Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/KY/THORNHILL

Thornhill ZIP codes, Kentucky

No ZIP code is named for Thornhill, KY; addresses there use a neighbouring town's name. The ZIP code covering it is 40222. Its area code is 502.

USPS city name
0 ZIP codes
Overlapping the city
1 more
Population
192
Area code
502

NANPA lists no telephone rate centre for Thornhill itself, so these are the area codes of the nearest one, Louisville (0.0 miles). A town on an area-code boundary can differ from its neighbour.

ZIP codes covering Thornhill

These ZIP codes cover part of Thornhill but are addressed as somewhere else.

ZIP codes overlapping Thornhill
ZIP City Type Population Median income Median home
40222 Louisville , KY Standard 21,470 $82,511 $363,000

Map of Thornhill ZIP codes

40222

The ZIP codes of Thornhill, KY, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Thornhill

The nearest larger towns are Northfield (1,250 people, 0.6 mi), Old Brownsboro Place (332 people, 0.7 mi) and Bancroft (479 people, 0.8 mi).

Towns near Thornhill
TownPopulationDistance
Graymoor-Devondale 2,802 1.1 mi
Indian Hills 2,897 2.5 mi
Lyndon 11,030 2.6 mi
St. Matthews 17,577 2.7 mi
Hurstbourne 4,702 3.8 mi
Prospect 4,542 4.2 mi
Anchorage 2,506 4.9 mi
Jeffersonville, IN 51,043 4.9 mi
Douglass Hills 5,474 5.3 mi
Jeffersontown 29,199 6.4 mi
Middletown 9,763 6.5 mi
Clarksville, IN 22,016 8.1 mi
Louisville/Jefferson County metro government 631,818 8.5 mi
Crestwood 6,356 8.9 mi

More nearby: every ZIP code in Jefferson County · Kentucky ZIP codes

Cite this page

zipcodes.pro. “Thornhill, KY ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ky/thornhill

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