Buy Postage Stamps in Greenfield, CA

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

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

Greenfield Post Office

846 Oak Ave
Greenfield, CA 93927
Greenfield Post Office is a full post office where stamps can be purchased.