Founded on 1861-11-01, Larimer County is one of 64 counties in the state of Colorado. Historically, Larimer County was formed from Created as one of the 17 original counties of the Territory of Colorado. The city of Fort Collins is the county seat. With FIPS code of 69, Larimer County has a population of 362,533 and area of 2,631.75 square miles (6,816 km2).
List of all cities in Larimer County, CO alphabetically
| City/Town | Postal Code | Area Code |
| Bellvue, CO | 80512 | 970 |
| Berthoud, CO | 80513 | 970 |
| Colorado State University, CO | 80523 | 970 |
| Drake, CO | 80515 | 970 |
| Estes Park, CO | 80511 | 970 |
| 80517 | 970 | |
| Fort Collins, CO | 80521 | 970 |
| 80522 | 970 | |
| 80523 | 970 | |
| 80524 | 970 | |
| 80525 | 970 | |
| 80526 | 970 | |
| 80527 | 970 | |
| 80528 | 970 | |
| 80553 | 970 | |
| Glen Haven, CO | 80532 | 970 |
| Laporte, CO | 80535 | 970 |
| Livermore, CO | 80536 | 970 |
| Loveland, CO | 80537 | 970 |
| 80538 | 970 | |
| 80539 | 970 | |
| Masonville, CO | 80541 | 970 |
| Red Feather Lakes, CO | 80536 | 970 |
| 80545 | 970 | |
| Rocky Mountain National Park, CO | 80517 | 970 |
| Teledyne Water Pik, CO | 80553 | 970 |
| Timnath, CO | 80547 | 970 |
| Virginia Dale, CO | 80536 | 970 |
| Wellington, CO | 80549 | 970 |
| Windsor, CO | 80528 | 970 |
Map of Cities in Larimer County, CO
