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 — ZIP/94040

94040

ZIP 94040 is in Mountain View, California, in Santa Clara County; area code 650; Pacific time. Mountain View has 6 ZIP codes; the others are 94035, 94039, 94041, 94042 and 94043.

Type
Standard
Time zone
America/Los_Angeles
County
Santa Clara
Population
35,632
Coordinates
37.3803, -122.0852
☼ Live from 94040 — Mountain View, CA

Weather right now

Asking the National Weather Service…

NEXRAD radar
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Local time: —

Where 94040 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.

★ Weird and wonderful facts about 94040
  • 🔢 Type 94040 into a pocket calculator and turn it upside down: OhOhG — not quite a word, sorry.
  • ➕ As a number, 94,040 = 2 × 2 × 2 × 5 × 2351. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110111101011000
  • 🏠 Its numerical neighbours: 94039 (Mountain View, CA, 0 mi away) and 94041 (Mountain View, CA, 1 mi away).
  • 🔄 Backwards, 94040 becomes 04049 — and that is a real ZIP code: Limington, ME, 2,689 miles away.
  • 👥 13 other ZIP codes are made of exactly the same digits (04049, 04094, 04490, 04940, 09044, 40049, …). The farthest-flung twin is 09044 in APO AE, a military post office, 5,774 miles away.
  • 🧭 Farther south than 62% of all ZIP codes, and farther west than 96%.
  • 🎯1,277 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 94040 and you would come out at 37.38°S, 57.91°E — 1,030 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 44m of daylight. Shortest: 9h 35m.
  • 📏 At 3.7 square miles of land, 94040 is bigger than 16% of ZIP codes — room for about 2.8 Central Parks.
🌙 The sky over 94040 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population35,632This ZIP35,632
Households15,754This ZIP15,754
Housing units17,302This ZIP17,302
Median age35.6This ZIP35.6California37.9US 38.9
Median household income$187,781This ZIP$187,781California$99,122US $80,734
Median home value$2,000,000+This ZIP$2,000,000+California$734,700US $332,700
Median gross rent$3,089This ZIP$3,089California$2,036US $1,413
Bachelor's degree or higher78.3%This ZIP78.3%
Mean commute23.9 minThis ZIP23.9 min
Population density9,735.5 / sq miThis ZIP9,735.5 / sq mi

Business and tax activity

Business establishments1,014This ZIP1,014
Employees17,272This ZIP17,272
Annual payroll$2,018,468,000This ZIP$2,018,468,000
Tax returns filed17,840This ZIP17,840
Total adjusted gross income$4,613,496,000This ZIP$4,613,496,000

Land area

Land area3.66 sq miThis ZIP3.66 sq mi
Water area0.00 sq mi

Other place names in 94040

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 94040

ZIPCityDistance
94035 Mountain View, CA 0.4 mi
94039 Mountain View, CA 0.4 mi
94042 Mountain View, CA 0.4 mi
94041 Mountain View, CA 0.8 mi
94023 Los Altos, CA 1.6 mi
94024 Los Altos, CA 2.2 mi
94043 Mountain View, CA 2.4 mi
94088 Sunnyvale, CA 2.8 mi
94087 Sunnyvale, CA 3.3 mi
94086 Sunnyvale, CA 3.5 mi

Find every ZIP code within 10 miles of 94040 →

Questions about this ZIP code

Where is ZIP code 94040?

94040 is in Mountain View, California, in Santa Clara County, part of the San Jose-Sunnyvale-Santa Clara, CA metropolitan area. Its published point location is 37.3803, -122.0852.

What county is 94040 in?

94040 lies in Santa Clara County.

What area code is 94040?

Mountain View uses area code 650, from NANPA's telephone records.

What time zone is 94040 in?

94040 uses America/Los_Angeles.

How many people live in 94040?

About 35,632 people live in ZIP code 94040, in 15,754 households, at 9,735.5 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 94040?

$187,781 a year, against $99,122 across California.

What ZIP codes are near 94040?

The closest are 94035 (0.4 mi), 94039 (0.4 mi), 94042 (0.4 mi), 94041 (0.8 mi) and 94023 (1.6 mi).

Is 94040 a PO Box ZIP code?

94040 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “94040 ZIP Code — Mountain View, California (Santa Clara County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/94040

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