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/94020

94020

ZIP 94020 is La Honda, California, in San Mateo County; area code 650; Pacific time.

Type
Standard
Time zone
America/Los_Angeles
County
San Mateo
Population
1,694
Coordinates
37.2690, -122.2215
☼ Live from 94020 — La Honda, CA

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 94020 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 94020
  • 🔢 Type 94020 into a pocket calculator and turn it upside down: OZOhG — not quite a word, sorry.
  • ➕ As a number, 94,020 = 2 × 2 × 3 × 5 × 1567. Its digits add up to 15, a total 1,657 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110111101000100
  • 🏠 Its numerical neighbours: 94019 (Half Moon Bay, CA, 16 mi away) and 94021 (Loma Mar, CA, 2 mi away).
  • 🔄 Backwards, 94020 becomes 02049, which is not a ZIP code at all.
  • 👥 26 other ZIP codes are made of exactly the same digits (00924, 02904, 02940, 04029, 04092, 04290, …). The farthest-flung twin is 09420 in FPO AE, a military post office, 5,207 miles away.
  • 🧭 Farther south than 63% of all ZIP codes, and farther west than 96%.
  • 🎯1,286 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 94020 and you would come out at 37.27°S, 57.78°E — 1,040 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 36m.
  • 📏 At 42.0 square miles of land, 94020 is bigger than 55% of ZIP codes — room for about 32 Central Parks.
🌙 The sky over 94020 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,694This ZIP1,694
Households829This ZIP829
Housing units1,008This ZIP1,008
Median age46.8This ZIP46.8California37.9US 38.9
Median household income$250,000+This ZIP$250,000+California$99,122US $80,734
Median home value$995,900This ZIP$995,900California$734,700US $332,700
Median gross rent$1,715This ZIP$1,715California$2,036US $1,413
Bachelor's degree or higher73.8%This ZIP73.8%
Mean commute39.5 minThis ZIP39.5 min
Population density40.4 / sq miThis ZIP40.4 / sq mi

Business and tax activity

Business establishments32This ZIP32
Employees164This ZIP164
Annual payroll$9,123,000This ZIP$9,123,000
Tax returns filed730This ZIP730
Total adjusted gross income$112,000,000This ZIP$112,000,000

Land area

Land area41.97 sq miThis ZIP41.97 sq mi
Water area0.02 sq miThis ZIP0.02 sq mi

Other place names in 94020

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

ZIP codes near 94020

ZIPCityDistance
94021 Loma Mar, CA 2.0 mi
94060 Pescadero, CA 3.2 mi
94022 Los Altos, CA 7.3 mi
94028 Portola Valley, CA 7.3 mi
95006 Boulder Creek, CA 7.8 mi
94074 San Gregorio, CA 7.9 mi
95014 Cupertino, CA 8.1 mi
94024 Los Altos, CA 8.8 mi
94304 Palo Alto, CA 9.4 mi
95070 Saratoga, CA 9.4 mi

Find every ZIP code within 10 miles of 94020 →

Questions about this ZIP code

Where is ZIP code 94020?

94020 is in La Honda, California, in San Mateo County, part of the San Francisco-Oakland-Fremont, CA metropolitan area. Its published point location is 37.2690, -122.2215.

What county is 94020 in?

94020 lies in San Mateo County.

What area code is 94020?

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

What time zone is 94020 in?

94020 uses America/Los_Angeles.

How many people live in 94020?

About 1,694 people live in ZIP code 94020, in 829 households, at 40.4 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 94020?

$250,000+ a year, against $99,122 across California.

What ZIP codes are near 94020?

The closest are 94021 (2 mi), 94060 (3.2 mi), 94022 (7.3 mi), 94028 (7.3 mi) and 95006 (7.8 mi).

Is 94020 a PO Box ZIP code?

94020 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “94020 ZIP Code — La Honda, California (San Mateo County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/94020

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/94020.json

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