Casa Grande Annex Post Office
does not have retail counter servicesThis USPS post office is located in Petaluma, CA where the date and time is currently: 4/3/2026, 3:36:04 PM
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Phone numbers
- Phone:707-769-5360
- Fax: 707-763-7465
Services at Casa Grande Annex Post Office
No dedicated parking. Here's what you can do at this location:
Shipping
- Carrier Services
- Postal carriers deliver and pick up mail and packages along routes serving homes and businesses in this area. You can schedule a free package pickup from your address.
PO Box & Mail
- General Delivery
- Receive mail without a permanent address. Mail is held at the post office and you pick it up at the counter with a valid ID. Often used by travelers or people between moves.
- Accountable Mail Pickup
- Pick up items that require a signature: Certified Mail, Registered Mail, Collect on Delivery, insured packages, and Signature Confirmation items.
- Hold Mail Pickup
- Pick up mail that USPS has been holding while you were away. You can request a hold for up to 30 days through usps.com or at the counter.
- Package Pickup (Notice Left)
- Pick up a package that couldn't be delivered — the carrier left a slip at your door. Bring the notice and a valid ID.
- PO Box (Online Management)
- Rent a PO Box and manage billing online. A PO Box gives you a secure, private mailing address — useful if you run a business or want to separate personal and business mail.