The Post Office Park ball field is located just west of the Carol Stream Post Office. Bring your chairs to watch a game or practice, or bring a blanket and picnic on the viewing hill.

Past the outfield, south of the property, there used to be a helicopter landing pad which was used for special postal deliveries. It is no longer used. South of that is a marshy natural plant area that separates the post office property from the other businesses in the area.