CDP
Fieldbrook
Fieldbrook is a community name the Census tracks. It helps you name the place, but it usually is not city hall. Start with the county layer unless an official local district says otherwise.
Starting point
Start with the county unless an official district says otherwise.
A Census-designated place is a useful local name, but it usually does not have its own city hall. For permits, records, taxes, courts, and many services, begin with the county layer.
Special districts, utilities, schools, fire agencies, parks, water agencies, coastal rules, and state maps can still control a specific issue.
2025 population
Not available
Land area
10.468 sq mi
Water area
0.004 sq mi
Directory notes
Local layers to keep on the same page.
Treat this as a community name.
A CDP can be real and useful on the ground, but it normally does not mean there is a city hall for permits, rent rules, business licenses, or local code.
Start with the county.
Humboldt County is the county layer shown in the Census place-county reference data.
Watch for districts.
Water, sewer, fire, school, parks, utilities, coast, wildfire, and special taxes can still belong to a district or state agency.
County layer
County shown for Fieldbrook
Practical notes
Office, map, permit, and paperwork notes for Fieldbrook
Almanac notes
Stories and local context near Fieldbrook
County layer · History and culture
Blue Lake keeps its Mad River railroad story close
Blue Lake grew from a small Mad River resort idea into a railroad and logging town, and the old depot museum still makes that story easy to picture.
County layer · History and culture
Fortuna's Friendly City story starts in the Eel River Valley
Fortuna grew from Springville, mills, rail, the Eel River Valley, and redwood-country travel into Humboldt County's Friendly City.
County layer · History and culture
Rio Dell sits where redwoods, bluffs, and the Eel River meet
Rio Dell's place story comes from Eagle Prairie, the Eel River, redwood country, Scotia next door, and a small downtown that grew fast enough to incorporate.
County layer · History and culture
Arcata Marsh turns a city chore into a wildlife walk
Arcata Marsh and Wildlife Sanctuary mixes wastewater treatment, constructed wetlands, birding, trails, mudflats, sloughs, and a practical civic idea that became a beloved outdoor place.
County layer · History and culture
Eureka's Carson Mansion is redwood money turned into architecture
The Carson Mansion in Eureka grew from Humboldt County redwood wealth into one of California's most recognizable Victorian buildings.
County layer · History and culture
Sue-meg State Park carries coast, redwoods, and Yurok place memory
Sue-meg State Park near Trinidad blends Agate Beach, forested headlands, tidepools, trails, camping, and Sumeg Village, a reconstructed Yurok village with deep local meaning.
County layer · History and culture
Trinidad Head Lighthouse uses a small tower on a big headland
Trinidad Head Lighthouse shows how a modest tower can matter when it sits high above a rugged harbor, sea stacks, tribal homelands, and a far-north coast route.
County layer · Outdoors
Headwaters Forest gives Humboldt a careful old-growth redwood walk
Headwaters Forest Reserve protects coastal redwood forest near Eureka, with Elk River Trail access, sensitive habitat, storm-season cautions, and public-use limits.