#101. The Best Neighborhoods to Live in Pinellas County, FL Isla Del Sol, St. Petersburg, FL Learn more Population: 5,167 Median Age: 66 Family-Households: 62% Median Household Income: $103,854 Average Commute (mi.): 29 Median Home Value: $457,412 Median Monthly Rent: $731 Renter-Occupied: 6%