New York City is the most populous city in the United States, with an estimated 8,491,079 people living in the city, according to U.S. Census estimates dating July 1, 2014 (up from 8,175,133 in 2010; 8.0 million in 2000; and 7.3 million in 1990).
, Minor obsession with world stamps. 1  It is currently worth $.47 US. 2  Forever stamps are designed to be the equivalent of whatever the current price of a first class stamp is, no matter when the stamp was purchased. In other words, if you bought a forever stamp in 1983 for $.25, it is worth $.47 today.
The Global Forever stamp can be used to mail a postcard or 1-ounce letter-size letter anywhere in the world by First Class Mail International delivery, according to the U.S. Postal Service. In 2014, a Global Forever stamp costs $1.15. Heavier letters and packages require more postage.