California is the state with the highest number of asbestos-related deaths in the entire U.S. Between 1999 and 2013, the mortality rate for all conditions caused by asbestos exposure in California was 3.9, with mesothelioma accounting for nearly 4,000 deaths during this time span. Los Angeles is also the county with the most astounding number of deaths due to mesothelioma in the U.S., with over 900 victims between 1979 and 2001. Enter your zip code or choose from the filters below to see the most polluted areas with asbestos.