Yes, depending on the mail class used and the metro area you live in, the U.S. Postal Service does deliver packages on Sundays. In December 2018, the USPS delivered more than 8 million packages on Sundays to residents across the U.S.
|Mail Class||Sunday Delivery Available?||Insurance||USPS Tracking|
|Priority Mail Express||Yes (additional $12.50 fee required)||$100 included||Yes|
|Priority Mail||Yes (large metros only)||$50 included||Yes|
|First Class Package Service||Yes (large metros only)||Available||Yes|
|Parcel Select Ground||No||Available||Yes|
|First Class Mail Letters||No||Not Available||No|
|First Class Mail Flats/Large Envelopes||No||Not Available||No|
In 2013, the USPS began a test program delivering packages for Amazon.com on Sundays. The program originally started in Los Angeles and New York City but quickly moved to all large metro areas across the U.S. As e‑commerce continued to grow, the USPS expanded the program to include all packages.
No, only packages are delivered to select metro areas in the U.S. Letter mail is delivered 6 days a week Monday through Saturday.
No, nearly all Post Offices are closed on Sundays. Most bulk mail processing centers and USPS distribution centers are open to help route mail and packages to their final destination, but these centers are not open to the public.
Stamps.com lets you print USPS postage stamps and shipping labels for any mail class or denomination 24 hours a day, 7 days a week. With just an internet connection and a printer, you can access all the services of the Post Office right on your computer from your home or office.