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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/94103

94103

ZIP 94103 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
34,964
Coordinates
37.7730, -122.4113
☼ Live from 94103 — San Francisco, CA

Weather right now

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Local time: —

Where 94103 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 94103
  • 🔢 Type 94103 into a pocket calculator and turn it upside down: EOIhG — not quite a word, sorry.
  • ➕ As a number, 94,103 = 139 × 677. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110111110010111
  • 🏠 Its numerical neighbours: 94102 (San Francisco, CA, 1 mi away) and 94104 (San Francisco, CA, 1 mi away).
  • 🔄 Backwards, 94103 becomes 30149 — and that is a real ZIP code: Mount Berry, GA, 2,078 miles away.
  • 👥 50 other ZIP codes are made of exactly the same digits (01349, 09143, 13409, 13490, 13904, 14039, …). The farthest-flung twin is 09143 in APO AE, a military post office, 5,649 miles away.
  • 🧭 Farther south than 60% of all ZIP codes, and farther west than 97%.
  • 🎯1,287 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 94103 and you would come out at 37.77°S, 57.59°E — 1,017 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 1.4 square miles of land, 94103 is bigger than 10% of ZIP codes — room for about 1.0 Central Parks.
🌙 The sky over 94103 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population34,964This ZIP34,964
Households17,952This ZIP17,952
Housing units21,609This ZIP21,609
Median age37.6This ZIP37.6California37.9US 38.9
Median household income$116,438This ZIP$116,438California$99,122US $80,734
Median home value$1,022,800This ZIP$1,022,800California$734,700US $332,700
Median gross rent$2,218This ZIP$2,218California$2,036US $1,413
Bachelor's degree or higher54.2%This ZIP54.2%
Mean commute27.7 minThis ZIP27.7 min
Population density25,446.9 / sq miThis ZIP25,446.9 / sq mi

Business and tax activity

Business establishments2,584This ZIP2,584
Employees86,959This ZIP86,959
Annual payroll$16,291,209,000This ZIP$16,291,209,000
Tax returns filed17,770This ZIP17,770
Total adjusted gross income$2,554,450,000This ZIP$2,554,450,000

Land area

Land area1.37 sq miThis ZIP1.37 sq mi
Water area0.00 sq mi

Other place names in 94103

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

ZIP codes near 94103

ZIPCityDistance
94119 San Francisco, CA 0.5 mi
94120 San Francisco, CA 0.5 mi
94125 San Francisco, CA 0.5 mi
94126 San Francisco, CA 0.5 mi
94137 San Francisco, CA 0.5 mi
94139 San Francisco, CA 0.5 mi
94140 San Francisco, CA 0.5 mi
94141 San Francisco, CA 0.5 mi
94142 San Francisco, CA 0.5 mi
94144 San Francisco, CA 0.5 mi

Find every ZIP code within 10 miles of 94103 →

Questions about this ZIP code

Where is ZIP code 94103?

94103 is in San Francisco, California, in San Francisco County, part of the San Francisco-Oakland-Fremont, CA metropolitan area. Its published point location is 37.7730, -122.4113.

What county is 94103 in?

94103 lies in San Francisco County.

What area code is 94103?

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

What time zone is 94103 in?

94103 uses America/Los_Angeles.

How many people live in 94103?

About 34,964 people live in ZIP code 94103, in 17,952 households, at 25,446.9 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 94103?

$116,438 a year, against $99,122 across California.

What ZIP codes are near 94103?

The closest are 94119 (0.5 mi), 94120 (0.5 mi), 94125 (0.5 mi), 94126 (0.5 mi) and 94137 (0.5 mi).

Is 94103 a PO Box ZIP code?

94103 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “94103 ZIP Code — San Francisco, California (San Francisco County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/94103

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