Lafayette
- County:
- Boulder County
- County Seat:
- No
- Area (mi²):
- 9.231
- State:
- Colorado
Lafayette is a city located in Boulder County, Colorado. Lafayette has a 2026 population of 30,587. Lafayette is currently growing at a rate of 0.14% annually and its population has increased by 0.61% since the most recent census, which recorded a population of 30,403 in 2020.