The Rotary Club of Castro Valley is a nonprofit organization focused on community service, dedicated to funding local charities. With an operating budget of $83.5K and total revenue of $82.3K for the filing year 2025, the organization relies significantly on a single unknown funder, which contributes $414.5K, representing over 50% of its revenue. For more information, visit their website at www.castrovalleyrotary.org.