Postcard Mailing Sizes

Mailing standard sized postcards

We offer printing and mailing services online. Use our mailing services to send out postcards in standard sizes. Choose among these USPS (United States Postal Service) postage rates: First Class Card Rate, First Class Letter Rate and Standard Bulk Rate. These are the postcard mailing sizes: 4 x 6” and 4.25 x 6” cards, and 4.5 x 6” to 6 x 11” cards. We also mail postcards with envelopes. Confirm your specifications by choosing a size, color, quantity, stock and printing turnaround. Choose postage and indicate mailing quantity for your postcards. Call My Postcard Printing at (866) 266-6182 for more information about our mailing services.