Arlee (Salish: nɫq̓alqʷ, nɫq̓a ) is an unincorporated community and census-designated place (CDP) in Lake County, Montana, United States. The population was 636 at the 2010 census. It is named after Alee, a Salish chief. The chief's name has no "r", as the Salish alphabet has no letter "r".
Arlee is located in southern Lake County at 47°10′9″N 114°5′24″W (47.169154, -114.089899), in the Jocko Valley. U.S. Route 93 and Montana Highway 200 pass through the community together, leading northwest 10 miles (16 km) to Ravalli and south 17 miles (27 km) to Interstate 90 at Wye. Polson, the Lake county seat, is 43 miles (69 km) north of Arlee via US 93.
According to the United States Census Bureau, the Arlee CDP has a total area of 6.5 square miles (16.8 km2), of which 93,452.27 square feet (8,682 m2), or 0.05%, are water. The Jocko River passes through the northeast side of the community, flowing northwest past Ravalli to the Flathead River at Dixon. Via the Flathead River, it is part of the Clark Fork and Columbia River watershed.
As of the census of 2000, there were 602 people, 235 households, and 161 families residing in the CDP. The population density was 92.8 people per square mile (35.9/km2).