Delaware Township is a township in Delaware County, Iowa, USA. As of the 2000 census, its population was 6,294.GeographyDelaware Township covers an area of 36.64 square miles (94.89 square kilometers); of this, 0.19 square miles (0.5 square kilometers) or 0.53 percent is water. The streams of Coffins Creek, Honey Creek, Lindsey Creek and Rieger Creek run through this township.Cities and towns Manchester (vast majority)Unincorporated towns Dutchtown Orchard Lane Mobile Home Court(This list is based on USGS data and may include former settlements.)Adjacent townships Honey Creek Township (north) Elk Township (northeast) Oneida Township (east) Milo Township (south) Prairie Township (southwest) Coffins Grove Township (west) Richland Township (northwest)