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/94104

94104

ZIP 94104 is in San Francisco, California, in San Francisco County; area codes 415 and 628; Pacific time. San Francisco has 51 ZIP codes in all.

Type
Standard
Time zone
America/Los_Angeles
County
San Francisco
Population
498
Coordinates
37.7914, -122.4021
☼ Live from 94104 — San Francisco, CA

Weather right now

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Local time: —

Where 94104 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 94104
  • 🔢 Type 94104 into a pocket calculator and turn it upside down: hOIhG — not quite a word, sorry.
  • ➕ As a number, 94,104 = 2 × 2 × 2 × 3 × 3 × 1307. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110111110011000
  • 🏠 Its numerical neighbours: 94103 (San Francisco, CA, 1 mi away) and 94105 (San Francisco, CA, 0 mi away).
  • 🔄 Backwards, 94104 becomes 40149, which is not a ZIP code at all.
  • 👥 28 other ZIP codes are made of exactly the same digits (01944, 04419, 04491, 04941, 09144, 14094, …). The farthest-flung twin is 09144 in APO AE, a military post office, 5,665 miles away.
  • 🧭 Farther south than 60% 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 94104 and you would come out at 37.79°S, 57.60°E — 1,015 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 47m of daylight. Shortest: 9h 33m.
  • 📏 At 0.078 square miles of land, 94104 is bigger than 1% of ZIP codes — about 38 football fields.
🌙 The sky over 94104 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population498This ZIP498
Households260This ZIP260
Housing units301This ZIP301
Median age58.1This ZIP58.1California37.9US 38.9
Median gross rent$773This ZIP$773California$2,036US $1,413
Bachelor's degree or higher47.0%This ZIP47.0%
Mean commute30.8 minThis ZIP30.8 min
Population density6,384.6 / sq miThis ZIP6,384.6 / sq mi

Business and tax activity

Business establishments2,153This ZIP2,153
Employees82,128This ZIP82,128
Annual payroll$15,631,475,000This ZIP$15,631,475,000
Tax returns filed800This ZIP800
Total adjusted gross income$720,188,000This ZIP$720,188,000

Land area

Land area0.08 sq miThis ZIP0.08 sq mi
Water area0.00 sq mi

Other place names in 94104

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

ZIP codes near 94104

ZIPCityDistance
94108 San Francisco, CA 0.4 mi
94105 San Francisco, CA 0.5 mi
94111 San Francisco, CA 0.5 mi
94133 San Francisco, CA 0.9 mi
94109 San Francisco, CA 1.1 mi
94102 San Francisco, CA 1.2 mi
94103 San Francisco, CA 1.4 mi
94119 San Francisco, CA 1.5 mi
94120 San Francisco, CA 1.5 mi
94125 San Francisco, CA 1.5 mi

Find every ZIP code within 10 miles of 94104 →

Questions about this ZIP code

Where is ZIP code 94104?

94104 is in San Francisco, California, in San Francisco County, part of the San Francisco-Oakland-Fremont, CA metropolitan area. Its published point location is 37.7914, -122.4021.

What county is 94104 in?

94104 lies in San Francisco County.

What area code is 94104?

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

What time zone is 94104 in?

94104 uses America/Los_Angeles.

How many people live in 94104?

About 498 people live in ZIP code 94104, in 260 households, at 6,384.6 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What ZIP codes are near 94104?

The closest are 94108 (0.4 mi), 94105 (0.5 mi), 94111 (0.5 mi), 94133 (0.9 mi) and 94109 (1.1 mi).

Is 94104 a PO Box ZIP code?

94104 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “94104 ZIP Code — San Francisco, California (San Francisco County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/94104

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