The City of Longmont is a home rule municipality located in Boulder and Weld counties, Colorado, United States. Longmont is located northeast of the county seat of Boulder and 33 miles north-northwest of the Colorado State Capitol in Denver.
Longmont's population was 98,711 as of the 2020 U.S. Census. Longmont is the 14th most populous city in the state of Colorado.
Longmont is named after Longs Peak, a prominent mountain named for explorer Stephen H. Long that is clearly visible from Longmont, and "mont", from the French word "montagne" for mountain.