COUNTY / REGIONAL
- County of Humboldt- Community Development Services Department
- County of Humboldt- Web GIS Portal
- Humboldt County Association of Governments (HCAOG)
- Humboldt Local Agency Formation Commission
- Imagine Humboldt Regional Blueprint Project
CITIES
- Arcata- Community Development Department
- Blue Lake
- Eureka- Community Development Department
- Ferndale
- Fortuna- Community Development Department
- Rio Dell- Planning & Building Departments
- Trinidad- Planning & Building Services
SPECIAL DISTRICTS
- Humboldt Bay Recreation & Conservation District
- Humboldt Bay Municipal Water District
- Humboldt Community Services District
- McKinleyville Community Services District
TRIBAL GOVERNMENTS
- Big Lagoon Rancheria
- Big River Band of the Rohnerville Rancheria
- Blue Lake Rancheria
- Hoopa Valley Tribe
- Trinidad Rancheria
- Wiyot Tribe