Longmont, Colorado
| Longmont, Colorado | |
|---|---|
| The Longmont Safety and Justice Center | |
| Coordinates: 40°10′18″N 105°6′33″W / 40.17167°N 105.10917°W | |
| Country | United States | 
| State | Colorado | 
| Counties | Boulder County Weld County | 
| City | Longmont | 
| Founded | 1871 | 
| Incorporated | November 15, 1885 | 
| Named after | Stephen Harriman Long and Longs Peak | 
| Government | |
| • Type | Home rule municipality | 
| • Mayor | Joan Peck (List) | 
| Area | |
|  • Total | 78.74 km2 (30.40 sq mi) | 
| • Land | 74.54 km2 (28.78 sq mi) | 
| • Water | 4.26 km2 (1.64 sq mi) | 
| Elevation | 1,518 m (4,981 ft) | 
| Population  (2020) | |
|  • Total | 98,885 | 
| • Density | 1,327/km2 (3,436.1/sq mi) | 
| Demonym | Longmonter | 
| Time zone | UTC−7 (MST) | 
| • Summer (DST) | UTC−6 (MDT) | 
| ZIP Codes | 80501–80504 | 
| Area code(s) | 303/720 | 
| FIPS code | 08-45970 | 
| GNIS feature ID | 2410869 | 
| Website | www | 
Longmont is a home rule municipality located in Boulder and Weld counties, Colorado, United States. Its population was 98,885 as of the 2020 U.S. Census. Longmont is located northeast of the county seat of Boulder. It is named after Longs Peak, a prominent mountain that is clearly visible from the city (mont means "mountain" in French).