 seneca township is a civil township of lenawee county in the u.s. state of michigan. the population was 1,303 at the 2000 census. ==geography== according to the united states census bureau, the township has a total area of , of which  is land and  (0.15%) is water. ==demographics== as of the census of 2000, there were 1,303 people, 469 households, and 363 families residing in the township. the population density was 32.6 per square mile (12.6/kmÂ²). there were 489 housing units at an average density of 12.2 per square mile (4.7/kmÂ²). the racial makeup of the township was 95.78% white, 0.23% african american, 1.00% native american, 0.08% asian,
Townships_in_Lenawee_County,_Michigan Townships_in_Michigan