The Town of Parker is a home rule municipality located in Douglas County, Colorado, United States. In recent years, Parker has become an Commuter town part of the Denver Metropolitan Area. As of the 2000 census, the town population was 23,558. Its population as of 2006 is estimated at 41,406, over 145 times its population of 285 when Parker incorporated in 1981. Parker is now the 18th most populous municipality in the State of Colorado. Parker apartments for rent comparison page shows most up to date rent information on Parker apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.