Bohners Lake is located at (42.624228, -88.285653) [REF].
According to the United States Census Bureau, the CDP has a total area of 2.3 square miles (6.0 km²), of which, 2.0 square miles (5.3 km²) of it is land and 0.3 square miles (0.7 km²) of it (12.12%) is water.