USPS shows you how to send a letter or postcard in the U.S., from choosing an envelope, writing the address, buying and applying stamps, and finding a drop-off location.

USPS Transit Time Map View expected delivery times for domestic shipping services based on USPS service standards. Exceptions apply and delivery time is not guaranteed.

Send Letters & Cards Learn how to choose the best envelope or card size, follow Postal addressing standards, and get stamps for your mail.

Requires Ground Transportation Please select from the following options Calculate Postcard price View Flat Rate Envelopes View Flat Rate Boxes Calculate price based on Shape and Size

Please verify the address before sending your mail. If more than one address matches the information provided, try narrowing your search by entering a street address and, if applicable, …

Use an envelope large enough to fit the application without folding it. TIP: Pay for Priority Mail Express ® or Priority Mail ® service and get free envelopes that are large enough to hold your …

22 Last Line of the Address 23 Delivery Address Line 24 Rural Route Addresses 25 Highway Contract Route Addresses 26 General Delivery Addresses 27 United States Postal Service …

All postcards and envelopes (or flats) must be rectangular, otherwise an additional charge may apply. Additional size restrictions apply depending on the type of mailpiece you're sending.

Write the delivery address in the bottom center of the envelope. You must write the delivery address in English, though you can include the delivery address in another language (like …

All postcards, letters, and large envelopes (or flats) must be rectangular, otherwise an additional charge may apply. Additional size restrictions apply depending on the type of mailpiece you're …