40221
ZIP 40221 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
- Metro area
- Louisville/Jefferson County, KY-IN
- Population
- 0
- Coordinates
- 38.1865, -85.7531
Weather right now
Asking the National Weather Service…
Where 40221 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.
- 🔢 Type 40221 into a pocket calculator and turn it upside down: IZZOh — not quite a word, sorry.
- ➕ As a number, 40,221 = 3 × 3 × 41 × 109. Its digits add up to 9, a total 375 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1001110100011101 - 🏠 Its numerical neighbours: 40220 (Louisville, KY, 8 mi away) and 40222 (Louisville, KY, 9 mi away).
- 🔄 Backwards, 40221 becomes 12204 — and that is a real ZIP code: Albany, NY, 704 miles away.
- 👥 43 other ZIP codes are made of exactly the same digits (01224, 01242, 02124, 02142, 02241, 02421, …). The farthest-flung twin is 04221 in Canton, ME, 910 miles away.
- 🧭 Farther south than 57% of all ZIP codes, and farther east than 54%.
- 🎯697 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 40221 and you would come out at 38.19°S, 94.25°E — 1,292 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 49m of daylight. Shortest: 9h 30m.
- 📏 At 0.144 square miles of land, 40221 is bigger than 2% of ZIP codes — about 70 football fields.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 0 |
|---|---|
| Households | 0 |
| Housing units | 0 |
| Population density | 0.0 / sq mi |
Business and tax activity
| Business establishments | 6This ZIP6 |
|---|---|
| Employees | 37This ZIP37 |
| Annual payroll | $903,000This ZIP$903,000 |
Land area
| Land area | 0.14 sq miThis ZIP0.14 sq mi |
|---|---|
| Water area | 0.00 sq mi |
Other place names in 40221
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 40221
| ZIP | City | Distance |
|---|---|---|
40209 | Louisville, KY | 1.0 mi |
40215 | Louisville, KY | 1.8 mi |
40213 | Louisville, KY | 2.1 mi |
40208 | Louisville, KY | 2.2 mi |
40217 | Louisville, KY | 2.3 mi |
40214 | Louisville, KY | 3.0 mi |
40231 | Louisville, KY | 3.2 mi |
40210 | Louisville, KY | 3.6 mi |
40204 | Louisville, KY | 4.0 mi |
40201 | Louisville, KY | 4.1 mi |
Find every ZIP code within 10 miles of 40221 →
Questions about this ZIP code
Where is ZIP code 40221?
40221 is in Louisville, Kentucky, in Jefferson County, part of the Louisville/Jefferson County, KY-IN metropolitan area. Its published point location is 38.1865, -85.7531.
What county is 40221 in?
40221 lies in Jefferson County.
What area code is 40221?
Louisville uses area code 502, from NANPA's telephone records.
What time zone is 40221 in?
40221 uses America/Kentucky/Louisville.
How many people live in 40221?
About 0 people live in ZIP code 40221. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What ZIP codes are near 40221?
The closest are 40209 (1 mi), 40215 (1.8 mi), 40213 (2.1 mi), 40208 (2.2 mi) and 40217 (2.3 mi).
Is 40221 a PO Box ZIP code?
40221 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “40221 ZIP Code — Louisville, Kentucky (Jefferson County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/40221
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/40221.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.