Center Grove Township is one of twelve townships in Dickinson County, Iowa, USA. As of the 2000 census, its population was 7,478. History Center Grove Township was formed in 1866. Geography According to the United States Census Bureau, Center Grove Township covers an area of 36.15 square miles (93.63 square kilometers); of this, 31.38 square miles (81.28 square kilometers, 86.81 percent) is land and 4.77 square miles (12.35 square kilometers, 13.19 percent) is water. Cities, towns, villages Arnolds Park Milford (partial) Okoboji (southeast three-quarters) Spirit Lake (vast majority) West Okoboji (partial) Adjacent townships Spirit Lake Township (north) Superior Township (northeast) Richland Township (east) Lloyd Township (southeast) Milford Township (south) Okoboji Township (southwest) Lakeville Township (west) Diamond Lake Township (northwest) Cemeteries The township contains these three cemeteries: Lake View, Lakeland Memory Gardens and Rose Hill. Major highways U.S. Route 71 Iowa Highway 9 Airports and landing strips Airport Okoboji Dickinson County Memorial Hospital Heliport Lake Okoboji Seaplane Base Spirit Lake Municipal Airport Lakes Center Lake Lower Gar Lake Minnewashta Lake Prairie Lake Upper Gar Lake Landmarks Pillsbury Point State Park Summer Circle Park School districts Okoboji Community School District Spirit Lake Community School District Political districts Iowa's 5th congressional district State House District 06 State Senate District 03 References United States Census Bureau 2007 TIGER/Line Shapefiles United States Board on Geographic Names (GNIS) United States National Atlas External links US-Counties.com City-Data.com Townships in Dickinson County, Iowa Townships in Iowa 1866 establishments in Iowa