The Numbers Behind the RankingA new Insurance Business America special report on the U.S. fire insurance market shows California’s fire insurance premiums grew 126.5 percent over five years, reaching $3.37 billion in 2024. Hartford, State Farm, AIG, and Allstate all pulled back from California homeowners insurance. The largest fire insurance market in America is one where four major national carriers stopped writing new policies. California is the largest fire insurance market in the country. For individual homeowners, being part of the largest market has not meant easier access to coverage, lower prices, or more options.