Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Wadena Township is a township in Wadena County, Minnesota, United States.The population was 1,010 at the 2000 census.According to the United States Census Bureau, the township has a total area of 31.5 square miles (81.5 km²), of which, 31.4 square miles (81.4 km²) of it is land and 0.04 square miles (0.1 km²) of it (0.10%) is water.As of the census of 2000, there were... Mehr