Parks Township is a township in Armstrong County in the U.S. state of Pennsylvania. The population was 2,471 at the 2020 census, a decrease from 2,744 at the 2010 census. Parks Township is located in southern Armstrong County; the Kiskiminetas River forms the township's southern boundary with Westmoreland County. Carnahan Run flows through P…Parks Township is a township in Armstrong County in the U.S. state of Pennsylvania. The population was 2,471 at the 2020 census, a decrease from 2,744 at the 2010 census. Parks Township is located in southern Armstrong County; the Kiskiminetas River forms the township's southern boundary with Westmoreland County. Carnahan Run flows through Parks Township.