Katy, Texas, is the "hottest" zip code in the country. A new list ranks the "most popular ZIP codes" in the U.S. Katy, Texas, came in at No. 1 Katy is a part of the Greater Houston metropolitan area.

With housing prices cooling in the Houston area, buyers flocked to the suburbs in 2023 with Cypress and Katy topping the list of "hottest zip codes" in the country, according to an Opendoor report ...