a total 1,179 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1001110111010101
  • 🏠 Its numerical neighbours: 40404 (Berea, KY, 5 mi away) and 40409 (Brodhead, KY, 18 mi away).
  • 🔄 Backwards, 40405 becomes 50404, which is not a ZIP code at all.
  • 👥 14 other ZIP codes are made of exactly the same digits (00544, 04054, 04450, 05404, 05440, 40045, …). The farthest-flung twin is 04450 in Kenduskeag, ME, 941 miles away.
  • 🧭 Farther south than 61% of all ZIP codes, and farther east than 59%.
  • 🎯790 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 40405 and you would come out at 37.55°S, 95.79°E — 1,200 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 46m of daylight. Shortest: 9h 34m.
🌙 The sky over 40405 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

Business and tax activity

Business establishments3This ZIP3
Employees14This ZIP14
Annual payroll$214,000This ZIP$214,000

Land area

ZIP codes near 40405

ZIPCityDistance
40403 Berea, KY 3.2 mi
40404 Berea, KY 4.7 mi
40492 Wildie, KY 10.4 mi
40481 Sandgap, KY 10.6 mi
40488 Waneta, KY 10.6 mi
40461 Paint Lick, KY 11.0 mi
40460 Orlando, KY 11.5 mi
40447 Mc Kee, KY 11.9 mi
40385 Waco, KY 13.3 mi
40473 Renfro Valley, KY 13.3 mi

Find every ZIP code within 10 miles of 40405 →

Questions about this ZIP code

Where is ZIP code 40405?

40405 is in Bighill, Kentucky, in Madison County, part of the Richmond-Berea, KY micropolitan area. Its published point location is 37.5545, -84.2083.

What county is 40405 in?

40405 lies in Madison County.

What area code is 40405?

Bighill uses area code 859, from NANPA's telephone records.

What time zone is 40405 in?

40405 uses America/New_York.

What ZIP codes are near 40405?

The closest are 40403 (3.2 mi), 40404 (4.7 mi), 40492 (10.4 mi), 40481 (10.6 mi) and 40488 (10.6 mi).

Is 40405 a PO Box ZIP code?

Possibly. The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

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Cite this page

zipcodes.pro. “40405 ZIP Code — Bighill, Kentucky (Madison County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/40405

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/40405.json

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