Glossary: campaign
Postcard rate
AQuick answer
USPS's discounted mailing rate for pieces meeting postcard size and thickness limits.
The USPS postcard rate applies to mailings between 3.5×5 in and 4.25×6 in on stock 7-14pt, which covers our standard 12pt C2S cards. Larger or thicker pieces mail at First-Class or automation letter rates. Our design team sizes to postcard-rate specs by default unless a larger format is required.