Usps Rates 2024 Per Ounce Usa. Washington, dc — today, the united states postal service filed notice with the postal regulatory commission (prc) of mailing services price changes to take. Up to $100 for nonnegotiable.
Effective september 16, 2024, usps will adjust rates for priority mail ® and ground advantage ™ packages shipped to certain zip codes. Explore the usps postage rate shifts for postcards, flats, and letter sizes in 2024, and optimize your mailing strategies.