Buy Postage Stamps in Newcastle, CA

Post Offices and USPS-authorized retailers where postage stamps are sold in Newcastle, CA.

All the locations below sell USPS postage stamps which can be used to mail First Class letters in the United States. We list both official post offices run by the United States Postal Service and retailers which have been authorized by USPS to sell postal products in Newcastle.

Need to mail a letter? See Mailboxes and Post Offices in Newcastle

Newcastle Post Office

9241 Old State Hwy
Newcastle, CA 95658
Newcastle Post Office is a full post office where stamps can be purchased.