The Mail Services Department processes an average of 15,000 pieces of mail per month
Here are some examples:
First Class - (report cards, progress reports, regular site mail)
Bulk Mailings - (newsletters, notice of event)
Special Handling - ( Certified/Return Receipt, International)
as well as UPS, Fedex, US Priority Mail.
Creating your own postcards?
Here's what you'll need to know:
- Minimum Allowable Postcard Size: 3.5 x 5 Inches
If the width is less than 5 inches or the height is less than 3.5 inches the USPS will NOT mail your postcard. - Maximum Allowable Postcard Mailing Size: 4.25 x 6 Inches
If the width is greater than 6 inches or the height is greater than 4.25 inches, the postcard must be mailed as a letter, higher rate and all. - Minimum Thickness: .007 Inches
Any mail less than the minimum is considered Non-Mailable and the USPS will NOT deliver it. - Maximum Thickness: .25 inches
Exceeding the maximum puts the mail piece into a different mail class, called a Parcel. - Intermediate Sizes are Allowable
A 4 x 5.5 inch postcard is mailable at the postcard mailing rate. As long as a mail piece meets the size, thickness, weight and aspect ratio requirements above, it can be mailed as a postcard. - Minimum Thickness: .007 Inches
- Maximum Thickness: .25 inches
Space reserved for USPS Barcode and Endorsements

