Eveline Township occupies most of the south side of Lake Charlevoix, between the cities of Charlevoix and Boyne City. The South Arm of Lake Charlevoix branches south from the main body of the lake, cutting through the middle of Eveline Township and extending into South Arm Township. There is no bridge across the South Arm, and a ferry at Ironton is the only connection within the township between the two sides of the arm.