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Where 40818 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 40818 into a pocket calculator and turn it upside down: BIBOh — not quite a word, sorry.
- ➕ As a number, 40,818 = 2 × 3 × 6803. Its digits add up to 21, a total 2,594 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1001111101110010 - 🏠 Its numerical neighbours: 40816 (Chappell, KY, 15 mi away) and 40819 (Coldiron, KY, 11 mi away).
- 🔄 Backwards, 40818 becomes 81804, which is not a ZIP code at all.
- 👥 19 other ZIP codes are made of exactly the same digits (14808, 14880, 18084, 18840, 48081, 48108, …). The farthest-flung twin is 84081 in West Jordan, UT, 1,567 miles away.
- 🧭 Farther south than 65% of all ZIP codes, and farther east than 62%.
- 🎯856 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 40818 and you would come out at 36.82°S, 96.76°E — 1,138 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 41m of daylight. Shortest: 9h 38m.
- 📏 At 4.4 square miles of land, 40818 is bigger than 18% of ZIP codes — room for about 3.3 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 148This ZIP148 |
|---|---|
| Households | 48This ZIP48 |
| Housing units | 48This ZIP48 |
| Median age | 46.3This ZIP46.3Kentucky39.1US 38.9 |
| Bachelor's degree or higher | 5.6%This ZIP5.6% |
| Population density | 33.9 / sq miThis ZIP33.9 / sq mi |
Land area
| Land area | 4.36 sq miThis ZIP4.36 sq mi |
|---|---|
| Water area | 0.05 sq miThis ZIP0.05 sq mi |
ZIP codes near 40818
| ZIP | City | Distance |
|---|---|---|
40815 | Cawood, KY | 2.2 mi |
40801 | Ages Brookside, KY | 2.5 mi |
40829 | Grays Knob, KY | 3.7 mi |
40820 | Cranks, KY | 4.9 mi |
40847 | Kenvir, KY | 5.2 mi |
24218 | Ben Hur, VA | 5.5 mi |
40806 | Baxter, KY | 5.7 mi |
40830 | Gulston, KY | 5.8 mi |
40964 | Mary Alice, KY | 5.9 mi |
40828 | Evarts, KY | 6.1 mi |
Find every ZIP code within 10 miles of 40818 →
Questions about this ZIP code
Where is ZIP code 40818?
40818 is in Coalgood, Kentucky, in Harlan County. Its published point location is 36.8216, -83.2431.
What county is 40818 in?
40818 lies in Harlan County.
What area code is 40818?
Coalgood uses area code 606, from NANPA's telephone records.
What time zone is 40818 in?
40818 uses America/New_York.
How many people live in 40818?
About 148 people live in ZIP code 40818, in 48 households, at 33.9 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 40818?
The closest are 40815 (2.2 mi), 40801 (2.5 mi), 40829 (3.7 mi), 40820 (4.9 mi) and 40847 (5.2 mi).
Is 40818 a PO Box ZIP code?
40818 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “40818 ZIP Code — Coalgood, Kentucky (Harlan County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/40818
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/40818.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.