Deerfield Beach is a city in Broward County, Florida, United States. Located 40 miles north of Miami, it is a principal city in the Miami metropolitan area in South Florida, which was home to 6.14 million people in 2020. As of the 2020 census, the population was 86,859, making it the tenth-largest city in Broward County and the 13th-largest city in the Miami metropolitan area. The Hillsboro River and the city of Boca Raton border the city to the north, the Atlantic Ocean to the east, Coconut Creek to the west, and Pompano Beach to the south.