Deerfield Beach is a city in Broward County, Florida, USA. The city is named for the numerous deer that once roamed the area. As of the 2000 census, the city had a total population of 64,583. As of 2004, the population estimated by the U.S. Census Bureau is 66,189. Deerfield Beach apartments for rent comparison page shows most up to date rent information on Deerfield Beach apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.