Longmont, Colorado

Longmont, Colorado
The Longmont Safety and Justice Center
Location of the City of Longmont in Boulder and Weld counties, Colorado
Longmont
Location of the City of Longmont in the United States
Coordinates: 40°10′18″N 105°6′33″W / 40.17167°N 105.10917°W / 40.17167; -105.10917
Country United States
State Colorado
CountiesBoulder County
Weld County
CityLongmont
Founded1871
IncorporatedNovember 15, 1885
Named afterStephen Harriman Long and Longs Peak
Government
  TypeHome rule municipality
  MayorJoan Peck (List)
Area
  Total
78.74 km2 (30.40 sq mi)
  Land74.54 km2 (28.78 sq mi)
  Water4.26 km2 (1.64 sq mi)
Elevation
1,518 m (4,981 ft)
Population
 (2020)
  Total
98,885
  Density1,327/km2 (3,436.1/sq mi)
DemonymLongmonter
Time zoneUTC−7 (MST)
  Summer (DST)UTC−6 (MDT)
ZIP Codes
80501–80504
Area code(s)303/720
FIPS code08-45970
GNIS feature ID2410869
Websitewww.longmontcolorado.gov

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).