Highland Park is a suburb in the northeast of Dallas, Texas. It is one of the most expensive places to live in the U.S., with an average home price of $1,085,000 and a median household income of $118,000. The costliest zip code in Highland Park is 76205 which has an average home price of $1,304,000 and a median household income of $164,000. In comparison to other zip codes in Dallas-Fort Worth metropolitan area, Highland Park has the highest number of households with six or more people earning more than $200K per year at 29%.