From 2017 to 2021, the Southern District of Florida heard the highest number of insurance case filings. State Farm Mutual Auto Insurance was the most active defendant by number of cases with just under 2,500 lawsuits against it. State Farm 's casualty coverage firm, State Farm Fire & Casualty, was the second most active defendant, with 2,332 cases. Allstate Insurance rounded out the top three most active defendants by cases with 1,236 cases.