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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/93405

93405

ZIP 93405 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
25,002
Coordinates
35.3005, -120.7348
☼ Live from 93405 — San Luis Obispo, CA

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Local time: —

Where 93405 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 93405
  • 🔢 Type 93405 into a pocket calculator and turn it upside down: SOhEG — not quite a word, sorry.
  • ➕ As a number, 93,405 = 3 × 5 × 13 × 479. Its digits add up to 21, a total 2,594 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110110011011101
  • 🏠 Its numerical neighbours: 93403 (San Luis Obispo, CA, 4 mi away) and 93406 (San Luis Obispo, CA, 4 mi away).
  • 🔄 Backwards, 93405 becomes 50439 — and that is a real ZIP code: Goodell, IA, 1,538 miles away.
  • 👥 52 other ZIP codes are made of exactly the same digits (04359, 04539, 04935, 04953, 05439, 09354, …). The farthest-flung twin is 09354 in APO AE, a military post office, 5,548 miles away.
  • 🧭 Farther south than 72% of all ZIP codes, and farther west than 94%.
  • 🎯1,249 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 93405 and you would come out at 35.30°S, 59.27°E — 1,023 miles from Saint-Denis, Reunion, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 32m of daylight. Shortest: 9h 46m.
  • 📏 At 89.7 square miles of land, 93405 is bigger than 75% of ZIP codes — room for about 68 Central Parks.
🌙 The sky over 93405 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population25,002This ZIP25,002
Households8,883This ZIP8,883
Housing units9,858This ZIP9,858
Median age22.6This ZIP22.6California37.9US 38.9
Median household income$60,399This ZIP$60,399California$99,122US $80,734
Median home value$949,700This ZIP$949,700California$734,700US $332,700
Median gross rent$2,020This ZIP$2,020California$2,036US $1,413
Bachelor's degree or higher54.8%This ZIP54.8%
Mean commute14.6 minThis ZIP14.6 min
Population density278.7 / sq miThis ZIP278.7 / sq mi

Business and tax activity

Business establishments457This ZIP457
Employees6,997This ZIP6,997
Annual payroll$300,848,000This ZIP$300,848,000
Tax returns filed7,880This ZIP7,880
Total adjusted gross income$830,060,000This ZIP$830,060,000

Land area

Land area89.72 sq miThis ZIP89.72 sq mi
Water area0.17 sq miThis ZIP0.17 sq mi

Other place names in 93405

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

ZIP codes near 93405

ZIPCityDistance
93408 San Luis Obispo, CA 1.7 mi
93409 San Luis Obispo, CA 2.6 mi
93407 San Luis Obispo, CA 3.7 mi
93410 San Luis Obispo, CA 4.4 mi
93403 San Luis Obispo, CA 4.4 mi
93406 San Luis Obispo, CA 4.4 mi
93412 Los Osos, CA 5.5 mi
93402 Los Osos, CA 5.7 mi
93424 Avila Beach, CA 7.6 mi
93442 Morro Bay, CA 7.9 mi

Find every ZIP code within 10 miles of 93405 →

Questions about this ZIP code

Where is ZIP code 93405?

93405 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 35.3005, -120.7348.

What county is 93405 in?

93405 lies in San Luis Obispo County.

What area code is 93405?

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

What time zone is 93405 in?

93405 uses America/Los_Angeles.

How many people live in 93405?

About 25,002 people live in ZIP code 93405, in 8,883 households, at 278.7 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 93405?

$60,399 a year, against $99,122 across California.

What ZIP codes are near 93405?

The closest are 93408 (1.7 mi), 93409 (2.6 mi), 93407 (3.7 mi), 93410 (4.4 mi) and 93403 (4.4 mi).

Is 93405 a PO Box ZIP code?

93405 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “93405 ZIP Code — San Luis Obispo, California (San Luis Obispo County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/93405

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