 Many FEMA trailers are installed on the private property of homeowners, usually on lawns and sometimes in driveways next to the house.However, there are also numerous FEMA operated trailer parks where many storm victims have been living.The trailer parks operated by FEMA range from small lots, consisting of a dozen trailers in the parking lots of office buildings and supermarkets, to several massive parks occupying large plots of land with hundreds of trailers.