where is deer park?
Deer Park, TX. Online Offers. Deer Park is a city in the U.S. state of Texas within the HoustonâSugar LandâBaytown metropolitan area. The city is located in Harris County and is situated in Southeast Texas. As of the 2010 U.S. Census, the population of Deer Park was 32,010. 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.