First Class Postage Rates 2024 Postcard. Usps sends mail to over 180 countries, including canada and australia. Postage stamp to 68 cents and domestic postcard stamps to 53 cents.

 — usps mail class (effective sunday, july 14, 2024) postage rates. Postage stamp will increase from 66 cents to 68 cents, according to the u.s.