: This is the most certain way to purchase a single stamp of any denomination. You can visit any of the over 31,000 USPS locations in the U.S..
: Some neighborhood "mom-and-pop" convenience stores or pharmacies may sell single stamps from behind the counter, though this varies by location. Current Pricing (as of 2026) buy one stamp
To buy just one stamp, your most reliable options are the retail counter or self-service kiosks at a location. While many major retailers sell stamps, they typically only offer them in books or coils. Where to Buy a Single Stamp : This is the most certain way to