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USPS Priority Mail Increase 2021

May 3rd, 2023
2021 Priority Mail Rates

USPS Priority Mail is a fast and economical shipping service that provides delivery to anywhere in the United States within two to three days. With Priority Mail, you can send packages up to 70 lbs. and enjoy free USPS tracking and insurance of up to $50.

Stamps.com customers enjoy discounts of up to 40 percent over the Post Office rate on all Priority Mail shipments! These discounts are automatically calculated by the Stamps.com software.

Priority Mail Rate Changes in 2021

Priority Mail rates saw an average increase of 3.6 percent from 2020 to 2021. A one-pound package traveling from Los Angeles to New York (Zone 8) currently costs $8.42, up from $8.25 in 2020.

USPS Priority Mail (Commercial Base Pricing)
INCREASE PER PACKAGE – 2021 rates vs. 2020 rates
Mailpiece Weight20212020Change
1 lb. – Zone 8$8.80$8.42$0.38
2 lbs. – Zone 8$11.69$11.19$0.50
3 lbs. – Zone 8$16.45$15.74$0.71
4 lbs. – Zone 8$18.96$18.14$0.82
5 lbs. – Zone 8$21.96$21.01$0.95
6 lbs. – Zone 8$25.75$24.52$1.23
7 lbs. – Zone 8$28.93$27.55$1.38
8 lbs. – Zone 8$32.49$30.94$1.55
9 lbs. – Zone 8$36.12$34.40$1.72
10 lbs. – Zone 8$39.67$37.78$1.89

Rates for Priority Mail Flat Rate Boxes and Flat Rate Envelopes also increased in 2021.

Priority Mail Flat Rate (Commercial Base Pricing)
INCREASE PER PACKAGE – 2021 rates vs. 2020 rates
Mailpiece20212020Increase
Flat Rate Envelopes$7.40$7.15$0.20
Legal Flat Rate Envelope$7.70$7.45$0.20
Padded Flat Rate Envelope$8.00$7.75$0.20
Small Flat Rate Box$7.90$7.65$0.15
Medium Flat Rate Boxes$13.75$13.20$0.40
Large Flat Rate Boxes$19.30$18.30$0.70
APO/FPO/DPO Large Flat Rate Box$17.80$16.80$0.70

Priority Mail Regional Rate Boxes provide great cost savings over regular Priority Mail when your parcel is over two pounds. For example, a Priority Mail Regional Rate Box A that weighs five pounds for delivery to Zone 8 will cost $12.64 compared to $21.96 for regular Priority Mail.

Priority Mail Regional Rate Boxes (Commercial Base Pricing)
INCREASE PER PACKAGE – 2021 rates vs. 2020 rates
Box A
Zone 1 & 2Zone 3Zone 4Zone 5Zone 6Zone 7Zone 8Zone 9
2021$7.83$8.04$8.34$9.01$10.89$11.63$12.64$23.37
2020$7.68$7.92$8.21$8.92$10.42$11.13$12.10$18.69
Change$0.15$0.12$0.13$0.09$0.47$0.50$0.54$4.68
Box B
Zone 1 & 2Zone 3Zone 4Zone 5Zone 6Zone 7Zone 8Zone 9
2021$8.23$8.64$9.56$12.36$17.50$20.10$22.90$42.98
2020$8.07$8.51$9.42$11.53$16.72$19.21$21.89$34.38
Change$0.16$0.13$0.14$0.83$0.78$0.89$1.01$8.60
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