Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Odessa Township is a township in Big Stone County, Minnesota, United States. The population was 147 as of the 2000 census. According to the United States Census Bureau, the township has a total area of 36.3 square miles (94.1 km²), of which 35.5 square miles (92.1 km²) is land and 0.8 square miles (2.0 km²) (2.12%) is water. The city of Odessa is entirely within this township geographically but is a separate entity.