Nonprofits in Arcata, CA
501(c)(3) nonprofit organizations — IRS Exempt Organizations Business Master File (2026-02)
Overview
Source: IRS Exempt Organizations BMFTotal Nonprofits
138
Total Assets
$417.6M
Orgs with >$1M Assets
20
Per 10K Residents
74.3
nonprofits
-9.6% vs 10K-25K avg
Nonprofits by Category
Source: IRS / NTEE ClassificationEducation24
Arts & Culture15
Environment15
Recreation & Sports11
Religion8
Animal-Related7
Human Services7
Philanthropy7
Health Care5
Food & Agriculture3
Youth Development3
Mental Health2
Voluntary Health2
Civil Rights2
Community Improvement2
Crime & Legal1
Housing & Shelter1
Public Safety1
Nonprofits per 10K Residents vs Similar Cities
Source: IRS BMF + Census ACSCompared to cities with population 10,000 - 25,000
Largest Nonprofits in Arcata
Source: IRS Exempt Organizations BMF| Organization | Category | Assets | Income | Est. |
|---|---|---|---|---|
| OPEN DOOR COMMUNITY HEALTH CENTERS | Health Care | $100.5M | $115.5M | 1971 |
| UNITED INDIAN HEALTH SERVICES INC | Health Care | $81.4M | $61.7M | 1970 |
| CAL POLY HUMBOLDT FOUNDATION | Education | $70.5M | $38.4M | 1947 |
| INTERNEWS NETWORK | Arts & Culture | $37.7M | $111.3M | 1987 |
| CAL POLY HUMBOLDT SPONSORED PROGRAMS FOUNDATION | Education | $34.3M | $61.0M | 1952 |
| ARCATA HOUSE PARTNERSHIP | Housing & Shelter | $18.4M | $6.4M | 2014 |
| SCHMIDBAUER FAMILY FOUNDATION | Philanthropy | $18.0M | $1.4M | 2014 |
| HUMBOLDT STATE UNIVERSITY CENTER BOARD OF DIRECTOR | Education | $7.4M | $355K | 1970 |
| INSTITUTE FOR WILDLIFE STUDIES | Animal-Related | $6.8M | $2.9M | 1979 |
| CAL POLY HUMBOLDT REAL ESTATE HOLDINGS | Education | $6.2M | $171K | 2016 |
| NORTHCOAST CHILDRENS SERVICES INC | Education | $4.8M | $14.3M | 1973 |
| LAUREL TREE CHARTER SCHOOL | Education | $4.0M | $3.3M | 2013 |
| CONSERVATION STRATEGY FUND | Environment | $3.7M | $3.7M | 1998 |
| FRIENDS OF THE DUNES | Environment | $3.4M | $1.6M | 1996 |
| WISDOM OF THE HEART CHURCH | Religion | $2.5M | $905K | 2004 |
| SISKIYOU LAND CONSERVANCY | Environment | $1.6M | $555K | 2004 |
| BREAST AND GYN HEALTH PROJECT | Health Care | $1.3M | $1.0M | 2003 |
| FUENTE NUEVA CHARTER SCHOOL | Education | $1.2M | $2.8M | 2008 |
| COASTAL GROVE CHARTER SCHOOL | Education | $1.1M | $4.1M | 2008 |
| UNION STREET CHARTER | Education | $1.0M | $1.6M | 2007 |
| PACIFIC COAST FISH WILDLIFE AND WETLANDS ASSOC | Environment | $920K | $1.6M | 1996 |
| QUEER HUMBOLDT | Civil Rights | $867K | $1.5M | 2006 |
| EVOLVE YOUTH SERVICES | Youth Development | $813K | $2.4M | 2016 |
| ASSOCIATED STUDENTS OF CAL POLY HUMBOLDT | Youth Development | $670K | $899K | 1991 |
| NORTH COAST RAPE CRISIS TEAM | — | $589K | $1.5M | 1982 |
| NORTH COAST GROWERS ASSOCIATION | Food & Agriculture | $589K | $1.9M | 2009 |
| FRIENDS OF THE EEL RIVER | Environment | $582K | $348K | 1999 |
| NORTHCOAST PREPARATORY & PERFORMING ARTS ACADEMY | Education | $558K | $1.8M | 2007 |
| ENVIRONMENTAL PROTECTION INFORMATION CENTER INC | Environment | $526K | $478K | 1990 |
| ADULT DAY HEALTH CARE OF MAD RIVER | Human Services | $470K | $740K | 1986 |
| NORTHCOAST ENVIRONMENTAL CENTER | Environment | $447K | $253K | 1971 |
| TRILLIUM CHARTER SCHOOL | Education | $412K | $808K | 2008 |
| EQUINOX CENTER FOR EDUCATION | Education | $401K | $116K | 1971 |
| ROAD RUNNERS CLUB OF AMERICA | — | $370K | $382K | 1976 |
| CANNABIS FOR CONSERVATION | Environment | $357K | $1.2M | 2018 |
| PLAYHOUSE ARTS | Arts & Culture | $317K | $802K | 2008 |
| BIRD ALLY X | Animal-Related | $317K | $312K | 2012 |
| CENTRO DEL PUEBLO MOVIMIENTO INDIGENA MIGRANTE | Human Services | $316K | $460K | 2022 |
| REALGIRL FOUNDATION | Youth Development | $312K | $312K | 2014 |
| OPEN DOOR CAPITAL SUPPORT | Philanthropy | $268K | $6K | 2015 |
| CREATIVE SANCTUARY | Arts & Culture | $209K | $360K | 2015 |
| MAD RIVER COMMUNITY HOSPITAL VOLUNTEERS | — | $198K | $135K | 1987 |
| COASTAL GROVE CHARTER SCHOOL PARENT ORGANIZATION | Education | $187K | $166K | 2008 |
| HUMBOLDT WATERKEEPER | Environment | $126K | $179K | 2023 |
| EXITHEATRE | Arts & Culture | $120K | $114K | 1985 |
| PACIFIC UNION SCHOOL PTO | Education | $114K | $29K | 2013 |
| HUMBOLDT LIGHT OPERA COMPANY | Arts & Culture | $103K | $145K | 1979 |
| MAD RIVER YOUTH SOCCER LEAGUE INC | Recreation & Sports | $87K | $204K | 2016 |
| COALITION FOR RESPONSIBLE TRANSPORTATION PRIORITIES | Community Improvement | $75K | $92K | 2020 |
| INTERNATIONAL MOUNTAIN BICYCLING ASSOCIATION | Recreation & Sports | $65K | $91K | 2016 |
Arcata, CA has 138 registered 501(c)(3) nonprofit organizations with combined assets of $417.6M. The most common category is Education, with 24 organizations. 20 nonprofits have assets exceeding $1 million. That works out to 74.3 nonprofits per 10,000 residents. The oldest active nonprofit dates back to 1941.