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/94306

94306

ZIP 94306 is in Palo Alto, California, in Santa Clara County; area code 650; Pacific time. Palo Alto has 6 ZIP codes; the others are 94301, 94302, 94303, 94304 and 94309.

Type
Standard
Time zone
America/Los_Angeles
County
Santa Clara
Population
27,183
Coordinates
37.4162, -122.1309
☼ Live from 94306 — Palo Alto, CA

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Where 94306 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 94306
  • 🔢 Type 94306 into a pocket calculator and turn it upside down: gOEhG — not quite a word, sorry.
  • ➕ As a number, 94,306 = 2 × 61 × 773. Its digits add up to 22, a total 2,607 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10111000001100010
  • 🏠 Its numerical neighbours: 94305 (Stanford, CA, 2 mi away) and 94309 (Palo Alto, CA, 2 mi away).
  • 🔄 Backwards, 94306 becomes 60349, which is not a ZIP code at all.
  • 👥 43 other ZIP codes are made of exactly the same digits (03469, 04693, 04936, 04963, 06349, 06439, …). The farthest-flung twin is 09643 in APO AE, a military post office, 5,795 miles away.
  • 🧭 Farther south than 62% of all ZIP codes, and farther west than 96%.
  • 🎯1,278 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 94306 and you would come out at 37.42°S, 57.87°E — 1,029 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 45m of daylight. Shortest: 9h 35m.
  • 📏 At 4.1 square miles of land, 94306 is bigger than 17% of ZIP codes — room for about 3.1 Central Parks.
🌙 The sky over 94306 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population27,183This ZIP27,183
Households10,640This ZIP10,640
Housing units11,744This ZIP11,744
Median age42.3This ZIP42.3California37.9US 38.9
Median household income$210,000This ZIP$210,000California$99,122US $80,734
Median home value$2,000,000+This ZIP$2,000,000+California$734,700US $332,700
Median gross rent$2,994This ZIP$2,994California$2,036US $1,413
Bachelor's degree or higher80.9%This ZIP80.9%
Mean commute22.0 minThis ZIP22.0 min
Population density6,654.3 / sq miThis ZIP6,654.3 / sq mi

Business and tax activity

Business establishments1,079This ZIP1,079
Employees16,926This ZIP16,926
Annual payroll$2,798,946,000This ZIP$2,798,946,000
Tax returns filed13,250This ZIP13,250
Total adjusted gross income$4,904,765,000This ZIP$4,904,765,000

Land area

Land area4.09 sq miThis ZIP4.09 sq mi
Water area0.00 sq mi

Other place names in 94306

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

ZIP codes near 94306

ZIPCityDistance
94302 Palo Alto, CA 1.9 mi
94309 Palo Alto, CA 1.9 mi
94301 Palo Alto, CA 2.2 mi
94305 Stanford, CA 2.2 mi
94023 Los Altos, CA 2.3 mi
94304 Palo Alto, CA 2.4 mi
94303 Palo Alto, CA 3.0 mi
94035 Mountain View, CA 3.3 mi
94039 Mountain View, CA 3.3 mi
94042 Mountain View, CA 3.3 mi

Find every ZIP code within 10 miles of 94306 →

Questions about this ZIP code

Where is ZIP code 94306?

94306 is in Palo Alto, California, in Santa Clara County, part of the San Jose-Sunnyvale-Santa Clara, CA metropolitan area. Its published point location is 37.4162, -122.1309.

What county is 94306 in?

94306 lies in Santa Clara County.

What area code is 94306?

Palo Alto uses area code 650, from NANPA's telephone records.

What time zone is 94306 in?

94306 uses America/Los_Angeles.

How many people live in 94306?

About 27,183 people live in ZIP code 94306, in 10,640 households, at 6,654.3 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 94306?

$210,000 a year, against $99,122 across California.

What ZIP codes are near 94306?

The closest are 94302 (1.9 mi), 94309 (1.9 mi), 94301 (2.2 mi), 94305 (2.2 mi) and 94023 (2.3 mi).

Is 94306 a PO Box ZIP code?

94306 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “94306 ZIP Code — Palo Alto, California (Santa Clara County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/94306

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