If your postcard is larger than 4.25" x 6", it is automatically classified as a letter and will cost the standard letter rate ($0.78).
Postcards are an incredibly cost-effective and charming way to stay in touch, save on wedding RSVPs, or launch a local business marketing campaign. This guide breaks down exactly how to buy postcard stamps, what rules you need to follow, and where to grab them online or in person. 📌 Postcard Stamp Basics buy postcard stamps
Go straight to the source by visiting the USPS Postal Store If your postcard is larger than 4
. You can buy sheets of 20 or coils of 100. They feature lovely curated designs like the USPS Vibrant Leaves Postcard Stamps Go to product viewer dialog for this item. 📌 Postcard Stamp Basics Go straight to the
If you need to drop your postcards in the mail today, skip the shipping delay and buy them locally. Postcard Stamp Cost 2026: $0.61 Single, $0.247 Bulk