 st. charles township is a township in winona county, minnesota, united states. the population was 629 at the 2010 census. ==geography== according to the united states census bureau, the township has a total area of 32.3&nbsp;square miles (83.7&nbsp;kmÂ²), all of it land. ==demographics== at the 2000 census, there were 610 people, 191 households and 158 families residing in the township. the population density was 18.9 per square mile (7.3/km
Townships_in_Minnesota Townships_in_Winona_County,_Minnesota