An independent day school for grades 6-12

Contact Us

Main Office
Phone:   (650) 342-4175
Fax:        (650) 342-7623

Admission
Middle School (MS):  (650) 645-1011
Upper School (US):  (650) 375-5411
Main Fax: (650) 342-7611
Email:     admission@csus.org

Attendance
MS: (650) 645-1000
US: (650) 375-5454
attendance@csus.org

Middle School campus
10 Davis Drive
Belmont, CA  94002
(650) 645-1000

Upper School campus
400 Uplands Drive
Hillsborough, CA  94010
(650) 342-4175

Main Mailing Address and
Administrative Offices

400 Uplands Drive
Hillsborough, CA 94010

Faculty & Staff
To email a faculty or staff member, please use the following guideline:
[FIRST LETTER of first name + complete LAST NAME]@csus.org

General inquiries:       info@csus.org
Website comments:   webadmin@csus.org

Crystal Springs Uplands School


General: (650) 342-4175 | info@csus.org
Admission Inquiries: admission@csus.org
Middle School
10 Davis Drive
Belmont, CA 94002
(650) 645-1000
Upper School
400 Uplands Drive
Hillsborough, CA 94010
(650) 342-4175