Clay, KY ZIP Code

ZIP code, county, time zone and coordinates of Clay, Kentucky

The ZIP code of Clay, KY is 42404. It is in Webster County.

Mailing address format for Clay

John Smith
123 Main St
CLAY KY 42404
USA

USPS prefers capital letters without punctuation. Check the exact ZIP+4 for a street address on the USPS website.

ZIP code	Population	Area
42404	—	87.7 sq mi	Main

ZIP Code Tabulation Areas (ZCTA), U.S. Census Bureau. A ZCTA can cover parts of more than one town.

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What is the ZIP code for Clay, KY?

The main ZIP code for Clay, KY is 42404.

How many ZIP codes does Clay have?

Clay has 1 ZIP code.

What county is Clay, KY in?

Clay is in Webster County, Kentucky.

What time zone is Clay in?

Clay is in the America/Chicago time zone (CST, UTC-06:00 right now).

What are the coordinates of Clay?

Latitude 37.47586, longitude -87.82031.

Last updated: November 14, 2026