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/40047

40047

ZIP 40047 is Mount Washington, Kentucky, mostly in Bullitt County; area code 502; Eastern time.

Type
Standard
Time zone
America/New_York
County
Bullitt +2 more
Population
23,662
Coordinates
38.0360, -85.5555
☼ Live from 40047 — Mount Washington, KY

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 40047 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 40047
  • 🔢 Type 40047 into a pocket calculator and turn it upside down: LhOOh — not quite a word, sorry.
  • ➕ As a number, 40,047 = 3 × 7 × 1907. Its digits add up to 15, a total 1,657 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1001110001101111
  • 🏠 Its numerical neighbours: 40046 (Mount Eden, KY, 21 mi away) and 40048 (Nazareth, KY, 14 mi away).
  • 🔄 Backwards, 40047 becomes 74004 — and that is a real ZIP code: Bartlesville, OK, 575 miles away.
  • 👥 12 other ZIP codes are made of exactly the same digits (00744, 04047, 04074, 04740, 07044, 07440, …). The farthest-flung twin is 00744 in Rio Blanco, PR, 1,815 miles away.
  • 🧭 Farther south than 58% of all ZIP codes, and farther east than 55%.
  • 🎯710 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 40047 and you would come out at 38.04°S, 94.44°E — 1,279 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 48m of daylight. Shortest: 9h 31m.
  • 📏 At 29.9 square miles of land, 40047 is bigger than 46% of ZIP codes — room for about 23 Central Parks.
🌙 The sky over 40047 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population23,662This ZIP23,662
Households8,881This ZIP8,881
Housing units9,261This ZIP9,261
Median age40.3This ZIP40.3Kentucky39.1US 38.9
Median household income$99,124This ZIP$99,124Kentucky$63,726US $80,734
Median home value$279,400This ZIP$279,400Kentucky$205,600US $332,700
Median gross rent$1,027This ZIP$1,027Kentucky$967US $1,413
Bachelor's degree or higher26.2%This ZIP26.2%
Mean commute31.5 minThis ZIP31.5 min
Population density791.9 / sq miThis ZIP791.9 / sq mi

Business and tax activity

Business establishments335This ZIP335
Employees4,476This ZIP4,476
Annual payroll$248,983,000This ZIP$248,983,000
Tax returns filed11,720This ZIP11,720
Total adjusted gross income$905,469,000This ZIP$905,469,000

Land area

Land area29.88 sq miThis ZIP29.88 sq mi
Water area0.32 sq miThis ZIP0.32 sq mi

Counties 40047 spans

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

CountyShare of this ZIP
Bullitt County 95.3%
Spencer County 4.3%
Jefferson County 0.4%

Other place names in 40047

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

ZIP codes near 40047

ZIPCityDistance
40291 Louisville, KY 6.4 mi
40229 Louisville, KY 6.8 mi
40129 Hillview, KY 7.2 mi
40013 Coxs Creek, KY 7.6 mi
40165 Shepherdsville, KY 8.2 mi
40299 Louisville, KY 8.3 mi
40228 Louisville, KY 8.4 mi
40110 Clermont, KY 8.4 mi
40166 Shepherdsville, KY 9.3 mi
40071 Taylorsville, KY 9.6 mi

Find every ZIP code within 10 miles of 40047 →

Questions about this ZIP code

Where is ZIP code 40047?

40047 is in Mount Washington, Kentucky, in Bullitt County, part of the Louisville/Jefferson County, KY-IN metropolitan area. Its published point location is 38.0360, -85.5555.

What county is 40047 in?

40047 spans 3 counties: Bullitt County, Spencer County and Jefferson County. Most of it falls in Bullitt 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 40047?

Mount Washington uses area code 502, from NANPA's telephone records.

What time zone is 40047 in?

40047 uses America/New_York.

How many people live in 40047?

About 23,662 people live in ZIP code 40047, in 8,881 households, at 791.9 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 40047?

$99,124 a year, against $63,726 across Kentucky.

What ZIP codes are near 40047?

The closest are 40291 (6.4 mi), 40229 (6.8 mi), 40129 (7.2 mi), 40013 (7.6 mi) and 40165 (8.2 mi).

Is 40047 a PO Box ZIP code?

40047 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “40047 ZIP Code — Mount Washington, Kentucky (Bullitt County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/40047

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/40047.json

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