Pennies are minted at three locations in the US; The San Francisco Mint, The Denver Mint and the Philadelphia Mint. Pennies from San Francisco have an "S" on them. Pennies from Denver have a "D" on them and pennies from Philadelphia have no letter.
In 2011, the U.S. Mint produced 4,938,540,000 pennies.
Company that makes pennies
1938 IN a MINT
According to the US mint, 6015.2 million pennies were made in 2012.
The US Mint does not wrap coins. All coin wrapping is done by third party companies.
Philadelphia Mint = 185,262,000 / Denver Mint = 41,730,000 / San Francisco Mint = 50,148,000 // TOTAL = 277,140,000
The US Mint produced 3.548 billion circulating coins in 2009. 2.354 Billion of those were pennies.
The letters under the date on some pennies indicates which US Mint branch made the coin. The letter "D" indicates the Denver, Colorado Mint, the letter "S" indicates the San Francisco, California mint and no letter at all indicates the coin was struck at the US Mint in Philadelphia, Pennsylvania.
9 BILLION (Excluding "Proof" coins) 4.6 are from the Philadelphia Mint. 4.4 are from the Denver Mint.
The Philadelphia Mint struck 4,290,000,000, Denver 3,944,000,000 and 3,054,436 Proof coins were struck at the San Francisco Mint.
13.1 BILLION (Excluding "Proof" coins) 6.6 BILLION are from the Philadelphia Mint. 6.5 are from the Denver Mint.