Largo is the third largest city in Pinellas County, Florida, USA and is part of the Tampa Bay Area. Centrally located, it is the crossroads of the county. As of the 2000 census, the City had a total population of 69,371. As of 2004, the population recorded by the U.S. Census Bureau was 71,704. Largo apartments for rent comparison page shows most up to date rent information on Largo apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.