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/GRAY

Gray ZIP code, Kentucky

The ZIP code for Gray, KY is 40734, and its area code is 606.

USPS city name
1 ZIP code
Population
3,602
Area code
606

NANPA lists no telephone rate centre for Gray itself, so these are the area codes of the nearest one, Barbourville (6.2 miles). A town on an area-code boundary can differ from its neighbour.

Gray in numbers

About 3,602 people live in Gray, in 1,300 households. The median household income is $42,500 a year, 33% below the Kentucky median of $63,726 (US: $80,734). The median owner-occupied home is valued at $131,700 (36% below the Kentucky median).

Population3,602Gray3,602
Households1,300Gray1,300
Median household income$42,500Gray$42,500Kentucky$63,726US $80,734
Median home value$131,700Gray$131,700Kentucky$205,600US $332,700

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the ZIP code addressed as Gray. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Gray

ZIP codes with the USPS city name Gray
ZIP City Type Population Median income Median home
40734 Gray , KY Standard 3,602 $42,500 $131,700

Map of Gray ZIP codes

40734

The ZIP codes of Gray, 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 Gray

The nearest larger towns are Corbin (8,246 people, 6.9 mi), London (7,561 people, 14 mi) and Williamsburg (5,270 people, 17 mi).

Towns near Gray
TownPopulationDistance
Barbourville 3,146 6.7 mi
Corbin 8,246 6.9 mi
London 7,561 13.8 mi
Williamsburg 5,270 16.9 mi
Middlesborough 9,123 26.0 mi

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

Cite this page

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

Underlying data is public domain or openly licensed — sources, vintages and licences.