Deer Park was founded in 1892 by Simeon Henry West, a settler from Illinois. The town was named for a park of privately owned deer in the area. A railroad station opened later that year and a Post office followed in 1893. Deer Park is a city in the U.S. state of Texas within the Houston Sugar Land Bay town metropolitan area. The city is located in HarrisCounty and is situated in Southeast Texas. As of the 2010 U.S. Census, the population of DeerPark was 32,010.