Illinois Route 134 runs along the southern edge of the CDP, leading west 2 miles (3 km) to U.S. Route 12 in the southern part of Fox Lake and southeast through Round Lake Beach 3.5 miles (5.6 km) to Hainesville.

Long Lake is 46 miles (74 km) northwest of downtown Chicago.

There were 1,237 housing units at an average density of 1,177.0 per square mile (454.4/km2).

18.7% of all households were made up of individuals, and 4.8% had someone living alone who was 65 years of age or older.

The Long Lake station provides Metra commuter rail service along the Milwaukee District North Line.