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/40763

40763

ZIP 40763 is Siler, Kentucky, mostly in Whitley County; area code 606; Eastern time.

Type
Standard
Time zone
America/New_York
County
Whitley +1 more
Metro area
Corbin, KY
Population
411
Coordinates
36.6892, -83.9256
☼ Live from 40763 — Siler, KY

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 40763 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 40763
  • 🔢 Type 40763 into a pocket calculator and turn it upside down: EgLOh — not quite a word, sorry.
  • ➕ 40763 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 20, a total 2,586 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1001111100111011
  • 🏠 Its numerical neighbours: 40759 (Rockholds, KY, 11 mi away) and 40769 (Williamsburg, KY, 15 mi away).
  • 🔄 Backwards, 40763 becomes 36704, which is not a ZIP code at all.
  • 👥 63 other ZIP codes are made of exactly the same digits (03467, 03746, 04637, 04673, 04736, 04763, …). The farthest-flung twin is 04736 in Caribou, ME, 1,078 miles away.
  • 🧭 Farther south than 66% of all ZIP codes, and farther east than 60%.
  • 🎯823 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 40763 and you would come out at 36.69°S, 96.07°E — 1,173 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 40m of daylight. Shortest: 9h 39m.
  • 📏 At 26.1 square miles of land, 40763 is bigger than 43% of ZIP codes — room for about 20 Central Parks.
🌙 The sky over 40763 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population411This ZIP411
Households162This ZIP162
Housing units253This ZIP253
Median age27.7This ZIP27.7Kentucky39.1US 38.9
Median home value$80,700This ZIP$80,700Kentucky$205,600US $332,700
Median gross rent$632This ZIP$632Kentucky$967US $1,413
Bachelor's degree or higher0.0%
Mean commute44.2 minThis ZIP44.2 min
Population density15.7 / sq miThis ZIP15.7 / sq mi

Business and tax activity

Tax returns filed110This ZIP110
Total adjusted gross income$4,232,000This ZIP$4,232,000

Land area

Land area26.10 sq miThis ZIP26.10 sq mi
Water area0.02 sq miThis ZIP0.02 sq mi

Counties 40763 spans

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

CountyShare of this ZIP
Whitley County 88.0%
Knox County 12.0%

ZIP codes near 40763

ZIPCityDistance
40940 Frakes, KY 6.0 mi
40995 Trosper, KY 7.2 mi
40921 Bryants Store, KY 7.2 mi
37730 Eagan, TN 8.8 mi
37715 Clairfield, TN 9.6 mi
40903 Artemus, KY 10.5 mi
40977 Pineville, KY 11.1 mi
40759 Rockholds, KY 11.2 mi
37851 Pruden, TN 11.3 mi
40965 Middlesboro, KY 11.8 mi

Find every ZIP code within 10 miles of 40763 →

Questions about this ZIP code

Where is ZIP code 40763?

40763 is in Siler, Kentucky, in Whitley County, part of the Corbin, KY micropolitan area. Its published point location is 36.6892, -83.9256.

What county is 40763 in?

40763 spans 2 counties: Whitley County and Knox County. Most of it falls in Whitley 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 40763?

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

What time zone is 40763 in?

40763 uses America/New_York.

How many people live in 40763?

About 411 people live in ZIP code 40763, in 162 households, at 15.7 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What ZIP codes are near 40763?

The closest are 40940 (6 mi), 40995 (7.2 mi), 40921 (7.2 mi), 37730 (8.8 mi) and 37715 (9.6 mi).

Is 40763 a PO Box ZIP code?

40763 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “40763 ZIP Code — Siler, Kentucky (Whitley County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/40763

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/40763.json

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