Kalispell is located in Flathead County. About 24,558 people live here (as of 2020). Between 2010 and 2020, the population grew from 19,927 to 24,558. The region is at 901 meters above sea level. The area covers about 30.9 square kilometers. There are about 1.011 streets in Kalispell. The postal codes are 59901–59904. The dialing code is 406. Kalispell is seat of Flathead County, Montana, United States. Among other things, Kalispell has hotels, restaurants, cafés, supermarkets, clothing Stores, museums, banks, hairdressers, dentists, doctors and pharmacies. More information at
www.kalispell.com.