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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/94939

94939

ZIP 94939 is in Larkspur, California, in Marin County; area codes 415 and 628; Pacific time. Larkspur has 2 ZIP codes; the other is 94977.

Type
Standard
Time zone
America/Los_Angeles
County
Marin
Population
7,315
Coordinates
37.9383, -122.5359
☼ Live from 94939 — Larkspur, CA

Weather right now

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Local time: —

Where 94939 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 94939
  • 🔢 Type 94939 into a pocket calculator and turn it upside down: GEGhG — not quite a word, sorry.
  • ➕ As a number, 94,939 = 13 × 67 × 109. Its digits add up to 34, a total 322 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10111001011011011
  • 🏠 Its numerical neighbours: 94938 (Lagunitas, CA, 12 mi away) and 94940 (Marshall, CA, 27 mi away).
  • 🔄 Backwards, 94939 becomes 93949, which is not a ZIP code at all.
  • 👥 1 other ZIP code is made of exactly the same digits (99349). The farthest-flung twin is 99349 in Mattawa, WA, 624 miles away.
  • 🧭 Farther south than 59% of all ZIP codes, and farther west than 97%.
  • 🎯1,291 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 94939 and you would come out at 37.94°S, 57.46°E — 1,011 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 48m of daylight. Shortest: 9h 32m.
  • 📏 At 2.4 square miles of land, 94939 is bigger than 13% of ZIP codes — room for about 1.8 Central Parks.
🌙 The sky over 94939 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population7,315This ZIP7,315
Households3,323This ZIP3,323
Housing units3,676This ZIP3,676
Median age48.4This ZIP48.4California37.9US 38.9
Median household income$203,988This ZIP$203,988California$99,122US $80,734
Median home value$2,000,000+This ZIP$2,000,000+California$734,700US $332,700
Median gross rent$3,278This ZIP$3,278California$2,036US $1,413
Bachelor's degree or higher70.7%This ZIP70.7%
Mean commute27.5 minThis ZIP27.5 min
Population density3,099.6 / sq miThis ZIP3,099.6 / sq mi

Business and tax activity

Business establishments404This ZIP404
Employees5,155This ZIP5,155
Annual payroll$526,291,000This ZIP$526,291,000
Tax returns filed3,570This ZIP3,570
Total adjusted gross income$1,204,661,000This ZIP$1,204,661,000

Land area

Land area2.36 sq miThis ZIP2.36 sq mi
Water area0.19 sq miThis ZIP0.19 sq mi

Other place names in 94939

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

ZIP codes near 94939

ZIPCityDistance
94977 Larkspur, CA 0.3 mi
94976 Corte Madera, CA 1.0 mi
94904 Greenbrae, CA 1.1 mi
94914 Kentfield, CA 1.5 mi
94925 Corte Madera, CA 1.6 mi
94957 Ross, CA 2.2 mi
94942 Mill Valley, CA 2.3 mi
94912 San Rafael, CA 2.4 mi
94913 San Rafael, CA 2.4 mi
94964 San Quentin, CA 2.5 mi

Find every ZIP code within 10 miles of 94939 →

Questions about this ZIP code

Where is ZIP code 94939?

94939 is in Larkspur, California, in Marin County, part of the San Francisco-Oakland-Fremont, CA metropolitan area. Its published point location is 37.9383, -122.5359.

What county is 94939 in?

94939 lies in Marin County.

What area code is 94939?

Larkspur uses area codes 415 and 628, from NANPA's telephone records.

What time zone is 94939 in?

94939 uses America/Los_Angeles.

How many people live in 94939?

About 7,315 people live in ZIP code 94939, in 3,323 households, at 3,099.6 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 94939?

$203,988 a year, against $99,122 across California.

What ZIP codes are near 94939?

The closest are 94977 (0.3 mi), 94976 (1 mi), 94904 (1.1 mi), 94914 (1.5 mi) and 94925 (1.6 mi).

Is 94939 a PO Box ZIP code?

94939 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “94939 ZIP Code — Larkspur, California (Marin County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/94939

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