93409
ZIP 93409 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
- County
- San Luis Obispo
- Metro area
- San Luis Obispo-Paso Robles, CA
- Population
- 2,952
- Coordinates
- 35.3236, -120.6974
Weather right now
Asking the National Weather Service…
Where 93409 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.
- 🔢 Type 93409 into a pocket calculator and turn it upside down: GOhEG — not quite a word, sorry.
- ➕ As a number, 93,409 = 29 × 3221. Its digits add up to 25, a total 2,242 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10110110011100001 - 🏠 Its numerical neighbours: 93408 (San Luis Obispo, CA, 1 mi away) and 93410 (San Luis Obispo, CA, 3 mi away).
- 🔄 Backwards, 93409 becomes 90439, which is not a ZIP code at all.
- 👥 19 other ZIP codes are made of exactly the same digits (04939, 30499, 34990, 39094, 40939, 43909, …). The farthest-flung twin is 04939 in Garland, ME, 2,753 miles away.
- 🧭 Farther south than 72% of all ZIP codes, and farther west than 94%.
- 🎯1,247 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 93409 and you would come out at 35.32°S, 59.30°E — 1,025 miles from Saint-Denis, Reunion, the nearest big city to that spot.
- ☀Longest day of the year: 14h 33m of daylight. Shortest: 9h 46m.
- 📏 At 0.400 square miles of land, 93409 is bigger than 4% of ZIP codes — about 194 football fields.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 2,952This ZIP2,952 |
|---|---|
| Households | 0 |
| Housing units | 0 |
| Median age | 41.9This ZIP41.9California37.9US 38.9 |
| Bachelor's degree or higher | 2.5%This ZIP2.5% |
| Population density | 7,380.0 / sq miThis ZIP7,380.0 / sq mi |
Land area
| Land area | 0.40 sq miThis ZIP0.40 sq mi |
|---|---|
| Water area | 0.00 sq mi |
ZIP codes near 93409
| ZIP | City | Distance |
|---|---|---|
93408 | San Luis Obispo, CA | 1.2 mi |
93407 | San Luis Obispo, CA | 2.0 mi |
93410 | San Luis Obispo, CA | 2.6 mi |
93405 | San Luis Obispo, CA | 2.6 mi |
93403 | San Luis Obispo, CA | 3.5 mi |
93406 | San Luis Obispo, CA | 3.5 mi |
93401 | San Luis Obispo, CA | 7.6 mi |
93412 | Los Osos, CA | 7.7 mi |
93442 | Morro Bay, CA | 7.9 mi |
93402 | Los Osos, CA | 8.0 mi |
Find every ZIP code within 10 miles of 93409 →
Questions about this ZIP code
Where is ZIP code 93409?
93409 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 35.3236, -120.6974.
What county is 93409 in?
93409 lies in San Luis Obispo County.
What area code is 93409?
San Luis Obispo uses area codes 805 and 820, from NANPA's telephone records.
What time zone is 93409 in?
93409 uses America/Los_Angeles.
How many people live in 93409?
About 2,952 people live in ZIP code 93409, at 7,380.0 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 93409?
The closest are 93408 (1.2 mi), 93407 (2 mi), 93410 (2.6 mi), 93405 (2.6 mi) and 93403 (3.5 mi).
Is 93409 a PO Box ZIP code?
93409 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “93409 ZIP Code — San Luis Obispo, California (San Luis Obispo County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/93409
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/93409.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.