 preston township is a township in fillmore county, minnesota, united states. the population was 374 at the 2000 census. ==geography== according to the united states census bureau, the township has a total area of 34.5&nbsp;square miles (89.4&nbsp;kmÂ²), of which 34.5&nbsp;square&nbsp;miles (89.4&nbsp;kmÂ²) of it is land and 0.03% is water. ==demographics== as of the census of 2000, there were 374 people, 112 households, and 91 families residing in the township. the population density was 10.8 people per square mile (4.2/kmÂ²). there were 128 housing units at an average density of 3.7/sq&nbsp;mi (1.4/kmÂ²). the racial makeup of the township was 98.93% [[white (u.s. census)|white
Townships_in_Fillmore_County,_Minnesota Townships_in_Minnesota