California has 162,000+ registered nonprofits. Most lists will give you 50 names and no useful information. This one picks 10 organizations that are big enough to be credible, specific enough to be useful, and honest about what volunteering and donating actually look like on the ground.
These organizations are verified 501(c)(3)s with publicly available financials. Donation links go directly to the organizations — this site earns no referral fees.
The LA Regional Food Bank has distributed over one billion meals since it opened in 1973 — that number passed sometime in the 2010s and they're still counting. Today it works with 665 partner agencies operating 880 distribution sites across LA County, which means most neighborhoods in a county of 10 million people have somewhere nearby to get food. Its main warehouse is in Los Angeles; volunteers sort and pack there in 3-hour shifts, and the operation is large enough that you can usually book a spot within a week.
About 1 in 5 LA County residents faces food insecurity. The food bank runs mobile pantries in harder-to-reach areas, home delivery for seniors and people with disabilities, and a school pantry program. Cash donations go further than food donations — $1 provides 4 meals through their purchasing relationships.
The SF-Marin Food Bank distributes 48 million pounds of food per year — roughly 100,000 meals a day — through 450+ partner organizations across San Francisco and Marin County. It's one of the more unusual food banks in the country because it operates in a city with some of the highest rents on earth, where food insecurity and wealth exist a few blocks from each other. The organization has been expanding its home delivery and senior services considerably in recent years.
Volunteers pack grocery bags at their SF and Marin warehouses. Shifts are 2–3 hours, registration is online, and they're booked out a few weeks on popular weekend dates. Corporate group volunteer events are available for teams of 10–30 people.
Habitat LA has built or repaired over 1,700 homes since 1990, which sounds like a lot until you realize LA County has a housing shortage measured in the hundreds of thousands of units. They operate in South LA and the San Fernando Valley, working with families earning 50–120% of median income — the demographic that too often gets left out of both affordable housing programs and the conventional mortgage market.
Build days run on weekends and require no construction experience. You show up, someone shows you how to swing a hammer safely, and the family you're building for is often on site working alongside volunteers. That part is worth knowing — Habitat homeowners contribute several hundred hours of "sweat equity" as part of earning the home.
The California Community Foundation is a public charity that manages charitable funds on behalf of donors and distributes grants to LA County nonprofits. It's less of a direct service organization and more of a funding infrastructure for the region — since 1915, CCF has distributed over $3 billion to nonprofits across Los Angeles. Its disaster relief fund activates quickly after wildfires, earthquakes, and other emergencies affecting the LA region.
For individual donors: CCF is useful if you want to give to LA broadly and trust a professional grantmaking staff to distribute strategically. You can also set up a named fund (essentially a private foundation without the paperwork) for donations of $25,000 or more. For smaller donors, their online giving portal lets you search and give directly to any CCF-approved nonprofit.
SVCF is one of the largest community foundations in the world — $10 billion in assets, most of it donated by tech industry employees and founders using donor-advised funds. In practice, this means the Bay Area has a significant pool of philanthropic capital that gets deployed to local nonprofits, international causes, and everything in between. SVCF grants heavily in education, immigration services, housing, and early childhood development across San Mateo and Santa Clara Counties.
If you work in tech and your company offers a donor-advised fund option, SVCF is one of the major administrators for that. If you're an individual looking to donate smaller amounts, their website lists grantee organizations you can give to directly. They're less useful for hands-on volunteering and more useful for strategic giving.
Feeding San Diego (formerly Jacobs & Cushman San Diego Food Bank) is the primary hunger-relief organization for San Diego County, distributing food to roughly 370,000 people per month through a network of 200+ community partners. San Diego County is home to about 3.3 million people and has a significant military and veteran population — Feeding San Diego runs specific programs targeting food-insecure veterans and military families.
Volunteer shifts at their distribution warehouse run on weekday mornings and some weekends. They also coordinate mobile food distributions across the county. Corporate food drives are a significant part of their supply chain — companies in San Diego frequently partner with them for team volunteering and donation matching.
The San Diego Humane Society runs shelters across San Diego County — including campuses in San Diego, Oceanside, El Cajon, Escondido, and Ramona — and is the county's animal control contractor for several jurisdictions. It's a substantial operation that handles both pet adoption and law enforcement of animal cruelty cases. Their save rate is among the highest in California for a shelter of this size.
Volunteer roles include dog walking, cat socialization, fostering, and event support. The foster program is how they handle neonatal kittens and animals recovering from injury or illness who aren't ready for the adoption floor. Applications are online; orientation is required before your first shift.
The Red Cross operates multiple regional chapters across California — Los Angeles, San Diego/Imperial Counties, Gold Coast (Ventura/Santa Barbara), and several Northern California regions. California is one of the most disaster-prone states in the country: wildfires, earthquakes, mudslides, and flooding all trigger Red Cross responses. After the 2025 LA wildfires, Red Cross opened emergency shelters and provided assistance to tens of thousands of displaced residents across LA County.
Blood donation is the easiest immediate contribution — California has blood drives at Red Cross centers throughout the state year-round. Disaster volunteers go through more extensive training but are among the most impactful roles the organization offers. CPR and first aid classes are open to the public at most chapters.
Goodwill of Orange County is an independent affiliate of the Goodwill network — separate from LA or San Diego chapters — and uses retail revenue from its thrift stores to fund job training and employment services for people with disabilities, those leaving incarceration, veterans, and others facing employment barriers. Orange County has about 3.2 million residents and a competitive job market that can be hard to navigate without support.
Donating goods to their stores directly funds the employment programs — the stores sell donated items and use proceeds for job placement. Donation drop-off hours vary by location; their website has a store finder. Monetary donations to specific programs (veterans services, disability employment) are also accepted online.
California has 280 state parks — the largest state park system in the country — and the California State Parks Foundation is the nonprofit that raises private funds to support them when state budgets fall short. That happens more than it should. In recent years, the Foundation has funded trail restoration, visitor programs, and wildfire recovery work at parks across the state. It's the rare environmental nonprofit where a donation translates almost directly into a park staying open or a trail getting rebuilt.
Membership starts at $35/year and includes discounts at park stores. The Foundation also coordinates volunteer trail maintenance days at state parks through their Parks Connect program. If you use California's parks — and most Californians do — this is one of the more direct ways to give back.
California's sheer size means nonprofits look very different depending on where you are. Here's what's strongest in each part of the state.
LA Regional Food Bank, Habitat for Humanity LA, California Community Foundation, LA Mission (homelessness), Children's Hospital LA Foundation, United Way of Greater LA. LA County alone has 10 million residents and a nonprofit sector that matches that scale.
SF-Marin Food Bank, Silicon Valley Community Foundation, Second Harvest of Silicon Valley, Glide Foundation, Hamilton Families, East Bay Community Foundation. Bay Area philanthropy is heavily shaped by tech wealth and donor-advised funds.
Feeding San Diego, San Diego Humane Society, United Way of San Diego County, Serving Seniors, Veterans Village of San Diego. Military-connected charities are disproportionately strong here given the large base presence.
American Red Cross California chapters, California Community Foundation Wildfire Relief Fund, United Way California Capital Region, Direct Relief (Santa Barbara-based, national reach). Wildfires are now a year-round concern across much of the state.
San Diego Humane Society, Pasadena Humane, Humane Society Silicon Valley, SPCA for Monterey County, Helen Woodward Animal Center (Rancho Santa Fe). California has some of the highest-volume animal shelters in the country.
California State Parks Foundation, Sempervirens Fund (redwoods), California Wilderness Coalition, Surfrider Foundation (San Clemente), Environmental Defense Fund California. The state's environmental sector is one of the most active in the US.
California has its own charity registration system on top of the federal IRS process. Any organization soliciting donations in California must register with the California Attorney General's Registry of Charities and Fundraisers at oag.ca.gov. This is separate from 501(c)(3) status — an organization can be federally tax-exempt but not properly registered in California.
| Resource | What to Check | URL |
|---|---|---|
| CA Attorney General Registry | Active registration in California, financial filings | oag.ca.gov/charities |
| IRS Tax Exempt Search | Federal 501(c)(3) status, revocation history | apps.irs.gov/app/eos |
| Charity Navigator | Financial health score, accountability ratings | charitynavigator.org |
| GuideStar / Candid | Form 990 filings, executive compensation | guidestar.org |
| ProPublica Nonprofit Explorer | Full 990 documents, searchable financials | propublica.org/nonprofits |
A quick rule: if an organization is running urgent donation appeals online but has no California registration, no publicly available 990, and no street address — don't give. Wildfire and disaster charities in particular attract scammers who set up convincing websites within days of a major event.
Detailed profiles for the major California nonprofits we cover — each with contact information, donation links, and descriptions of programs.
Last updated May 2026. Statistics sourced from Independent Sector, IRS, and California Attorney General's Registry. We do not receive compensation for featuring any organization. To report an error: [email protected]