Keeler Township is a civil township in Van Buren County, Michigan, USA. At the 2000 census, the population was 2,601. Keeler Township is largely agricultural, though it has a large influx of summer visitors who own cottages or stay at summer resorts in the Sister Lakes area in the township's southwest corner. The Sister Lakes area, though unincorporated, has the largest collection of retail establishments in the township. (The area extends into adjacent Silver Creek Township in Cass County.) Township offices are in Keeler, which also has some stores.