Fort St. John is a city located in northeastern British Columbia, Canada. It is situated on the Peace River, and is the largest city in the Peace River Regional District. Fort St. John is known for its natural beauty and resource-based economy, with industries such as oil and gas, forestry, and agriculture playing a prominent role in the city's economy. The city has a population of approximately 20,155 people as of 2016. It is also known for its outdoor recreational opportunities, including hiking, boating, fishing, and skiing.