Montpelier is a city in Bear Lake County, Idaho, United States. The population was 2,538 at the 2019 estimation, down from 2,597 in 2010 census. The city is the largest community in the Bear Lake Valley, a farming region north of Bear Lake in southeastern Idaho along the Utah border. It was settled in 1863 by Mormon pioneers on the route of the Oregon Trail. Nearby to the east is the border with Wyoming.

Bear Lake County is a county in the U.S. state of Idaho. As of the 2020 United States Census the county had a population of 6,372. The county seat is Paris, and Montpelier is the largest city.