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San Mateo County

California · Public K-12

San Mateo County, California's 176 public schools span elementary through high school (110 elementary, 26 middle, and 37 high). Total enrollment is roughly 82,403 students.

7-year change in San Mateo County

SY 2017-18 vs SY 2024-25
Total enrollment
82,403
-12,117 (-13%) vs SY 2017-18
School count
169
-9 (-5%) vs SY 2017-18
% White
22%
was 28%
% Hispanic
40%
was 38%
% Black
1%
was 2%
% Asian
25%
was 24%
Source: NCES Common Core of Data, enrollment-weighted demographic averages
Schools
176
37 districts
Enrollment
82,403
NCES CCD
Median income
$158,855
Above California avg
Free/reduced lunch
34.0%
Below California avg
Elementary
110
40,080 students
Middle
26
15,878 students
High
37
26,401 students
Combined / other
3
44 students
LARGEST DISTRICT
San Mateo-Foster City
9,906 students · 37 districts in San Mateo County

County vs. school enrollment demographics

Left bar is the racial makeup of San Mateo County residents (Census ACS 5-year). Right bar is the enrollment-weighted makeup of public schools in the county (NCES CCD). NCES systematically under-reports Hispanic, Pacific Islander, and Native American enrollment for many schools; where the resident share is meaningful but the reported school share is zero, we mark the school bar "not reported".

County residents
White
38%
Hispanic
25%
Black
2%
Asian
31%
Two or more
14%
Native American
1%
Pacific Islander
1%
School enrollment
White
22%
Hispanic
40%
Black
1%
Asian
25%
Two or more
10%
Native American
0%
Pacific Islander
1%
Bachelor's+
53.7%
adults 25+
Poverty rate
4.0%
ACS 5-year
Unemployment
4.8%
civilian labor
Median age
41
19.5% under 18

Test scores in San Mateo County

Latest 2023-24 ELA proficiency, 139 schools ranked. California state average: 47.6%.

See all 139 schools in San Mateo County ranked by score →

All schools (176)

LargestA-ZTop rated
NameCityLevelGradesEnrollmentRating
LEAD ElementarySan MateoElementaryKG-05349·
Sunset Ridge ElementaryPacificaElementaryKG-05348·
Beach Park ElementaryFoster CityElementaryKG-05347·
Sunnybrae ElementarySan MateoElementaryKG-05346·
BayshoreDaly CityElementaryKG-08342·
San Mateo Park ElementarySan MateoElementaryKG-05340·
Green Hills ElementaryMillbraeElementaryKG-05338·
Sunshine Gardens ElementarySouth San FranciscoElementaryKG-05329·
North Shoreview MontessoriSan MateoElementaryKG-08325·
El Granada ElementaryHalf Moon BayElementaryKG-05324·
MariposaSan CarlosElementary04-05322·
Westlake ElementaryDaly CityElementaryKG-05321·
Heather ElementarySan CarlosElementaryKG-03320·
Daniel Webster ElementaryDaly CityElementaryKG-05317·
Belle Haven ElementaryMenlo ParkElementaryKG-05312·
Roosevelt ElementaryBurlingameElementaryKG-05311·
Brewer Island ElementaryFoster CityElementaryKG-05306·
John F. Kennedy ElementaryDaly CityElementaryKG-05304·
Los Cerritos ElementarySouth San FranciscoElementaryKG-05304·
Margaret Pauline Brown ElementaryDaly CityElementaryKG-05303·
Marjorie H. Tobias ElementaryDaly CityElementaryKG-05299·
Franklin Delano Roosevelt ElementaryDaly CityElementaryKG-08294·
Thomas Edison ElementaryDaly CityElementaryKG-05294·
Summit Preparatory Charter HighRedwood CityHigh09-12293·
ArroyoSan CarlosElementary04-05290·
Garden Village ElementaryColmaElementaryKG-05288·
Junipero Serra ElementaryDaly CityElementaryKG-05286·
Garfield ElementaryMenlo ParkElementaryKG-05280·
East Palo Alto AcademyEast Palo AltoHigh09-12278·
Lomita Park ElementarySan BrunoElementaryKG-05277·
Los Robles-Ronald McNair AcademyEast Palo AltoElementaryKG-05276·
Rocketship Redwood CityRedwood CityElementaryKG-05275·
West HillsboroughHillsboroughElementaryKG-05275·
North HillsboroughHillsboroughElementaryKG-05274·
Woodrow Wilson ElementaryDaly CityElementaryKG-05266·
Corte MaderaPortola ValleyMiddle04-08252·
Belle Air ElementarySan BrunoElementaryKG-05250·
White Oaks ElementarySan CarlosElementaryKG-03250·
South HillsboroughHillsboroughElementaryKG-05244·
Ormondale ElementaryPortola ValleyElementaryKG-03243·
Meadow Heights ElementarySan MateoElementaryKG-05238·
Hoover ElementaryBurlingameElementaryKG-05227·
Everest Public HighRedwood CityHigh09-12224·
Beresford ElementarySan MateoElementaryKG-05218·
Tide AcademyMenlo ParkHigh09-12212·
Brisbane ElementaryBrisbaneElementaryKG-05207·
George Washington ElementaryDaly CityElementaryKG-05206·
KIPP Esperanza HighEast Palo AltoHigh09-12194·
Farallone View ElementaryMontaraElementaryKG-05177·
Redwood HighRedwood CityHigh09-12175·
Lipman MiddleBrisbaneMiddle06-08161·
Connect Community CharterRedwood CityElementaryKG-08143·
Baden High (Continuation)South San FranciscoHigh09-12130·
Pescadero Elementary and MiddlePescaderoElementaryKG-08126·
Peninsula High (Continuation)BurlingameHigh09-12123·
Panorama ElementaryDaly CityElementaryKG-05116·
Oxford Day AcademyEast Palo AltoHigh09-12108·
Thornton HighDaly CityHigh09-1289·
Pescadero HighPescaderoHigh09-1281·
La Honda ElementaryLa HondaElementaryKG-0565·
The Bridge AcademySan MateoHigh10-1254·
Kings Mountain ElementaryWoodsideElementaryKG-0546·
San Mateo County Special EducationRedwood CityCombinedKG-1244·
Pilarcitos Alternative High (Continuation)Half Moon BayHigh09-1225·
Hillcrest at Youth Services CenterSan MateoHigh05-1216·
Pacifica Independent Home StudyPacificaElementaryKG-0812·
Gateway CenterSan MateoHigh06-1211·
Canyon Oaks Youth CenterRedwood CityHigh07-128·
San Mateo-Foster City Special Education PreschoolFoster CityElementaryKG-KG1·
Community DaySouth San FranciscoHigh06-120·
Hillside ElementarySouth San FranciscoElementaryKG-050·
Margaret J. KempSan MateoHigh07-120·
BSD PreschoolBurlingameElementaryM-M··
Linda Mar Educational CenterPacificaCombinedM-M··
Rollingwood ElementarySan BrunoCombinedM-M··
San Carlos Student Services PreschoolSan CarlosElementaryM-M··

Cities in San Mateo County

San Mateo23 schoolsRedwood City22 schoolsDaly City20 schoolsSouth San Francisco14 schoolsBurlingame10 schoolsPacifica10 schoolsSan Carlos10 schoolsSan Bruno9 schoolsEast Palo Alto7 schoolsMenlo Park7 schoolsBelmont6 schoolsFoster City6 schoolsAtherton5 schoolsHalf Moon Bay5 schoolsMillbrae5 schoolsHillsborough4 schoolsWoodside3 schoolsBrisbane2 schoolsColma2 schoolsPescadero2 schoolsPortola Valley2 schoolsLa Honda1 schoolMontara1 school

About San Mateo County

San Mateo County is a large California county of about 742,340 residents, home to 176 public schools and roughly 82,403 students.

Looking at the broader picture, census numbers show median household income runs near $158,855, 54% of adults hold a bachelor's degree or higher, and the poverty rate is around 4%. That income level is 78% noticeably above the California median.

In terms of grade levels, San Mateo County consists of 110 elementary schools (40,080 students), 26 middle schools (15,878), 37 high schools (26,401), and 3 combined or other schools.

San Mateo-Foster City is the biggest district by enrollment, covering about 9,906 students across San Mateo County.

Trend over the past 7 years. Combined enrollment now sits at 82,403 students, fell 13% from the 94,520 reported in SY 2017-18. Over that span, San Mateo County closed 9 schools, going from 178 to 169. Demographically, the White share of enrollment contracted from 28% to 22%.

Within the allk12 community for this area, the community for San Mateo County discusses sports rivalries, cross-district programs, and shared facilities. Posts come from current and former families, staff, and alumni.

Frequently asked questions

How many K-12 schools serve San Mateo County?
There are 176 public K-12 schools in San Mateo County, California, with a combined enrollment of about 82,403.
How many high schools are in San Mateo County?
San Mateo County, California has 37 public high schools, serving approximately 26,401 students.
How many middle schools are in San Mateo County?
San Mateo County, California has 26 public middle schools, serving approximately 15,878 students.
How many elementary schools are in San Mateo County?
San Mateo County, California has 110 public elementary schools, serving approximately 40,080 students.
What is the largest school district in San Mateo County?
San Mateo-Foster City is the largest school district in San Mateo County, serving approximately 9,906 students. The county contains 37 school districts overall.
How many people live in San Mateo County?
San Mateo County has roughly 742,340 residents according to the latest Census ACS 5-year estimate.
What is the median household income in San Mateo County?
Median household income in San Mateo County is $158,855, above the California average of $89,387. About 4.0% of residents live below the federal poverty line.
How educated are residents of San Mateo County?
Approximately 53.7% of adults 25 and older in San Mateo County hold a bachelor's degree or higher, according to the Census ACS 5-year estimate.
What share of students in San Mateo County qualify for free or reduced lunch?
Roughly 34.0% of students in San Mateo County public schools qualify for free or reduced-price lunch, a common proxy for low-income enrollment. This is lower than the California county average of 60.6%.
What is the student-teacher ratio in San Mateo County schools?
Across San Mateo County public schools, the enrollment-weighted student-teacher ratio is approximately 20.4 to 1.

San Mateo County school rankings

Largest schoolsAll rankings →
DATA · Census ACS 5-year · NCES Common Core of Data