Big Arm

Census-designated place in Lake County, Montana

Aerial view of Big Arm, Montana
Aerial view: USDA NAIP · USGS The National Map (public domain)

Big Arm is an unincorporated community (census-designated place) in Lake County, Montana, with 218 residents (2020 Census). It sits at 2,953 ft (900 m) above sea level. The nearest town is Lindisfarne, 3.0 miles E.

About Big Arm

Big Arm is a census-designated place (CDP) in Lake County, Montana, United States. As of the 2020 census, Big Arm had a population of 218.

The town is situated on the south side of Big Arm, a large bay on Flathead Lake, hence its name. The name was used by the Kootenai people, who lived there prior to the town being established. The post office opened in 1911, with Marion F. Lamb as postmaster.

Big Arm State Park is located just north of the town.

Text: Wikipedia · CC BY-SA 4.0

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Nearest webcams to Big Arm

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Map of Big Arm

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Big Arm, MT population

Big Arm had 218 residents in the 2020 Census.

2020 Census218
Density40 per sq mi (16 per km²)

Source: U.S. Census Bureau, Decennial Census.

Big Arm at a glance

StateMontana (MT)
CountyLake County
TypeCensus-designated place
Population218 (2020)
Land area5.42 sq mi (14.0 km²)
Elevation2,953 ft (900 m)
Coordinates47.7936° N, 114.2700° W
ZIP code59910
Census code (GEOID)3005800

Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.

Towns near Big Arm

Straight-line distance between town centers.

Frequently asked questions about Big Arm

What county is Big Arm in?

Big Arm is in Lake County, Montana.

What is the population of Big Arm, MT?

218 people lived in Big Arm at the 2020 Census.

What is the ZIP code of Big Arm, MT?

The ZIP code of Big Arm is 59910.

What is the elevation of Big Arm?

2,953 feet (900 m) above sea level.

What towns are near Big Arm?

Lindisfarne (3.0 mi), Elmo (4.4 mi), Dayton (4.9 mi), Kings Point (5.8 mi), Rocky Point (5.8 mi).

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