There are 6 United States Postal Service post boxes available to the public in Los Osos, CA. You can use any one of these locations to mail your letter or small package. For additional collection boxes in neighboring communities, see the list of post boxes in California.

Are you looking for a post office? See the list of post offices in Los Osos, CA.

Public Collection Box
1001 Los Osos Valley Rd
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Public Collection Box
1189 Los Osos Valley Rd
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Wells Fargo Bank
1130 Los Osos Valley Rd
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Ralphs
1240 Los Osos Valley Rd
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Public Collection Box
699 Embarcadero
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Public Collection Box
898 Napa Ave
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