Listed here are all GED and HiSET prep class sites and testing facilities in the San Mateo area.
Both exams can be taken online or at one of the state’s certified testing sites. Read more about online testing in the bottom paragraph.
Onsego GED Prep
Pass the GED Test in 2 Months
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It doesn’t matter when you left school.
The HiSET and GED assessments offer adults who quit high school without a diploma the chance to earn an equivalent degree.
Explore the best GED classes online for free on our website to jumpstart your GED prep journey and find out if studying online is right for you.
If yes, continue with Onsego GED Prep Online, an affordable, entirely GED-compliant course as certified by GED Testing Service.
Online GED Classes
A simple and easy way of getting your GED diploma.
If studying under an instructor’s guidance is better for you, contact one of the prep sites listed below.
To learn more about the costs associated with HiSET and GED testing, qualification requirements in California, and so on, check out this post: “GED in California.”
San Mateo GED Prep Sites
San Mateo Adult and Career Education
789 E Poplar Avenue | San Mateo | CA 94401 | Ph: 650 – 558 – 2100
Every year, San Mateo Adult School (a service of the San Mateo Union High School District) serves more than 10,000 students.
The school is committed to addressing the needs of underserved individuals, particularly those economically or academically disadvantaged. The school offers GED classes to qualifying applicants from these communities:
- San Mateo
- Burlingame
- San Bruno
- Millbrae
- Hillsborough
- Foster City
Gateway Community School
35 Tower Road | San Mateo | CA 94402 | Ph: 650 – 598 – 2153
At Gateway, students can work toward their GED exam or attend classes that cover the core subject areas of a high school diploma.
GED Prep Locations around San Mateo
La Costa Adult School
498 Kelly Avenue | Half Moon Bay | CA 94019 | Ph: 650.712.7140
Five Keys @Moonridge (for residents only)
2001 Miramontes Point Road | Half Moon Bay | CA 94019 | Ph: 650.204.0484
Hayward Adult School (The Center for Education & Career)
22100 Princeton Street | Hayward | CA 94541 | Ph: 510.783.4001
You can find all Hayward GED prep locations <- here
Sequoia District Adult School GED Program
3247 Middlefield Road | Menlo Park | CA 94025 | Ph: 650.306.8866 ext. 77905
Five Keys (@JobTrain)
1200 O’Brien Drive | Menlo Park | CA 94025 | Ph: 510.255.0910
Mountain View Adult Education
333 Moffett Boulevard | Mountain View | California 94043 | Ph: 650.940.1333
Los Altos-Mountain View Sylvan Learning Center
2025 West El Camino Real | Mountain View | California 94040 | Ph: 650.417.9952
Palo Alto Adult Education GED Program
50 Embarcadero Road | Palo Alto | California 94301 | Ph: 650.329.3752
Puente Community Resource Center
620 North Street | Pescadero | CA 94060 | Ph: 650.879.1691
The Multicultural Institute
533 Warrington Avenue | Redwood City | CA 94063 | Ph: 650.339.2794
San Bruno County Jail GED Program
One Moreland Drive | San Bruno | CA 94066 | Ph: 650.266.9566
Not open to the public
City College of San Francisco GED Instruction
1170 Market Street | 4th Floor | San Francisco | CA 94102 | Ph: 415.561.1871
For all San Francisco area GED prep facilities, visit San Francisco Area GED Prep Sites
Silicon Valley Adult School GED Classes
760 Hillsdale Avenue | San Jose | CA 95136 | Ph: 408.723.6400/6450
To find out everything about GED classes in and around San Jose, go to San Jose Area GED Classes
South San Francisco Adult Education GED Instruction
825 Southwood Drive | South San Francisco | CA 94080 | Ph: 650-827-8455
What is on the GED Exam
The GED exam has four subtests covering the subjects of
- Language
- Math
- Science
- Social Studies
These sub-exams are independent modules that may be written separately and in any order.
The HiSET has separate reading and writing tests, so five overall, that may also be dealt with individually if you wish.
The HiSET exam is offered on paper and computer, whereas the GED exam is fully computer-based.
Both exams measure knowledge at a level comparable to that of graduating high school seniors.
San Mateo Area GED Testing Centers
San Mateo Adult School (GED)
789 E Poplar Ave | San Mateo | CA 94401 | Ph: 650.558.2100
From there, cities by alphabet
Jefferson Adult School (GED)
699 Serramonte Blvd | Daly City | CA 94015 | Ph: 650.550.7891
Hayward Adult Education (GED)
22100 Princeton St | Hayward | CA 94541 | Ph: 510.783.4001
Sequoia District Adult School (GED & HiSET)
3247 Middlefield Rd | Menlo Park | CA 94025 | Ph: 650.306.8866
Mountain View-Los Altos Adult Education (GED)
333 Moffett Blvd | Mountain View | CA 94043 | Ph: 650.940.1333
San Mateo County Office of Education (HiSET Testing)
101 Twin Dolphin Dr | Redwood City | CA 94065 | Ph: 650.598.2008
Canyon Oaks HiSET Test Center
400 Edmonds Rd | Redwood City | CA 94062 | Ph: 650.780.7500
City College of S. Francisco-Mission (HiSET)
1125 Valencia St | Room 115 | San Francisco | CA 94110 | Ph: 415.561.1824
Mission Neighborhood Centers (El Centro, GED)
1245 Alabama St | San Francisco | CA 94110 | Ph: 415.643.5600
Adult Education South San Francisco (HiSET)
825 Southwood Dr | South S. Francisco | CA 94080 | Ph: 650.877.8844
Online Proctored GED and HiSET Testing
It used to be that online GED or HiSET testing was no option, but a few years back, we saw the advent of online GED and HiSET exams, so those days are over.
Today, students looking to secure their high school equivalency diploma can sit for the HiSET and GED exams online as well.
To learn more about the online GED test, visit ‘The online proctored GED exam.’
For more details about the online HiSET exam, check out ‘The online proctored HiSET exam’.
Please note that if you want to take the GED test online, you’ll first have to achieve passing scores (results in the ‘green’ range) on the GED Ready test.
For each of the GED sub-exams, there is such a test, making it four overall, adding $32 to the total California testing costs, as each GED Ready test costs $7.99.
Free GED Ready Tests
Onsego Advantage students don’t need to buy any GED Ready practice tests because their plans already include four free vouchers for the GED Ready tests.
All Advantage Plans by Onsego include these four free vouchers, some highly effective support courses, access to all GED study materials from day one, and so much more.
These plans are actually very reasonably priced. They start at $79 for Onsego’s 6-month plan, and this option also includes all the bonuses, such as the free GED Ready vouchers!
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Last Updated on March 22, 2026.