Petrolia is located in California. Petrolia, California has population of 398. Petrolia is less family-centric than the surrounding county with 23% of the households with children.
The median household income in Petrolia, California is $56,562. The median household income for the surrounding county is $51,451 compared to the national median of $66,222. The median age of people living in Petrolia is 46.9 years.
The average high temperature in July is 69.8 degrees, with an average low temperature in January of 40 degrees. The annual precipitation is 48.47.
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