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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/CA/MOUNT-HAMILTON

Mount Hamilton ZIP code, California

The ZIP code for Mount Hamilton, CA is 95140, and its area codes are 408 and 669.

USPS city name
1 ZIP code
Population
42
Area codes
408, 669

NANPA lists no telephone rate centre for Mount Hamilton itself, so these are the area codes of the nearest one, San Jose (7.8 miles). A town on an area-code boundary can differ from its neighbour.

ZIP codes addressed as Mount Hamilton

ZIP codes with the USPS city name Mount Hamilton
ZIP City Type Population Median income Median home
95140 Mount Hamilton , CA Standard 42 $163,594 —

Map of Mount Hamilton ZIP codes

The ZIP codes of Mount Hamilton, CA, 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 Mount Hamilton

The nearest larger towns are East Foothills (7,139 people, 9.7 mi), Alum Rock (10,440 people, 10 mi) and San Jose (990,138 people, 10 mi).

Towns near Mount Hamilton
TownPopulationDistance
East Foothills 7,139 9.7 mi
Alum Rock 10,440 10.1 mi
San Jose 990,138 10.3 mi
Milpitas 78,578 14.8 mi
Morgan Hill 45,425 15.1 mi
Burbank 5,333 16.1 mi
Cambrian Park 3,494 17.1 mi
Campbell 42,781 17.9 mi
Santa Clara 130,256 18.0 mi
San Martin 6,954 18.7 mi
Fremont 228,295 19.2 mi
Los Gatos 32,786 19.3 mi
Monte Sereno 3,461 20.6 mi
Sunnyvale 154,236 21.3 mi

More nearby: every ZIP code in Santa Clara County · California ZIP codes

Cite this page

zipcodes.pro. “Mount Hamilton, CA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ca/mount-hamilton

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