Us Postage Rates 2024 Chart. Explore the usps postage rate shifts for postcards, flats, and letter sizes in 2024, and optimize your mailing strategies accordingly to save costs. Postal service has announced new prices for 2024.
The charts below show the old rates (crossed out) and new rates (in yellow) for common types of usps mail. This means certain shipping and mailing costs will increase for specific zip codes.