40291
ZIP 40291 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
- 41,222
- Coordinates
- 38.1261, -85.5796
Weather right now
Asking the National Weather Service…
Where 40291 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 40291 into a pocket calculator and turn it upside down: IGZOh — not quite a word, sorry.
- ➕ As a number, 40,291 = 43 × 937. Its digits add up to 16, a total 1,922 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1001110101100011 - 🏠 Its numerical neighbours: 40290 (Louisville, KY, 7 mi away) and 40292 (Louisville, KY, 7 mi away).
- 🔄 Backwards, 40291 becomes 19204, which is not a ZIP code at all.
- 👥 56 other ZIP codes are made of exactly the same digits (02149, 02914, 04219, 04291, 04912, 04921, …). The farthest-flung twin is 09142 in APO AE, a military post office, 4,549 miles away.
- 🧭 Farther south than 57% of all ZIP codes, and farther east than 55%.
- 🎯707 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 40291 and you would come out at 38.13°S, 94.42°E — 1,282 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 49m of daylight. Shortest: 9h 31m.
- 📏 At 22.6 square miles of land, 40291 is bigger than 40% of ZIP codes — room for about 17 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 41,222This ZIP41,222 |
|---|---|
| Households | 16,591This ZIP16,591 |
| Housing units | 17,035This ZIP17,035 |
| Median age | 39.1This ZIP39.1Kentucky39.1US 38.9 |
| Median household income | $81,267This ZIP$81,267Kentucky$63,726US $80,734 |
| Median home value | $276,900This ZIP$276,900Kentucky$205,600US $332,700 |
| Median gross rent | $1,207This ZIP$1,207Kentucky$967US $1,413 |
| Bachelor's degree or higher | 31.7%This ZIP31.7% |
| Mean commute | 23.9 minThis ZIP23.9 min |
| Population density | 1,821.5 / sq miThis ZIP1,821.5 / sq mi |
Business and tax activity
| Business establishments | 540This ZIP540 |
|---|---|
| Employees | 4,971This ZIP4,971 |
| Annual payroll | $170,676,000This ZIP$170,676,000 |
| Tax returns filed | 20,380This ZIP20,380 |
| Total adjusted gross income | $1,514,412,000This ZIP$1,514,412,000 |
Land area
| Land area | 22.63 sq miThis ZIP22.63 sq mi |
|---|---|
| Water area | 0.31 sq miThis ZIP0.31 sq mi |
Other place names in 40291
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 40291
| ZIP | City | Distance |
|---|---|---|
40228 | Louisville, KY | 3.2 mi |
40299 | Louisville, KY | 3.8 mi |
40229 | Louisville, KY | 5.1 mi |
40218 | Louisville, KY | 6.1 mi |
40219 | Louisville, KY | 6.2 mi |
40129 | Hillview, KY | 6.3 mi |
40047 | Mount Washington, KY | 6.4 mi |
40220 | Louisville, KY | 6.5 mi |
40201 | Louisville, KY | 6.8 mi |
40224 | Louisville, KY | 6.8 mi |
Find every ZIP code within 10 miles of 40291 →
Questions about this ZIP code
Where is ZIP code 40291?
40291 is in Louisville, Kentucky, in Jefferson County, part of the Louisville/Jefferson County, KY-IN metropolitan area. Its published point location is 38.1261, -85.5796.
What county is 40291 in?
40291 lies in Jefferson County.
What area code is 40291?
Louisville uses area code 502, from NANPA's telephone records.
What time zone is 40291 in?
40291 uses America/Kentucky/Louisville.
How many people live in 40291?
About 41,222 people live in ZIP code 40291, in 16,591 households, at 1,821.5 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 40291?
$81,267 a year, against $63,726 across Kentucky.
What ZIP codes are near 40291?
The closest are 40228 (3.2 mi), 40299 (3.8 mi), 40229 (5.1 mi), 40218 (6.1 mi) and 40219 (6.2 mi).
Is 40291 a PO Box ZIP code?
40291 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “40291 ZIP Code — Louisville, Kentucky (Jefferson County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/40291
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/40291.json Underlying data is public domain or openly licensed — sources, vintages and licences.