40010
ZIP 40010 is Buckner, Kentucky, in Oldham County; area code 502; Eastern time.
- Type
- Standard
- Time zone
- America/New_York
- County
- Oldham
- Metro area
- Louisville/Jefferson County, KY-IN
- Population
- 678
- Coordinates
- 38.3725, -85.4595
Weather right now
Asking the National Weather Service…
Where 40010 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 40010 into a pocket calculator and turn it upside down: OIOOh — not quite a word, sorry.
- ➕ As a number, 40,010 = 2 × 5 × 4001. Its digits add up to 5, a total 55 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1001110001001010 - 🏠 Its numerical neighbours: 40009 (Bradfordsville, KY, 65 mi away) and 40011 (Campbellsburg, KY, 19 mi away).
- 🔄 Backwards, 40010 becomes 01004 — and that is a real ZIP code: Amherst, MA, 735 miles away.
- 👥 6 other ZIP codes are made of exactly the same digits (01004, 01040, 04001, 04010, 10004, 10040). The farthest-flung twin is 04010 in Brownfield, ME, 847 miles away.
- 🧭 Farther south than 56% 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 40010 and you would come out at 38.37°S, 94.54°E — 1,280 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 51m of daylight. Shortest: 9h 29m.
- 📏 At 1.5 square miles of land, 40010 is bigger than 10% of ZIP codes — room for about 1.2 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 678This ZIP678 |
|---|---|
| Households | 223This ZIP223 |
| Housing units | 223This ZIP223 |
| Median age | 36.2This ZIP36.2Kentucky39.1US 38.9 |
| Median household income | $196,125This ZIP$196,125Kentucky$63,726US $80,734 |
| Median home value | $591,500This ZIP$591,500Kentucky$205,600US $332,700 |
| Bachelor's degree or higher | 56.9%This ZIP56.9% |
| Mean commute | 22.4 minThis ZIP22.4 min |
| Population density | 442.3 / sq miThis ZIP442.3 / sq mi |
Business and tax activity
| Business establishments | 51This ZIP51 |
|---|---|
| Employees | 1,424This ZIP1,424 |
| Annual payroll | $87,233,000This ZIP$87,233,000 |
| Tax returns filed | 360This ZIP360 |
| Total adjusted gross income | $40,234,000This ZIP$40,234,000 |
Land area
| Land area | 1.53 sq miThis ZIP1.53 sq mi |
|---|---|
| Water area | 0.02 sq miThis ZIP0.02 sq mi |
Other place names in 40010
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 40010
| ZIP | City | Distance |
|---|---|---|
40032 | La Grange, KY | 2.2 mi |
40014 | Crestwood, KY | 2.6 mi |
40026 | Goshen, KY | 4.6 mi |
40056 | Pewee Valley, KY | 4.7 mi |
40031 | La Grange, KY | 5.1 mi |
40059 | Prospect, KY | 6.7 mi |
40245 | Louisville, KY | 7.3 mi |
40241 | Louisville, KY | 8.0 mi |
40077 | Westport, KY | 8.5 mi |
40223 | Louisville, KY | 9.0 mi |
Find every ZIP code within 10 miles of 40010 →
Questions about this ZIP code
Where is ZIP code 40010?
40010 is in Buckner, Kentucky, in Oldham County, part of the Louisville/Jefferson County, KY-IN metropolitan area. Its published point location is 38.3725, -85.4595.
What county is 40010 in?
40010 lies in Oldham County.
What area code is 40010?
Buckner uses area code 502, from NANPA's telephone records.
What time zone is 40010 in?
40010 uses America/New_York.
How many people live in 40010?
About 678 people live in ZIP code 40010, in 223 households, at 442.3 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 40010?
$196,125 a year, against $63,726 across Kentucky.
What ZIP codes are near 40010?
The closest are 40032 (2.2 mi), 40014 (2.6 mi), 40026 (4.6 mi), 40056 (4.7 mi) and 40031 (5.1 mi).
Is 40010 a PO Box ZIP code?
40010 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “40010 ZIP Code — Buckner, Kentucky (Oldham County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/40010
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/40010.json Underlying data is public domain or openly licensed — sources, vintages and licences.