ZIP Code 95558
About Petrolia
Petrolia is an unincorporated community in Humboldt County, California, United States, United States, 10 miles (16 km), southeast of Cape Mendocino. The site of the first oil well drilled in California, it lies at an elevation of 121 feet (37 m) above sea level, within ZIP Code 95558, with an area code 707.
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Area Profile
US Census (ACS 5-year · Gazetteer)
244
population
$51,250
median household income
1
people / sq mi
62.6
median age
193
housing units
132
households
168.4
land area (sq mi)