40823
ZIP 40823 is Cumberland, Kentucky, mostly in Harlan County; area code 606; Eastern time.
- Type
- Standard
- Time zone
- America/New_York
- County
- Harlan +1 more
- Metro area
- none
- Population
- 3,742
- Coordinates
- 36.9587, -82.9910
Weather right now
Asking the National Weather Service…
Where 40823 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 40823 into a pocket calculator and turn it upside down: EZBOh — not quite a word, sorry.
- ➕ 40823 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 17, a total 2,133 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1001111101110111 - 🏠 Its numerical neighbours: 40820 (Cranks, KY, 14 mi away) and 40824 (Dayhoit, KY, 23 mi away).
- 🔄 Backwards, 40823 becomes 32804 — and that is a real ZIP code: Orlando, FL, 586 miles away.
- 👥 62 other ZIP codes are made of exactly the same digits (02348, 03284, 03824, 03842, 04238, 08234, …). The farthest-flung twin is 83204 in Pocatello, ID, 1,608 miles away.
- 🧭 Farther south than 64% of all ZIP codes, and farther east than 63%.
- 🎯866 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 40823 and you would come out at 36.96°S, 97.01°E — 1,126 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 42m of daylight. Shortest: 9h 37m.
- 📏 At 48.4 square miles of land, 40823 is bigger than 59% of ZIP codes — room for about 37 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 3,742This ZIP3,742 |
|---|---|
| Households | 1,516This ZIP1,516 |
| Housing units | 1,817This ZIP1,817 |
| Median age | 31.6This ZIP31.6Kentucky39.1US 38.9 |
| Median household income | $35,402This ZIP$35,402Kentucky$63,726US $80,734 |
| Median home value | $70,500This ZIP$70,500Kentucky$205,600US $332,700 |
| Median gross rent | $633This ZIP$633Kentucky$967US $1,413 |
| Bachelor's degree or higher | 15.7%This ZIP15.7% |
| Mean commute | 23.4 minThis ZIP23.4 min |
| Population density | 77.2 / sq miThis ZIP77.2 / sq mi |
Business and tax activity
| Business establishments | 47This ZIP47 |
|---|---|
| Employees | 900This ZIP900 |
| Annual payroll | $36,671,000This ZIP$36,671,000 |
| Tax returns filed | 980This ZIP980 |
| Total adjusted gross income | $40,888,000This ZIP$40,888,000 |
Land area
| Land area | 48.45 sq miThis ZIP48.45 sq mi |
|---|---|
| Water area | 0.19 sq miThis ZIP0.19 sq mi |
Counties 40823 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Harlan County | 99.9% |
| Letcher County | 0.1% |
Other place names in 40823
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 40823
| ZIP | City | Distance |
|---|---|---|
40807 | Benham, KY | 2.0 mi |
40927 | Closplint, KY | 4.2 mi |
41833 | Linefork, KY | 4.7 mi |
40843 | Holmes Mill, KY | 5.5 mi |
40855 | Lynch, KY | 6.2 mi |
41819 | Gordon, KY | 6.7 mi |
41821 | Hallie, KY | 7.1 mi |
41735 | Delphia, KY | 7.3 mi |
40862 | Partridge, KY | 8.5 mi |
40849 | Lejunior, KY | 9.0 mi |
Find every ZIP code within 10 miles of 40823 →
Questions about this ZIP code
Where is ZIP code 40823?
40823 is in Cumberland, Kentucky, in Harlan County. Its published point location is 36.9587, -82.9910.
What county is 40823 in?
40823 spans 2 counties: Harlan County and Letcher County. Most of it falls in Harlan 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 40823?
Cumberland uses area code 606, from NANPA's telephone records.
What time zone is 40823 in?
40823 uses America/New_York.
How many people live in 40823?
About 3,742 people live in ZIP code 40823, in 1,516 households, at 77.2 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 40823?
$35,402 a year, against $63,726 across Kentucky.
What ZIP codes are near 40823?
The closest are 40807 (2 mi), 40927 (4.2 mi), 41833 (4.7 mi), 40843 (5.5 mi) and 40855 (6.2 mi).
Is 40823 a PO Box ZIP code?
40823 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “40823 ZIP Code — Cumberland, Kentucky (Harlan County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/40823
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/40823.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.