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Los Osos, CA ZIP codes

Los Osos, California has 2 ZIP codes, including 1 PO Box ZIP. They are in San Luis Obispo County.

Population in these ZIPs
14,197
Avg. median income
$109,100population-weighted
Typical home value
$866,700population-weighted
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ZIP codes within 10 miles

Los Osos, CA ZIP codes list

Los Osos, CA ZIP codes
ZIP codeCountyPopulationMedian incomeTypical home value
93402San Luis Obispo County14,197$109,090$866,700
93412 PO BoxSan Luis Obispo County———

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Cities near Los Osos

Frequently asked questions

What is the ZIP code for Los Osos, CA?

Los Osos, CA has 2 ZIP codes: 93402 and 93412.

What county is Los Osos, California in?

Los Osos ZIP codes are in San Luis Obispo County.

Which Los Osos ZIP codes are PO Boxes?

93412 is a PO Box or single-organization ZIP code; it has no residential delivery area.