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Where 40819 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 40819 into a pocket calculator and turn it upside down: GIBOh — not quite a word, sorry.
- ➕ 40819 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 22, a total 2,607 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1001111101110011 - 🏠 Its numerical neighbours: 40818 (Coalgood, KY, 11 mi away) and 40820 (Cranks, KY, 16 mi away).
- 🔄 Backwards, 40819 becomes 91804 — and that is a real ZIP code: Alhambra, CA, 1,951 miles away.
- 👥 48 other ZIP codes are made of exactly the same digits (01984, 04918, 04981, 09184, 09418, 09814, …). The farthest-flung twin is 09814 in APO AE, a military post office, 7,762 miles away.
- 🧭 Farther south than 65% of all ZIP codes, and farther east than 62%.
- 🎯846 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 40819 and you would come out at 36.80°S, 96.56°E — 1,148 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 41m of daylight. Shortest: 9h 38m.
- 📏 At 16.4 square miles of land, 40819 is bigger than 34% of ZIP codes — room for about 12 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 808This ZIP808 |
|---|---|
| Households | 377This ZIP377 |
| Housing units | 524This ZIP524 |
| Median age | 66.1This ZIP66.1Kentucky39.1US 38.9 |
| Median household income | $31,799This ZIP$31,799Kentucky$63,726US $80,734 |
| Bachelor's degree or higher | 7.6%This ZIP7.6% |
| Mean commute | 17.6 minThis ZIP17.6 min |
| Population density | 49.2 / sq miThis ZIP49.2 / sq mi |
Business and tax activity
| Business establishments | 8This ZIP8 |
|---|---|
| Employees | 37This ZIP37 |
| Annual payroll | $968,000This ZIP$968,000 |
| Tax returns filed | 240This ZIP240 |
| Total adjusted gross income | $11,447,000This ZIP$11,447,000 |
Land area
| Land area | 16.42 sq miThis ZIP16.42 sq mi |
|---|---|
| Water area | 0.15 sq miThis ZIP0.15 sq mi |
Other place names in 40819
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 40819
| ZIP | City | Distance |
|---|---|---|
40873 | Wallins Creek, KY | 2.4 mi |
40845 | Hulen, KY | 3.6 mi |
40824 | Dayhoit, KY | 4.0 mi |
40863 | Pathfork, KY | 5.2 mi |
40854 | Loyall, KY | 5.3 mi |
40964 | Mary Alice, KY | 5.9 mi |
40830 | Gulston, KY | 6.4 mi |
40988 | Stoney Fork, KY | 6.5 mi |
40831 | Harlan, KY | 6.9 mi |
40856 | Miracle, KY | 7.2 mi |
Find every ZIP code within 10 miles of 40819 →
Questions about this ZIP code
Where is ZIP code 40819?
40819 is in Coldiron, Kentucky, in Harlan County. Its published point location is 36.8023, -83.4416.
What county is 40819 in?
40819 lies in Harlan County.
What area code is 40819?
Coldiron uses area code 606, from NANPA's telephone records.
What time zone is 40819 in?
40819 uses America/New_York.
How many people live in 40819?
About 808 people live in ZIP code 40819, in 377 households, at 49.2 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 40819?
$31,799 a year, against $63,726 across Kentucky.
What ZIP codes are near 40819?
The closest are 40873 (2.4 mi), 40845 (3.6 mi), 40824 (4 mi), 40863 (5.2 mi) and 40854 (5.3 mi).
Is 40819 a PO Box ZIP code?
40819 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “40819 ZIP Code — Coldiron, Kentucky (Harlan County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/40819
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/40819.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.