Find USPS blue mailboxes across California. Browse 1101 cities and 13,948 drop boxes with maps and pickup times.
California’s mix of dense cities and long commutes makes blue USPS collection boxes a practical way to keep mail moving. From coastal towns to inland valleys, you’ll find street‑side drop boxes near grocery centers, business corridors, campuses, and transit hubs. If you’re on a tight schedule, compare a few nearby locations—pickup times can vary widely between downtown routes and suburban stops. Before you head out, open the city page to scan the map and choose a box along your route. For late‑day errands, look for boxes near larger retail clusters or post office entrances, which often collect later. Always check the posted schedule on the box for the day’s final pickup.
In larger metros such as San Francisco, Los Angeles, San Diego, you’ll often find multiple boxes within a few blocks.
Tip: if timing is tight, check two or three nearby boxes—some collect later than others. For specific directions, tap a mailbox to view its address, map, and today’s pickup time.
Browse cities on this page, then open a city to see nearby USPS blue mailboxes with addresses, maps, and pickup times.
Open a city, then select a mailbox to view today’s pickup time and directions. If timing is critical, compare a few nearby boxes for later collections.
We regularly update information, but mailbox availability and schedules can change. Use the mailbox page for details and consider nearby alternatives.