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zipcodes.pro — ZIP/40204

40204

ZIP 40204 is in Louisville, Kentucky, in Jefferson County; area code 502; Eastern time. Louisville has 66 ZIP codes in all.

Type
Standard
Time zone
America/Kentucky/Louisville
County
Jefferson
Population
14,034
Coordinates
38.2395, -85.7223
☼ Live from 40204 — Louisville, KY

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Where 40204 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 40204
  • 🔢 Type 40204 into a pocket calculator and turn it upside down: hOZOh — not quite a word, sorry.
  • ⇆40204 reads the same backwards. It is one of only 412 palindromic ZIP codes.
  • ➕ As a number, 40,204 = 2 × 2 × 19 × 23 × 23. Its digits add up to 10, a total 513 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1001110100001100
  • 🏠 Its numerical neighbours: 40203 (Louisville, KY, 2 mi away) and 40205 (Louisville, KY, 2 mi away).
  • 👥 13 other ZIP codes are made of exactly the same digits (02044, 04024, 04042, 04240, 04402, 04420, …). The farthest-flung twin is 04402 in Bangor, ME, 984 miles away.
  • 🧭 Farther south than 57% of all ZIP codes, and farther east than 55%.
  • 🎯698 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 40204 and you would come out at 38.24°S, 94.28°E — 1,291 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 50m of daylight. Shortest: 9h 30m.
  • 📏 At 3.2 square miles of land, 40204 is bigger than 15% of ZIP codes — room for about 2.4 Central Parks.
🌙 The sky over 40204 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population14,034This ZIP14,034
Households7,731This ZIP7,731
Housing units8,818This ZIP8,818
Median age39.0This ZIP39.0Kentucky39.1US 38.9
Median household income$71,116This ZIP$71,116Kentucky$63,726US $80,734
Median home value$329,000This ZIP$329,000Kentucky$205,600US $332,700
Median gross rent$1,287This ZIP$1,287Kentucky$967US $1,413
Bachelor's degree or higher61.3%This ZIP61.3%
Mean commute17.7 minThis ZIP17.7 min
Population density4,421.6 / sq miThis ZIP4,421.6 / sq mi

Business and tax activity

Business establishments543This ZIP543
Employees7,104This ZIP7,104
Annual payroll$313,018,000This ZIP$313,018,000
Tax returns filed7,230This ZIP7,230
Total adjusted gross income$728,736,000This ZIP$728,736,000

Land area

Land area3.17 sq miThis ZIP3.17 sq mi
Water area0.04 sq miThis ZIP0.04 sq mi

Other place names in 40204

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

ZIP codes near 40204

ZIPCityDistance
40206 Louisville, KY 1.6 mi
40217 Louisville, KY 1.8 mi
40202 Louisville, KY 1.9 mi
40280 Louisville, KY 2.0 mi
40259 Louisville, KY 2.3 mi
40270 Louisville, KY 2.3 mi
40289 Louisville, KY 2.3 mi
40293 Louisville, KY 2.3 mi
40294 Louisville, KY 2.3 mi
40295 Louisville, KY 2.3 mi

Find every ZIP code within 10 miles of 40204 →

Questions about this ZIP code

Where is ZIP code 40204?

40204 is in Louisville, Kentucky, in Jefferson County, part of the Louisville/Jefferson County, KY-IN metropolitan area. Its published point location is 38.2395, -85.7223.

What county is 40204 in?

40204 lies in Jefferson County.

What area code is 40204?

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

What time zone is 40204 in?

40204 uses America/Kentucky/Louisville.

How many people live in 40204?

About 14,034 people live in ZIP code 40204, in 7,731 households, at 4,421.6 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 40204?

$71,116 a year, against $63,726 across Kentucky.

What ZIP codes are near 40204?

The closest are 40206 (1.6 mi), 40217 (1.8 mi), 40202 (1.9 mi), 40280 (2 mi) and 40259 (2.3 mi).

Is 40204 a PO Box ZIP code?

40204 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “40204 ZIP Code — Louisville, Kentucky (Jefferson County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/40204

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