: Postcard stamps are a more affordable option for sending standard 4" x 6" postcards. While you can use a regular Forever Stamp on a postcard, it costs more than a dedicated postcard stamp (e.g., $0.78 vs. $0.61).
: To qualify for the postcard rate, the mailpiece must be rectangular and fall within specific dimensions—typically between 5" to 6" long and 3.5" to 4.25" high. Oversized postcards or those made of thick material may require a standard First-Class letter stamp. Where to Buy Postcard Stamps can you buy postcard stamps
You can purchase postcard stamps from several reliable sources: Postage Stamps - The Basics - FAQ | USPS : Postcard stamps are a more affordable option
Yes, you can buy stamps specifically designed for postcards, which are typically cheaper than standard letter stamps. As of early 2026, a postcard stamp is priced for a single, standard-sized postcard. : To qualify for the postcard rate, the
