 leighton township is a civil township of allegan county in the u.s. state of michigan. the population was 4,934 at the 2010 census, up from 3,652 at the 2000 census. ==communities== corning is a tiny unincorporated community at  near the center of the township and with the township hall nearby. there was a post office operating there from 1882 to 1902.{{cite book | last = romig | first = walter | year = 1986 | title = michigan place names | origyear= 1973 | pu
Townships_in_Allegan_County,_Michigan Townships_in_Michigan