The Postal Service raised stamp prices Sunday as part of a 10-year plan to stabilize finances and modernize operations.

The postal service said the "price adjustments are needed to achieve the financial stability sought by the organization's ...

The cost of a Forever is not forever, as the price has risen yet again. The cost of a Forever stamp is now up to 78 cents, ...

Since 1934, sales of Federal Duck Stamps have raised $1.2 billion to conserve more than 6 million acres of wetlands and other ...