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/40004

40004

ZIP 40004 is Bardstown, Kentucky, in Nelson County; area code 502; Eastern time.

Type
Standard
Time zone
America/New_York
County
Nelson
Population
30,601
Coordinates
37.8024, -85.4699
☼ Live from 40004 — Bardstown, KY

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 40004 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 40004
  • 🔢 Type 40004 into a pocket calculator and turn it upside down: hOOOh — not quite a word, sorry.
  • ⇆40004 reads the same backwards. It is one of only 412 palindromic ZIP codes.
  • ➕ As a number, 40,004 = 2 × 2 × 73 × 137. Its digits add up to 8, a total 251 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1001110001000100
  • 🏠 Its numerical neighbours: 40003 (Bagdad, KY, 40 mi away) and 40006 (Bedford, KY, 55 mi away).
  • 👥 3 other ZIP codes are made of exactly the same digits (04004, 04040, 40040). The farthest-flung twin is 04040 in Harrison, ME, 879 miles away.
  • 🧭 Farther south than 59% of all ZIP codes, and farther east than 55%.
  • 🎯719 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 40004 and you would come out at 37.80°S, 94.53°E — 1,271 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 47m of daylight. Shortest: 9h 32m.
  • 📏 At 145.5 square miles of land, 40004 is bigger than 86% of ZIP codes — room for about 110 Central Parks.
🌙 The sky over 40004 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population30,601This ZIP30,601
Households12,519This ZIP12,519
Housing units13,130This ZIP13,130
Median age39.6This ZIP39.6Kentucky39.1US 38.9
Median household income$66,578This ZIP$66,578Kentucky$63,726US $80,734
Median home value$242,200This ZIP$242,200Kentucky$205,600US $332,700
Median gross rent$1,037This ZIP$1,037Kentucky$967US $1,413
Bachelor's degree or higher25.3%This ZIP25.3%
Mean commute25.1 minThis ZIP25.1 min
Population density210.4 / sq miThis ZIP210.4 / sq mi

Business and tax activity

Business establishments799This ZIP799
Employees15,482This ZIP15,482
Annual payroll$852,938,000This ZIP$852,938,000
Tax returns filed15,020This ZIP15,020
Total adjusted gross income$1,067,008,000This ZIP$1,067,008,000

Land area

Land area145.46 sq miThis ZIP145.46 sq mi
Water area2.02 sq miThis ZIP2.02 sq mi

Other place names in 40004

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

ZIP codes near 40004

ZIPCityDistance
40048 Nazareth, KY 3.1 mi
40107 Boston, KY 8.8 mi
40013 Coxs Creek, KY 9.6 mi
40020 Fairfield, KY 10.2 mi
40037 Loretto, KY 10.2 mi
40049 Nerinx, KY 10.4 mi
40051 New Haven, KY 12.0 mi
40150 Lebanon Junction, KY 12.4 mi
40008 Bloomfield, KY 12.9 mi
40061 Saint Catharine, KY 12.9 mi

Find every ZIP code within 10 miles of 40004 →

Questions about this ZIP code

Where is ZIP code 40004?

40004 is in Bardstown, Kentucky, in Nelson County, part of the Louisville/Jefferson County, KY-IN metropolitan area. Its published point location is 37.8024, -85.4699.

What county is 40004 in?

40004 lies in Nelson County.

What area code is 40004?

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

What time zone is 40004 in?

40004 uses America/New_York.

How many people live in 40004?

About 30,601 people live in ZIP code 40004, in 12,519 households, at 210.4 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 40004?

$66,578 a year, against $63,726 across Kentucky.

What ZIP codes are near 40004?

The closest are 40048 (3.1 mi), 40107 (8.8 mi), 40013 (9.6 mi), 40020 (10.2 mi) and 40037 (10.2 mi).

Is 40004 a PO Box ZIP code?

40004 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “40004 ZIP Code — Bardstown, Kentucky (Nelson County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/40004

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/40004.json

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