what county is seffner florida in
Seffner, FL. Seffner is located close to the center of Florida. Seffner is part of Hillsborough County. Seffner has 3.60 square miles of land area and 0.20 square miles of water area. As of 2010-2014, the total Seffner population is 7,532, which has grown 37.77% since 2000.