The City of Fort Collins is the Home Rule Municipality that is the county seat and the most populous municipality of Larimer County, Colorado, United States. Fort Collins is the principal city of the Fort Collins, CO Metropolitan Statistical Area and is a major city of the Front Range Urban Corridor. Situated on the Cache La Poudre River along the Colorado Front Range, Fort Collins is located 56 mi (90 km) north of the Colorado State Capitol in Denver. With a 2019 estimated population of 170,243, it is the fourth most populous city in Colorado after Denver, Colorado Springs, and Aurora. Fort Collins is a midsize college city, home to Colorado State University and Front Range Community College's Larimer campus.
Fort Collins is the fourth most populous city in Colorado and the 158th most populous city in the United States. The Census Bureau estimates that the city's population was 161,175 in 2015, the population of the Fort Collins-Loveland Metropolitan Statistical Area was 310,487 (151st most populous MSA), and the population of the Front Range Urban Corridor was 4,495,181.
The median income for a household in the city was $64,459, and the median income for a family was $110,332. Males had a median income of $60,856 versus $48,385 for females. The per capita income for the city was $32,133. About 5.5% of families and 14.0% of the population were below the poverty line, including 8.3% of those under age 18 and 5.8% of those age 65 or over.