Commerce City is a Home Rule Municipality located in Adams County, Colorado, United States. Commerce City is a northern suburb of Denver and as of 2019 is the 18th most populous municipality in Colorado. The city population was 45,913 at the 2010 United States Census, a population increase of 118.7% in the ten years since the 2000 census.
Commerce City is a mixed residential and industrial community that is known for an oil refinery with a capacity of 90,000 barrels per day (14,000 m3/d), operated by Suncor. Dick's Sporting Goods Park, a soccer stadium in Commerce City, hosts the Colorado Rapids of Major League Soccer.
In 1859 after fighting in Bleeding Kansas, pro-slavery John D. "Colonel Jack" Henderson built a ranch, trading post, and hotel on Henderson Island in the South Platte River in Arapahoe County, Kansas Territory north of Denver, from which he sold meat and provisions to gold seekers on their way up the South Platte River Trail to the gold fields during the Pikes Peak Gold Rush. Henderson Island was the first permanent settlement in the South Platte River Valley between Fort Saint Vrain in the Nebraska Territory and the Cherry Creek Diggings in the Kansas Territory. Henderson Island is today the site of the Adams County Regional Park and Fairgrounds.
Among the first establishments in the modern Commerce City were cemeteries. Riverside Cemetery, founded in 1876, is located in the city's southwest corner at East 52nd Avenue and Brighton Boulevard. Rose Hill Cemetery, in the heart of historic Commerce City, was established in 1892 on what at the time was an open plain by the United Hebrew Cemetery Association.