40040
ZIP 40040 is Mackville, Kentucky, in Washington County; area code 859; Eastern time.
- Type
- Standard
- Time zone
- America/New_York
- County
- Washington
- Metro area
- none
- Population
- 779
- Coordinates
- 37.7770, -85.0693
Weather right now
Asking the National Weather Service…
Where 40040 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 40040 into a pocket calculator and turn it upside down: OhOOh — not quite a word, sorry.
- ➕ As a number, 40,040 = 2 × 2 × 2 × 5 × 7 × 11 × 13. Its digits add up to 8, a total 251 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1001110001101000 - 🏠 Its numerical neighbours: 40037 (Loretto, KY, 21 mi away) and 40041 (Masonic Home, KY, 46 mi away).
- 🔄 Backwards, 40040 becomes 04004 — and that is a real ZIP code: Bar Mills, ME, 859 miles away.
- 👥 3 other ZIP codes are made of exactly the same digits (04004, 04040, 40004). The farthest-flung twin is 04040 in Harrison, ME, 862 miles away.
- 🧭 Farther south than 60% of all ZIP codes, and farther east than 56%.
- 🎯740 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 40040 and you would come out at 37.78°S, 94.93°E — 1,250 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 47m of daylight. Shortest: 9h 33m.
- 📏 At 18.0 square miles of land, 40040 is bigger than 36% of ZIP codes — room for about 14 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 779This ZIP779 |
|---|---|
| Households | 351This ZIP351 |
| Housing units | 446This ZIP446 |
| Median age | 44.4This ZIP44.4Kentucky39.1US 38.9 |
| Median home value | $158,600This ZIP$158,600Kentucky$205,600US $332,700 |
| Median gross rent | $664This ZIP$664Kentucky$967US $1,413 |
| Bachelor's degree or higher | 8.0%This ZIP8.0% |
| Mean commute | 27.8 minThis ZIP27.8 min |
| Population density | 43.2 / sq miThis ZIP43.2 / sq mi |
Business and tax activity
| Business establishments | 8This ZIP8 |
|---|---|
| Employees | 24This ZIP24 |
| Annual payroll | $772,000This ZIP$772,000 |
| Tax returns filed | 250This ZIP250 |
| Total adjusted gross income | $12,133,000This ZIP$12,133,000 |
Land area
| Land area | 18.03 sq miThis ZIP18.03 sq mi |
|---|---|
| Water area | 0.07 sq miThis ZIP0.07 sq mi |
Other place names in 40040
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 40040
| ZIP | City | Distance |
|---|---|---|
40078 | Willisburg, KY | 5.6 mi |
40069 | Springfield, KY | 8.4 mi |
40468 | Perryville, KY | 9.9 mi |
40330 | Harrodsburg, KY | 9.9 mi |
40012 | Chaplin, KY | 10.8 mi |
40061 | Saint Catharine, KY | 11.6 mi |
40372 | Salvisa, KY | 13.6 mi |
40452 | Mitchellsburg, KY | 13.7 mi |
40328 | Gravel Switch, KY | 13.8 mi |
40008 | Bloomfield, KY | 14.5 mi |
Find every ZIP code within 10 miles of 40040 →
Questions about this ZIP code
Where is ZIP code 40040?
40040 is in Mackville, Kentucky, in Washington County. Its published point location is 37.7770, -85.0693.
What county is 40040 in?
40040 lies in Washington County.
What area code is 40040?
Mackville uses area code 859, from NANPA's telephone records.
What time zone is 40040 in?
40040 uses America/New_York.
How many people live in 40040?
About 779 people live in ZIP code 40040, in 351 households, at 43.2 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What ZIP codes are near 40040?
The closest are 40078 (5.6 mi), 40069 (8.4 mi), 40468 (9.9 mi), 40330 (9.9 mi) and 40012 (10.8 mi).
Is 40040 a PO Box ZIP code?
40040 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “40040 ZIP Code — Mackville, Kentucky (Washington County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/40040
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/40040.json Underlying data is public domain or openly licensed — sources, vintages and licences.