According to the United States Census Bureau, Corinth Township covers an area of 32.8 square miles (85 km2); of this, 32.7 square miles (85 km2) is land and 0.1 square miles (0.26 km2) is water.[1]
The township contains Indian Mound Cemetery, Oakwood Cemetery, and Our Saviors Cemetery.[1] St. Mary's Cemetery is located within the Humboldt city limits.