Countywide greenhouse gas emission data were inventoried for 2005 and 2010.

*NOTE: Methodologies have changed between inventories. Emissions from water use and freight trains are new inclusions in the 2010 protocol. Agriculture emissions were included in Transportation - Off-Road Equipment for 2010.

Participation rates in the County's Commute Alternatives Program over fiscal years

Projected data on VMTs, number of vehicles, fuel consumption, and fuel economy from 2011 to 2040. Source: Caltrans (MVSTAFF)

Data from BAWSCA Annual Survey. Water consumption data by water districts in San Mateo County from 2008-2013. Includes data on: water use, water use by customer class, water source, number of customer accounts, and residential per capita water consumption.