Petrolia is located in Texas. Petrolia, Texas has a population of 380. Petrolia is less family-centric than the surrounding county with 17.95% of the households containing married families with children. The county average for households married with children is 30.33%.
The median household income in Petrolia, Texas is $38,125. The median household income for the surrounding county is $69,967 compared to the national median of $69,021. The median age of people living in Petrolia is 55.6 years.
The average high temperature in July is 96.6 degrees, with an average low temperature in January of 29.7 degrees. The average rainfall is approximately 31.8 inches per year, with 1.1 inches of snow per year.