Number of home sales, by month, in San Mateo County from January, 1998 - December, 2014. Includes median and average sales price, average days on the market, and number of new listings. Data is courtesy of MLS Listings and Silicon Valley Association of REALTORS (SILVAR).

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.

Water samples from natural recreational waters in San Mateo County are sampled each week for concentrations of indicator bacteria including E. Coli, Enterococcus, and Coliform bacteria. If concentrations of indicator bacteria exceed State or County standards, the area is posted to warn users that they may become ill if they engage in water contact activities in the posted area.

More information about results and testing can be found on the San Mateo County Health System site: http://smchealth.org/environ/beaches

This dataset contains readings from January, 2012 to the present and is updated weekly.

Results from the one day point in time census of homeless individuals in San Mateo County from 2007 - 2010. The Census and Survey was designed to meet two related sets of data needs. The first is the requirement of the U.S. Department of Housing and Urban Development (HUD) that communities applying for McKinney-Vento Homelessness Assistance funds (also known as Continuum of Care or “CoC” funds) must conduct a point-in-time count of homeless people a minimum of every two years. These counts are required to take place in the last ten days of January.

STAR Third Grade Reading Scores as a Percentage of Economically Disadvantaged Students classified by the State of California Department of Education as being "At or Above Proficient" reading level for 2013 school year.

Hillsborough Unified School District reported a third grade enrollment of 183 students, with 1 student tested. Test results cannot be reported due to identity protection requirements.

Las Lomitas Elementary School District reported a third grade enrollment of 170 with 3 students tested. Test results cannot be reported due to identity protection requirements.

Menlo Park City Elementary District reported a third grade enrollment of 352 with 6 students tested. Test results cannot be reported due to identity protection requirements.

Portola Valley Elementary School District reported a third grade enrollment of 80 with 3 students tested. Test results cannot be reported due to identity protection requirements.

Woodside School District reported a third grade enrollment of 51 with 2 students tested. Test results cannot be reported due to identity protection requirements.

Water samples from natural recreational waters in San Mateo County are sampled each week for concentrations of indicator bacteria including E. Coli, Enterococcus, and Coliform bacteria. If concentrations of indicator bacteria exceed State or County standards, the area is posted to warn users that they may become ill if they engage in water contact activities in the posted area.

More information about results and testing can be found on the San Mateo County Health System site: http://smchealth.org/environ/beaches

This dataset contains readings from January, 2012 to the present and is updated weekly.

Counts of bike and pedestrian road use at locations around San Mateo County.

Bike and pedestrian count data from 2016 can be found in two other datasets:

Summary Bike and Pedestrian Count 2016
https://data.smcgov.org/Transportation/Summary-Bike-and-Pedestrian-Count-2016/5cs5-z733

Site Specific Summary Bike Pedestrian Count 2016
https://data.smcgov.org/Transportation/Site-Specific-Summary-Bike-Pedestrian-Count-2016/mf7e-384t

Water samples from natural recreational waters in San Mateo County are sampled each week for concentrations of indicator bacteria including E. Coli, Enterococcus, and Coliform bacteria. If concentrations of indicator bacteria exceed State or County standards, the area is posted to warn users that they may become ill if they engage in water contact activities in the posted area.

More information about results and testing can be found on the San Mateo County Health System site: http://smchealth.org/environ/beaches

This dataset contains readings from January, 2012 to the present and is updated weekly.

Median household income for one through four person families in San Mateo County. This data is sourced from the US Department of Housing and Urban Development and is used in affordable housing indicators by the County's Department of Housing.

Water samples from natural recreational waters in San Mateo County are sampled each week for concentrations of indicator bacteria including E. Coli, Enterococcus, and Coliform bacteria. If concentrations of indicator bacteria exceed State or County standards, the area is posted to warn users that they may become ill if they engage in water contact activities in the posted area.

More information about results and testing can be found on the San Mateo County Health System site: http://smchealth.org/environ/beaches

This dataset contains readings from January, 2012 to the present and is updated weekly.