FIRST-CLASS MAIL RATES Jan. 22, 2012

■ Letters (1 oz.) – 1-cent increase to 45 cents. This is the first increase in the price of a
   First-Class Mail stamp since May 2009.
■ Single-piece letters additional ounce rate – unchanged at 20 cents.
■ Postcards – 3-cent increase to 32 cents
■ Letters to Canada or Mexico (1 oz.) – 5-cent increase to 85 cents
■ Letters to other International destinations – 7-cent increase to $1.05
■ The second ounce will be free for First-Class Mail Presort pieces weighing between one
   and two ounces

http://about.usps.com/news/national-releases/2011/pr11_factsht_pricechng_1018.pdf