How many 1956 wheat pennies were minted?

Wheat cents were minted for 50 years and at 3 different mints, so that's not an easy question to answer. You can find mintage figures at a site such as in the link below, but there is no way to tell how many of each mintage are still in existence. Coins have been lost, corroded, thrown away, melted, damaged, you name it.