•The U.S. one-cent coin is 19 millimeters in diameter and weighs 2.5 grams.

•The composition of the penny is 97.5% zinc and 2.5 % copper.

•There have been 11 different designs featured on the penny.

•Since its beginning, the U.S. Mint has produced over 288.7 billion pennies.  Lined up edge to edge, these pennies would circle the earth 137 times.

•According to the U.S. Treasury, a circulating coin (e.g., penny, nickel, dime) lasts nearly 30 years.

•The most "expensive" penny is a rare one minted in 1793.  Only four are known to exist today and their worth is estimated at more than $275,000.

•An average of 1,040 pennies are produced every second, adding up to 30 million a day.