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/40742

40742

ZIP 40742 is in London, Kentucky, in Laurel County; area code 606; Eastern time. London has 6 ZIP codes; the others are 40741, 40743, 40744, 40745 and 40750.

Type
No street area
Time zone
America/New_York
County
Laurel
Metro area
Corbin, KY
Coordinates
37.1376, -84.1156

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 40741, whose figures describe that area — not this ZIP code.

☼ Live from 40742 — London, KY

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Where 40742 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 40742
  • 🔢 Type 40742 into a pocket calculator and turn it upside down: ZhLOh — not quite a word, sorry.
  • ➕ As a number, 40,742 = 2 × 13 × 1567. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1001111100100110
  • 🏠 Its numerical neighbours: 40741 (London, KY, 0 mi away) and 40743 (London, KY, 4 mi away).
  • 🔄 Backwards, 40742 becomes 24704, which is not a ZIP code at all.
  • 👥 32 other ZIP codes are made of exactly the same digits (02447, 02474, 02744, 04274, 04427, 04472, …). The farthest-flung twin is 04742 in Fort Fairfield, ME, 1,065 miles away.
  • 🧭 Farther south than 64% of all ZIP codes, and farther east than 60%.
  • 🎯803 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 40742 and you would come out at 37.14°S, 95.88°E — 1,189 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 43m of daylight. Shortest: 9h 36m.
🌙 The sky over 40742 today
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Source: USGS.

Land area

ZIP codes near 40742

ZIPCityDistance
40745 London, KY 0.0 mi
40741 London, KY 0.4 mi
40750 London, KY 1.9 mi
40755 Pittsburg, KY 2.1 mi
40743 London, KY 3.9 mi
40744 London, KY 7.3 mi
40729 East Bernstadt, KY 7.9 mi
40737 Keavy, KY 8.9 mi
40740 Lily, KY 9.2 mi
40402 Annville, KY 13.1 mi

Find every ZIP code within 10 miles of 40742 →

Questions about this ZIP code

Where is ZIP code 40742?

40742 is in London, Kentucky, in Laurel County, part of the Corbin, KY micropolitan area. Its published point location is 37.1376, -84.1156.

What county is 40742 in?

40742 lies in Laurel County.

What area code is 40742?

London uses area code 606, from NANPA's telephone records.

What time zone is 40742 in?

40742 uses America/New_York.

What ZIP codes are near 40742?

The closest are 40745 (0 mi), 40741 (0.4 mi), 40750 (1.9 mi), 40755 (2.1 mi) and 40743 (3.9 mi).

Is 40742 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. “40742 ZIP Code — London, Kentucky (Laurel County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/40742

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/40742.json

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