Registrations for emergency alert information in Marin County, using the Alert Marin notification system. Data includes number of households in each zip code, and number of registrations, and some percentage registration numbers.

The Adjusted Percent of Households column reflects that more than one person may have signed up per household. So 99% is assumed for any zip codes whereby the number of registrations is greater than the number of households. There cannot be more households signing up than there are households.

The numbers per zip code are adjusted for the Marin County portion of any zip codes that extend beyond the County boundary. Data is collected calendar quarterly starting with the first quarter of 2020.

Marin County Fire Crews' physical removal of brush, trees and other vegetation at various Marin locations, to reduce fire hazard and/or treat invasive species. Marin County Fire Department works on lands owned or controlled by the County, State, Federal, public agencies and private landowners. These agencies and landowners often cost share with the Fire Department. Because Fire/Vegetation Management resources are limited, County Fire seeks to prioritize its work on projects yielding the highest benefits to reducing the fire hazard. Fire crew sizes vary but are typically 12 to 24 people. Data begins June 2017 and is updated every calendar quarter.