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Where 40312 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 40312 into a pocket calculator and turn it upside down: ZIEOh — not quite a word, sorry.
- ➕ As a number, 40,312 = 2 × 2 × 2 × 5039. Its digits add up to 10, a total 513 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1001110101111000 - 🏠 Its numerical neighbours: 40311 (Carlisle, KY, 34 mi away) and 40313 (Clearfield, KY, 35 mi away).
- 🔄 Backwards, 40312 becomes 21304, which is not a ZIP code at all.
- 👥 68 other ZIP codes are made of exactly the same digits (01243, 01342, 01432, 02134, 02143, 02341, …). The farthest-flung twin is 34021 in APO AA, a military post office, 1,782 miles away.
- 🧭 Farther south than 59% of all ZIP codes, and farther east than 60%.
- 🎯799 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 40312 and you would come out at 37.84°S, 96.07°E — 1,190 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 47m of daylight. Shortest: 9h 32m.
- 📏 At 56.9 square miles of land, 40312 is bigger than 63% of ZIP codes — room for about 43 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 5,994This ZIP5,994 |
|---|---|
| Households | 2,272This ZIP2,272 |
| Housing units | 2,681This ZIP2,681 |
| Median age | 41.1This ZIP41.1Kentucky39.1US 38.9 |
| Median household income | $42,564This ZIP$42,564Kentucky$63,726US $80,734 |
| Median home value | $144,600This ZIP$144,600Kentucky$205,600US $332,700 |
| Median gross rent | $711This ZIP$711Kentucky$967US $1,413 |
| Bachelor's degree or higher | 11.3%This ZIP11.3% |
| Mean commute | 28.3 minThis ZIP28.3 min |
| Population density | 105.4 / sq miThis ZIP105.4 / sq mi |
Business and tax activity
| Business establishments | 62This ZIP62 |
|---|---|
| Employees | 611This ZIP611 |
| Annual payroll | $24,244,000This ZIP$24,244,000 |
| Tax returns filed | 2,230This ZIP2,230 |
| Total adjusted gross income | $102,736,000This ZIP$102,736,000 |
Land area
| Land area | 56.87 sq miThis ZIP56.87 sq mi |
|---|---|
| Water area | 0.61 sq miThis ZIP0.61 sq mi |
Counties 40312 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Powell County | 99.9% |
| Estill County | 0.1% |
Other place names in 40312
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 40312
| ZIP | City | Distance |
|---|---|---|
40380 | Stanton, KY | 7.7 mi |
40337 | Jeffersonville, KY | 8.0 mi |
40472 | Ravenna, KY | 8.7 mi |
40336 | Irvine, KY | 11.6 mi |
40376 | Slade, KY | 12.5 mi |
40385 | Waco, KY | 13.2 mi |
40346 | Means, KY | 14.3 mi |
40391 | Winchester, KY | 14.5 mi |
40353 | Mount Sterling, KY | 15.3 mi |
40334 | Hope, KY | 16.1 mi |
Find every ZIP code within 10 miles of 40312 →
Questions about this ZIP code
Where is ZIP code 40312?
40312 is in Clay City, Kentucky, in Powell County. Its published point location is 37.8443, -83.9329.
What county is 40312 in?
40312 spans 2 counties: Powell County and Estill County. Most of it falls in Powell County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.
What area code is 40312?
Clay City uses area code 606, from NANPA's telephone records.
What time zone is 40312 in?
40312 uses America/New_York.
How many people live in 40312?
About 5,994 people live in ZIP code 40312, in 2,272 households, at 105.4 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 40312?
$42,564 a year, against $63,726 across Kentucky.
What ZIP codes are near 40312?
The closest are 40380 (7.7 mi), 40337 (8 mi), 40472 (8.7 mi), 40336 (11.6 mi) and 40376 (12.5 mi).
Is 40312 a PO Box ZIP code?
40312 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “40312 ZIP Code — Clay City, Kentucky (Powell County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/40312
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/40312.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.