Mount Laurel New Jersey Real Estate There are many communities within the Mount Laurel Area. The Ramblewood, Rancocas, and Larchmont sections are just a few of the large communities within the Mount Laurel area. Mount Laurel Township is a Township in Burlington County, New Jersey, United States. The community was named for a hill at the main crossroads. It is in the Eastern Standard time zone. The community grew rapidly with the opening of the New Jersey Turnpike in 1951. At the last census (2000) the population was 40,221.