Oldsmar is a city in Pinellas County, Florida, United States. As of the 2020 census, the city had a population of 14,898. The Oldsmar name dates to April 12, 1916, when automobile pioneer Ransom E. Olds purchased 37,541 acres (151.92 km2) of land north of Tampa Bay to establish a planned community. Geography. Oldsmar is located at 28°02′31″N 82°40′35″W. According to the United States Census Bureau, the city has a total area of 9.7 square miles (25.0 km2), of which 8.7 square miles (22.5 km2) is land and 0.97 square miles (2.5 km2) (9.83%) is water. History.
https://en.wikipedia.org/wiki/Oldsmar,_Florida