Map of Big Arm CDP

Big Arm is a census-designated place (CDP) in Lake County, Montana, United States. The population was 177 at the 2010 census, up from 131 in 2000.

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.

Big Arm CDP overview:
Name:	Big Arm CDP
LSAD Code:	57
LSAD Description:	CDP (suffix)
State:	Montana
County:	Lake County
Elevation:	2,953 ft (900 m)
Total Area:	5.42 sq mi (14.03 km²)
Land Area:	5.42 sq mi (14.03 km²)
Water Area:	0.00 sq mi (0.00 km²)
Total Population:	218
Population Density:	40.23/sq mi (15.53/km²)
ZIP code:	59910
Area code:	406
FIPS code:	3005800
GNISfeature ID:	0768742

Online Interactive Map

Big Arm online map. Source: Basemap layers from Google Map, Open Street Map (OSM), Arcgisonline, Wmflabs. Boundary Data from Database of Global Administrative Areas.

Big Arm location map. Where is Big Arm CDP?

Big Arm location on the U.S. Map. Where is Big Arm CDP. — Big Arm location on the U.S. Map.

Big Arm location on the Montana map. Where is Big Arm CDP. — Location of Big Arm in Montana.

Big Arm Road Map

Big Arm city Satellite Map

Geography

Big Arm is located in northwestern Lake County at 47°48′8″N 114°16′51″W / 47.80222°N 114.28083°W / 47.80222; -114.28083 (47.802296, -114.280952). The census-designated place contains the settlement of Big Arm along the southern shore of Flathead Lake’s Big Arm, as well as undeveloped grassland to the south, up to the base of an unnamed 5,100-foot (1,600 m) mountain. The CDP is bordered to the northeast by the community of Lindisfarne.

U.S. Route 93 passes through Big Arm, running just south of the lake shore. The highway leads southeast 12 miles (19 km) to Polson, the Lake county seat, and northwest 4 miles (6 km) to Elmo. The city of Kalispell is 39 miles (63 km) north of Big Arm.

According to the United States Census Bureau, the CDP has a total area of 5.4 square miles (14.0 km), all land.

Climate

This climatic region is typified by large seasonal temperature differences, with warm to hot (and often humid) summers and cold (sometimes severely cold) winters. According to the Köppen Climate Classification system, Big Arm has a humid continental climate, abbreviated “Dfb” on climate maps.