
Oil City
- County:
- Venango County
- County Seat:
- No
- Area (mi²):
- 4.493
- State:
- Pennsylvania
Oil City is a city located in Venango County, Pennsylvania. Oil City has a 2025 population of 9,230. Oil City is currently declining at a rate of -0.77% annually and its population has decreased by -3.75% since the most recent census, which recorded a population of 9,590 in 2020.
The average household income in Oil City is $72,912 with a poverty rate of 17.97%. The median age in Oil City is 42.5 years: 39.2 years for males, and 43.4 years for females.