Petrolia California Map

About Petrolia, California

Petrolia is a locality in Humboldt County, California, United States. It is a small community with a population of 480. The population density is 5.0 people per km². Petrolia is located at 40.3254°N, 124.2870°W. It observes the Pacific Time (America/Los_Angeles) timezone. ZIP code: 95558.

Petrolia lies where the Mattole River spills its secrets into the Pacific, a place of perpetual mist and the sharp tang of salt. It lies 33.6 miles south of Eureka, CA (from Eureka, CA: bearing 191°T), and is situated 15.3 miles south-west of Rio Dell. The landscape here is a study in greens so deep they verge on black, cloaked in the ancient, patient embrace of redwood forests that climb the steep hillsides like a forgotten army. Fog, a constant companion, softens the edges of the world, muffling the sounds of the wind in the Sitka spruce and leaving a damp kiss on everything it touches. The air itself feels thick, a breathing entity carrying the scent of decaying leaves, damp earth, and the distant, briny breath of the ocean. Roads here are narrow, serpentine ribbons that twist through the dense canopy, revealing glimpses of the broad, grey river as it meanders toward the sea. This is a place shaped by ambition and the wild, untamed spirit of the coast. Petrolia’s history is intertwined with the scent of oil, a fleeting boom that once promised fortune and left behind a quiet resilience. The local economy now leans into the land’s bounty, with small-scale farming and the enduring allure of its wild beauty drawing a hardy, independent sort of soul. The Mattole River, the lifeblood of this valley, is a constant presence, its currents shaping the land and providing a watery artery for the region. The remnants of a grander past are subtle, a weathered barn here, a forgotten fence line there, whispering stories to those who pause long enough to listen.

About This Petrolia Map Page

This page provides an interactive Google map of Petrolia, California with street, satellite and terrain views and integrated Street View imagery. Live weather conditions are sourced directly from the National Weather Service, with current observations and a 7-day forecast also powered by Open-Meteo. Real-time local news and world news feeds keep the page current, while a Wikipedia summary or an editorially written description provides background on Petrolia and Humboldt County.

Detailed location data for Petrolia includes the ZIP code (95558), telephone area code (530), county seat of Humboldt County (Eureka), and school district assignment. These are among the most commonly searched location details for any US city or town.

Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity — ensuring the correct Petrolia is identified even where the name is shared across multiple counties or states. Population figures are sourced from the 2020 US Census.