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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 — ZIP/94305

94305

ZIP 94305 is Stanford, California, in Santa Clara County; area code 650; Pacific time.

Type
Standard
Time zone
America/Los_Angeles
County
Santa Clara
Population
18,509
Coordinates
37.4183, -122.1709
☼ Live from 94305 — Stanford, CA

Weather right now

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Where 94305 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 94305
  • 🔢 Type 94305 into a pocket calculator and turn it upside down: SOEhG — not quite a word, sorry.
  • ➕ As a number, 94,305 = 3 × 5 × 6287. Its digits add up to 21, a total 2,594 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10111000001100001
  • 🏠 Its numerical neighbours: 94304 (Palo Alto, CA, 1 mi away) and 94306 (Palo Alto, CA, 2 mi away).
  • 🔄 Backwards, 94305 becomes 50349, which is not a ZIP code at all.
  • 👥 52 other ZIP codes are made of exactly the same digits (04359, 04539, 04935, 04953, 05439, 09354, …). The farthest-flung twin is 09354 in APO AE, a military post office, 5,452 miles away.
  • 🧭 Farther south than 62% of all ZIP codes, and farther west than 96%.
  • 🎯1,281 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 94305 and you would come out at 37.42°S, 57.83°E — 1,030 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 4.8 square miles of land, 94305 is bigger than 18% of ZIP codes — room for about 3.6 Central Parks.
🌙 The sky over 94305 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population18,509This ZIP18,509
Households3,264This ZIP3,264
Housing units4,002This ZIP4,002
Median age21.9This ZIP21.9California37.9US 38.9
Median household income$83,088This ZIP$83,088California$99,122US $80,734
Median home value$2,000,000+This ZIP$2,000,000+California$734,700US $332,700
Median gross rent$2,014This ZIP$2,014California$2,036US $1,413
Bachelor's degree or higher92.2%This ZIP92.2%
Mean commute14.5 minThis ZIP14.5 min
Population density3,872.2 / sq miThis ZIP3,872.2 / sq mi

Business and tax activity

Business establishments115This ZIP115
Employees54,779This ZIP54,779
Annual payroll$6,558,292,000This ZIP$6,558,292,000
Tax returns filed3,520This ZIP3,520
Total adjusted gross income$800,584,000This ZIP$800,584,000

Land area

Land area4.78 sq miThis ZIP4.78 sq mi
Water area0.05 sq miThis ZIP0.05 sq mi

Other place names in 94305

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

ZIP codes near 94305

ZIPCityDistance
94304 Palo Alto, CA 1.5 mi
94301 Palo Alto, CA 2.1 mi
94306 Palo Alto, CA 2.2 mi
94302 Palo Alto, CA 2.2 mi
94309 Palo Alto, CA 2.2 mi
94025 Menlo Park, CA 2.4 mi
94027 Atherton, CA 3.2 mi
94028 Portola Valley, CA 3.8 mi
94023 Los Altos, CA 3.9 mi
94303 Palo Alto, CA 4.1 mi

Find every ZIP code within 10 miles of 94305 →

Questions about this ZIP code

Where is ZIP code 94305?

94305 is in Stanford, California, in Santa Clara County, part of the San Jose-Sunnyvale-Santa Clara, CA metropolitan area. Its published point location is 37.4183, -122.1709.

What county is 94305 in?

94305 lies in Santa Clara County.

What area code is 94305?

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

What time zone is 94305 in?

94305 uses America/Los_Angeles.

How many people live in 94305?

About 18,509 people live in ZIP code 94305, in 3,264 households, at 3,872.2 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 94305?

$83,088 a year, against $99,122 across California.

What ZIP codes are near 94305?

The closest are 94304 (1.5 mi), 94301 (2.1 mi), 94306 (2.2 mi), 94302 (2.2 mi) and 94309 (2.2 mi).

Is 94305 a PO Box ZIP code?

94305 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “94305 ZIP Code — Stanford, California (Santa Clara County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/94305

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