When did these postage price increases go into effect ... or commercial and what post "zone" it is in causing the rate to go up more or less. USPS zones are the classifications that the agency ...

can still be used even though prices are now going up. For example, a new Love stamp released Jan. 12 was initially sold at the first-class rate of 66 cents. When most postal offices start selling ...

The price of a postage stamp is going down by two cents, to 47 cents, for a one-ounce letter. But even two cents can add up to big losses for the U.S. Postal Service. WSJ's Laura Stevens reports.