Weather right now
Asking the National Weather Service…
Where 42728 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 42728 into a pocket calculator and turn it upside down: BZLZh — not quite a word, sorry.
- ➕ As a number, 42,728 = 2 × 2 × 2 × 7 × 7 × 109. Its digits add up to 23, a total 2,533 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1010011011101000 - 🏠 Its numerical neighbours: 42726 (Clarkson, KY, 52 mi away) and 42729 (Cub Run, KY, 46 mi away).
- 🔄 Backwards, 42728 becomes 82724, which is not a ZIP code at all.
- 👥 26 other ZIP codes are made of exactly the same digits (22748, 22847, 24827, 24872, 27248, 27284, …). The farthest-flung twin is 84722 in Central, UT, 1,548 miles away.
- 🧭 Farther south than 64% of all ZIP codes, and farther east than 56%.
- 🎯742 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 42728 and you would come out at 37.12°S, 94.71°E — 1,253 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 43m of daylight. Shortest: 9h 36m.
- 📏 At 320.9 square miles of land, 42728 is bigger than 95% of ZIP codes — room for about 244 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 16,412This ZIP16,412 |
|---|---|
| Households | 6,223This ZIP6,223 |
| Housing units | 7,586This ZIP7,586 |
| Median age | 39.2This ZIP39.2Kentucky39.1US 38.9 |
| Median household income | $51,623This ZIP$51,623Kentucky$63,726US $80,734 |
| Median home value | $151,300This ZIP$151,300Kentucky$205,600US $332,700 |
| Median gross rent | $771This ZIP$771Kentucky$967US $1,413 |
| Bachelor's degree or higher | 22.8%This ZIP22.8% |
| Mean commute | 22.2 minThis ZIP22.2 min |
| Population density | 51.1 / sq miThis ZIP51.1 / sq mi |
Business and tax activity
| Business establishments | 315This ZIP315 |
|---|---|
| Employees | 3,940This ZIP3,940 |
| Annual payroll | $150,837,000This ZIP$150,837,000 |
| Tax returns filed | 6,320This ZIP6,320 |
| Total adjusted gross income | $319,365,000This ZIP$319,365,000 |
Land area
| Land area | 320.91 sq miThis ZIP320.91 sq mi |
|---|---|
| Water area | 5.77 sq miThis ZIP5.77 sq mi |
Counties 42728 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Adair County | 96.0% |
| Taylor County | 3.9% |
| Metcalfe County | 0.1% |
Other place names in 42728
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 42728
| ZIP | City | Distance |
|---|---|---|
42720 | Cane Valley, KY | 4.7 mi |
42741 | Glens Fork, KY | 10.0 mi |
42742 | Gradyville, KY | 10.5 mi |
42753 | Knifley, KY | 10.9 mi |
42715 | Breeding, KY | 13.8 mi |
42642 | Russell Springs, KY | 14.6 mi |
42528 | Dunnville, KY | 15.4 mi |
42743 | Greensburg, KY | 15.4 mi |
42719 | Campbellsville, KY | 15.4 mi |
42629 | Jamestown, KY | 16.4 mi |
Find every ZIP code within 10 miles of 42728 →
Questions about this ZIP code
Where is ZIP code 42728?
42728 is in Columbia, Kentucky, in Adair County. Its published point location is 37.1170, -85.2901.
What county is 42728 in?
42728 spans 3 counties: Adair County, Taylor County and Metcalfe County. Most of it falls in Adair 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 42728?
Columbia uses area code 270, from NANPA's telephone records.
What time zone is 42728 in?
42728 uses America/Chicago.
How many people live in 42728?
About 16,412 people live in ZIP code 42728, in 6,223 households, at 51.1 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 42728?
$51,623 a year, against $63,726 across Kentucky.
What ZIP codes are near 42728?
The closest are 42720 (4.7 mi), 42741 (10 mi), 42742 (10.5 mi), 42753 (10.9 mi) and 42715 (13.8 mi).
Is 42728 a PO Box ZIP code?
42728 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “42728 ZIP Code — Columbia, Kentucky (Adair County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/42728
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/42728.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.