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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/93401

93401

ZIP 93401 is in San Luis Obispo, California, in San Luis Obispo County; area codes 805 and 820; Pacific time. San Luis Obispo has 8 ZIP codes in all.

Type
Standard
Time zone
America/Los_Angeles
Population
29,202
Coordinates
35.2359, -120.6159
☼ Live from 93401 — San Luis Obispo, CA

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Local time: —

Where 93401 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 93401
  • 🔢 Type 93401 into a pocket calculator and turn it upside down: IOhEG — not quite a word, sorry.
  • ➕ As a number, 93,401 = 7 × 11 × 1213. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110110011011001
  • 🏠 Its numerical neighbours: 93390 (Bakersfield, CA, 97 mi away) and 93402 (Los Osos, CA, 13 mi away).
  • 🔄 Backwards, 93401 becomes 10439, which is not a ZIP code at all.
  • 👥 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, 5,753 miles away.
  • 🧭 Farther south than 73% of all ZIP codes, and farther west than 94%.
  • 🎯1,245 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 93401 and you would come out at 35.24°S, 59.38°E — 1,020 miles from Saint-Denis, Reunion, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 32m of daylight. Shortest: 9h 47m.
  • 📏 At 64.2 square miles of land, 93401 is bigger than 66% of ZIP codes — room for about 49 Central Parks.
🌙 The sky over 93401 today
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🌋 Shake report
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Source: USGS.

People and housing

Population29,202This ZIP29,202
Households13,522This ZIP13,522
Housing units14,459This ZIP14,459
Median age37.1This ZIP37.1California37.9US 38.9
Median household income$96,824This ZIP$96,824California$99,122US $80,734
Median home value$973,000This ZIP$973,000California$734,700US $332,700
Median gross rent$1,912This ZIP$1,912California$2,036US $1,413
Bachelor's degree or higher55.9%This ZIP55.9%
Mean commute17.3 minThis ZIP17.3 min
Population density455.1 / sq miThis ZIP455.1 / sq mi

Business and tax activity

Business establishments2,161This ZIP2,161
Employees31,306This ZIP31,306
Annual payroll$2,356,340,000This ZIP$2,356,340,000
Tax returns filed15,080This ZIP15,080
Total adjusted gross income$1,859,974,000This ZIP$1,859,974,000

Land area

Land area64.17 sq miThis ZIP64.17 sq mi
Water area0.02 sq miThis ZIP0.02 sq mi

Other place names in 93401

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

ZIP codes near 93401

ZIPCityDistance
93403 San Luis Obispo, CA 4.1 mi
93406 San Luis Obispo, CA 4.1 mi
93410 San Luis Obispo, CA 5.3 mi
93449 Pismo Beach, CA 5.6 mi
93407 San Luis Obispo, CA 5.7 mi
93448 Pismo Beach, CA 6.6 mi
93409 San Luis Obispo, CA 7.6 mi
93483 Grover Beach, CA 7.9 mi
93433 Grover Beach, CA 7.9 mi
93405 San Luis Obispo, CA 8.1 mi

Find every ZIP code within 10 miles of 93401 →

Questions about this ZIP code

Where is ZIP code 93401?

93401 is in San Luis Obispo, California, in San Luis Obispo County, part of the San Luis Obispo-Paso Robles, CA metropolitan area. Its published point location is 35.2359, -120.6159.

What county is 93401 in?

93401 lies in San Luis Obispo County.

What area code is 93401?

San Luis Obispo uses area codes 805 and 820, from NANPA's telephone records.

What time zone is 93401 in?

93401 uses America/Los_Angeles.

How many people live in 93401?

About 29,202 people live in ZIP code 93401, in 13,522 households, at 455.1 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 93401?

$96,824 a year, against $99,122 across California.

What ZIP codes are near 93401?

The closest are 93403 (4.1 mi), 93406 (4.1 mi), 93410 (5.3 mi), 93449 (5.6 mi) and 93407 (5.7 mi).

Is 93401 a PO Box ZIP code?

93401 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “93401 ZIP Code — San Luis Obispo, California (San Luis Obispo County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/93401

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