: Indicate the quantity and type of stamps you need.
: Unlike rural carriers, city letter carriers typically do not carry a stock of stamps for immediate sale. While some city carriers may informally accept money left in a mailbox with a note to bring stamps the next day, this is not a formal part of their duties and can sometimes be discouraged for security or disciplinary reasons. How to Order Through Your Carrier can i buy stamps from the mailman
If you need stamps more quickly than a few days, you can find them at many everyday locations: Need Postage Stamps? It's Easier Than You Think : Indicate the quantity and type of stamps you need