There are 18 United States Postal Service post boxes available to the public in San Marcos, 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 San Marcos, CA.

Public Collection Box
1655 S Rancho Santa Fe Rd
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Public Collection Box
1105 La Bonita Dr
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Public Collection Box
700 S Rancho Santa Fe Rd
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Public Collection Box
801 San Pablo Dr
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Public Collection Box
1330 E Mission Rd
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Public Collection Box
131 Woodland Pkwy
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Public Collection Box
420 N Twin Oaks Valley Rd
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Public Collection Box
330 Rancheros Dr Ste A
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Public Collection Box
333 S Twin Oaks Valley Rd
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Public Collection Box
100 Vallecitos De Oro
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Public Collection Box
1140 W Mission Rd
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Public Collection Box
128 N Las Posas Rd
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Public Collection Box
1608 Capalina Rd
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Public Collection Box
120 N Pacific St
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Public Collection Box
1350 Grand Ave
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Public Collection Box
186 S Rancho Santa Fe Rd
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Public Collection Box
801 Applewilde Dr
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Public Collection Box
100 Park Pl
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