Here are some of the factors that can affect the value of a 2009 Lincoln penny:
* Condition: The condition of a coin is one of the most important factors in determining its value. A coin in uncirculated condition is worth more than a coin that has been circulated.
* Rarity: Some varieties of the 2009 Lincoln penny are rarer than others. For example, the 2009 Lincoln penny with the "S" mint mark is rarer than the 2009 Lincoln penny with the "P" mint mark.
* Errors: Coins with errors can be worth more than regular coins. For example, a 2009 Lincoln penny with a doubled die error can be worth up to $1,000.
If you have a 2009 Lincoln penny, you can check its value by visiting a coin dealer or by looking online.