Closing costs differ depending on where you buy a home. Financial technology company SmartAsset measured closing costs as a percentage of median home value at the county level in Florida. Ranked No. 10, Sarasota had an average closing cost of $5,098 for a median home of $181,400. Top on the list was Monroe County at $8,664; No. 2 was Collier County at $6,694; and No. 3 was Saint Johns at $6,216. The average closing cost in Florida was $$3,608.