Longmont, Colorado
Longmont is a city in Boulder County, Colorado, with an estimated population of 98,630 in 2023. It sits at 40.1699, -105.1018 in the America/Denver time zone.
| Field | Value |
|---|---|
| Place name | Longmont |
| Type | city |
| State | Colorado (CO) |
| County | Boulder County |
| Population (2023 est.) | 98,630 |
| Land area | 29.04 sq mi (75.21 km²) |
| Coordinates | 40.1699, -105.1018 |
| Time zone | America/Denver |
| ZIP codes | 80501, 80502, 80503, 80504 |
| Telephone area codes | 303, 720 |
This place also extends into Weld County.
ZIP codes and area codes for Longmont
Longmont covers 4 ZIP codes: 80501, 80502, 80503, 80504. Telephone area codes serving the area: 303, 720. Browse all ZIP codes in Colorado for the full list.
Where is Longmont?
Longmont is located in Colorado, in Boulder County. The coordinates above can be pasted directly into any map service. The nearest indexed places are listed below, which is a useful check when two states share a place name.
Nearby places
Mead 12 km · COFrederick 13 km · COFirestone 13 km · COLyons 15 km · COErie 15 km · COBerthoud 17 km · CODacono 18 km · COLafayette 19 km · CO
Other places in Boulder County
Boulder 105,898Lafayette 30,439Louisville 20,390Superior 13,361Lyons 2,151Nederland 1,488Jamestown 245
Related
Frequently asked questions
What county is Longmont, CO in?
Longmont is in Boulder County, Colorado.
What is the population of Longmont, CO?
The 2023 Census Bureau estimate is 98,630.
What time zone is Longmont in?
Longmont is in the America/Denver time zone.