Redwood Empire and Mendocino Lake Chapter

For schools in the following ZIP codes:

94508, 94558-59, 94567, 94574-76, 94928, 94952, 95401-09, 95412, 95421, 95425-36, 95441-50, 95462-66, 95472-82, 95492-97

2024 Competition

Date and Location

Sunday, February 11, 2024

Sonoma Country Day School
4400 Day School Place
Santa Rosa, CA 95403

Interim Coordinator

Bill Angeloni, P.E.

Additional Contacts

If you have questions about the California MATHCOUNTS program in your area, please send a detailed email to CSPEEF Executive Director Jeanne Marie Tokunaga, CAE, at

If your question requires immediate assistance, please contact the National MATHCOUNTS Office at 703-684-2828 or

2023 Competition

Advancing Students

For the Redwood Empire Mendocino Lake Chapter, the members of the top team and the top 2 finishers NOT on an advancing team advance to the Northern California State Competition.

Student School
Team Daniel Chang Rincon Valley Middle School
Simon Terrell
Team Sungye Kim Rincon Valley Middle School
Team Jocelyn Wang Rincon Valley Middle School
Team Alexander Yoon Rincon Valley Middle School
Ind. Jessie Hu Rincon Valley Middle School
Ind. Joseph Collins Non-School Competitor

MATHCOUNTS of California is sponsored by:


MATHCOUNTS of California relies on local donations to run chapter competitions. Please help us grow the appreciation of math and problem solving among California middle school students. For a donation to benefit the entire state, click here.

To donate by check, please make the check out to:

MATHCOUNTS of California
333 University Ave., Suite 200
Sacramento, CA 95825

Please put the competition name in the memo line.

A receipt will be sent to the address on the check.