West Palm Beach, also known as West Palm, is the most populous city in Palm Beach County, Florida, USA. The city is also the oldest incorporated municipality in South Florida. According to the University of Florida's 2006 estimates, the city had a population of 107,617. West Palm has a much larger unincorporated population estimated at upwards of 250,000. The city's Urbanized Area has an estimated population of almost.3 million. West Palm's economy is currently ranked #4 in the Milken Institute Best Performing 296 U.S. Cities index. West Palm Beach apartments for rent comparison page shows most up to date rent information on West Palm Beach apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.