University Park is a city in Dallas County, Texas, United States, in suburban Dallas. The population was 25,278 at the 2020 census. The city is home to Southern Methodist University. University Park is bordered on the north, east and west by Dallas and on the south by the town of Highland Park. University Park and Highland Park together comprise the Park Cities, an enclave of Dallas. University Park is one of the most affluent places in Texas based on per capita income; it is ranked#12.