Lakewood is a Home Rule Municipality that is the most populous city in Jefferson County, Colorado, United States. Lakewood is the fourth most populous city in the State of Colorado and the 164th most populous city in the United States. The City of Lakewood was incorporated in 1969. At the time of incorporation the city population was already over 90,000, making Lakewood one of the largest cities, at the time of original incorporation, in the history of the United States.

The urban/suburban development of the community known as Lakewood was begun in 1889 by Charles Welch and W.A.H. Loveland, who platted a 13-block area along Colfax Avenue west of Denver in eastern Jefferson County. Loveland, the former president of the Colorado Central Railroad, retired to the new community of Lakewood after many years of living in nearby Golden. Lakewood's economy is diverse while the largest employers are government. The Denver Federal Center employs about 6,200 people and The Jefferson County R-1 school district employs 3,930. Gambro, a medical devices manufacturer, employs 1,654 people.

Belmar is a new modern main street with a mix of retail and residential buildings that replaced the old Villa Italia Mall.