Oil City is a somewhat small city located in the state of Pennsylvania. With a population of 9,368 people and four associated neighborhoods, Oil City is the 119th largest community in Pennsylvania. Oil City has a large stock of pre-World War II architecture, making it one of the older and more historic cities in the country.

Compared to the rest of the country, citizens of Oil City spend much less time in their cars: on average, their commute to work is only 18.94 minutes. This also means that noise and pollution levels in the city are less than they would otherwise be.

The percentage of adults in Oil City with college degrees is slightly lower than the national average of 21.84% for all communities. 16.45% of adults in Oil City have a bachelor's degree or advanced degree.

The per capita income in Oil City in 2022 was $28,220, which is low income relative to Pennsylvania, and lower middle income relative to the rest of the US. This equates to an annual income of $112,880 for a family of four. However, Oil City contains both very wealthy and poor people as well.

The people who call Oil City home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Oil City residents report their race to be White, followed by Asian. Important ancestries of people in Oil City include German, Irish, English, Polish, and Italian.

The most common language spoken in Oil City is English. Other important languages spoken here include German/Yiddish and Japanese.