"Highland Park, on State Highway 289 and State Highway 75 four miles north of downtown Dallas in central Dallas County, is a 2.2-square-mile residential "island city" surrounded by Dallas on the south, east, and west and University Park on the north."
https://tshaonline.org/handbook/online/articles/hfh03Highland Park Local EventsDid you know that you have water restrictions regarding outdoor water use when using your sprinkler system? Find out when you are allowed to water!