Highland Park is a town in Central Dallas County, Texas, United States. The population was 8,842 at the 2000 census. Located between the Dallas North Tollway and U.S. Route 75 (North Central Expressway), four miles north of downtown Dallas. It is the 40th wealthiest city in the United States and the 19th wealthiest city with a population of over 1,000. Highland Park is the 3rd wealthiest location in Texas by per capita income. Highland Park is bordered on the south, east and west by Dallas and on the north by University Park. Highland Park and University Park together comprise the Park Cities. Addresses in Highland Park may use either "Dallas, Texas" or "Highland Park, Texas" as the city designation, although the United States Postal Service prefers the use of the "Dallas, Texas" designation for the sake of simplicity. This can be seen on the USPS website Zip Code finder when the town name (Highland Park) is replaced by the surrounding city (Dallas) name. In terms of formal education, Highland Park is Texas' second best educated city, after its neighbor University Park, with 76.6% of adults age 25 or older holding an associate degree or higher, and 74.7% of adult residents possessing a baccalaureate degree or higher.