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Where 42503 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 42503 into a pocket calculator and turn it upside down: EOSZh — not quite a word, sorry.
- ➕ As a number, 42,503 = 19 × 2237. Its digits add up to 14, a total 1,416 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1010011000000111 - 🏠 Its numerical neighbours: 42502 (Somerset, KY, 7 mi away) and 42516 (Bethelridge, KY, 15 mi away).
- 🔄 Backwards, 42503 becomes 30524, which is not a ZIP code at all.
- 👥 68 other ZIP codes are made of exactly the same digits (02345, 02453, 02534, 02543, 03245, 03254, …). The farthest-flung twin is 04352 in Mount Vernon, ME, 911 miles away.
- 🧭 Farther south than 64% of all ZIP codes, and farther east than 58%.
- 🎯781 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 42503 and you would come out at 37.16°S, 95.48°E — 1,211 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 43m of daylight. Shortest: 9h 36m.
- 📏 At 129.4 square miles of land, 42503 is bigger than 84% of ZIP codes — room for about 98 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 25,321This ZIP25,321 |
|---|---|
| Households | 10,272This ZIP10,272 |
| Housing units | 11,589This ZIP11,589 |
| Median age | 42.3This ZIP42.3Kentucky39.1US 38.9 |
| Median household income | $54,707This ZIP$54,707Kentucky$63,726US $80,734 |
| Median home value | $210,200This ZIP$210,200Kentucky$205,600US $332,700 |
| Median gross rent | $838This ZIP$838Kentucky$967US $1,413 |
| Bachelor's degree or higher | 23.4%This ZIP23.4% |
| Mean commute | 18.6 minThis ZIP18.6 min |
| Population density | 195.7 / sq miThis ZIP195.7 / sq mi |
Business and tax activity
| Business establishments | 496This ZIP496 |
|---|---|
| Employees | 8,471This ZIP8,471 |
| Annual payroll | $416,967,000This ZIP$416,967,000 |
| Tax returns filed | 10,390This ZIP10,390 |
| Total adjusted gross income | $772,330,000This ZIP$772,330,000 |
Land area
| Land area | 129.41 sq miThis ZIP129.41 sq mi |
|---|---|
| Water area | 4.03 sq miThis ZIP4.03 sq mi |
Other place names in 42503
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 42503
| ZIP | City | Distance |
|---|---|---|
42564 | West Somerset, KY | 5.2 mi |
42502 | Somerset, KY | 6.5 mi |
42533 | Ferguson, KY | 7.2 mi |
42501 | Somerset, KY | 8.0 mi |
42567 | Eubank, KY | 8.8 mi |
42553 | Science Hill, KY | 9.9 mi |
42519 | Burnside, KY | 14.0 mi |
42558 | Tateville, KY | 14.8 mi |
42516 | Bethelridge, KY | 15.2 mi |
40409 | Brodhead, KY | 15.3 mi |
Find every ZIP code within 10 miles of 42503 →
Questions about this ZIP code
Where is ZIP code 42503?
42503 is in Somerset, Kentucky, in Pulaski County, part of the Somerset, KY micropolitan area. Its published point location is 37.1580, -84.5197.
What county is 42503 in?
42503 lies in Pulaski County.
What area code is 42503?
Somerset uses area code 606, from NANPA's telephone records.
What time zone is 42503 in?
42503 uses America/New_York.
How many people live in 42503?
About 25,321 people live in ZIP code 42503, in 10,272 households, at 195.7 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 42503?
$54,707 a year, against $63,726 across Kentucky.
What ZIP codes are near 42503?
The closest are 42564 (5.2 mi), 42502 (6.5 mi), 42533 (7.2 mi), 42501 (8 mi) and 42567 (8.8 mi).
Is 42503 a PO Box ZIP code?
42503 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “42503 ZIP Code — Somerset, Kentucky (Pulaski County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/42503
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/42503.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.