Atchison County Missouri - Government Site
Population: 6,132
Area: 545 square miles
County Seat: Rock Port
Area Code(s) in use: 660
Time Zone: CST
Adjacent counties:
Fremont (IA) Holt Nemaha (NE) Nodaway Otoe (NE) Page (IA) Richardson (NE)
Airport
Cleveland Airport, Garst Airport, Gould Peterson Municipal Airport, Luhrs Landing Strip, Rock Port Municipal Airport, Steele Airport
Area
Evans Island, Narrows, Northwest Missouri Planning District, Northwestern Loess Hills
Building
Community Hall
Canal
High Creek Ditch, Main Ditch Number Six, Rock Creek Ditch
Cemetery
Addington Cemetery, Beck Cemetery, Bush Cemetery, Center Grove Cemetery, Corning Cemetery, Grange Hall Cemetery, Green Hill Cemetery, Home Cemetery, Hunter Cemetery, London Cemetery, Millsap Cemetery, Mount Hope Cemetery, Pleasant Ridge Cemetery, Pleasant Ridge Cemetery, Prairie Hill Cemetery, Smith Cemetery, Sonora Cemetery, Stoner Cemetery, Walden Grove Cemetery, Walkup Cemetery
Church
Center Grove Church, Cox Chapel (historical), English Grove Church, High Creek Church, Lone Chapel (historical), Rupes Grove Church, Saint Johns Church, Saint Oswold Church, Saint Peters Church, Walkup Church
Civil
Atchison County, Township of Benton, Township of Buchanan, Township of Clark, Township of Clay, Township of Colfax, Township of Dale, Township of Lincoln, Township of Nishnabotna, Township of Polk, Township of Tarkio, Township of Templeton
Dam
Broady Lake Dam, Charity Lake Dam, Graves Lake Dam, Hall Dam, Lowell Pierce Dam, McCoy Lake Dam, McCoy-Waits Lake Dam, Mononame 25 Dam, Mononame 283 Dam, Oswald Dam
Gut
Whalen Slough
Island
McKissocks Island
Lake
Greys Lake, Horseshoe Lake (historical), Nishnabotna Lake
Locale
Baileys Grove, Brickyard Hill State Wildlife Area, Dogwoods, English Grove, Fowler Mill, Fugitts Mill (historical), Guy (historical), Hog Thief Bend, Hoot Owl Bend Public Access, Hunters Bridge, Langdon Bend Public Access, Rupe's Grove, Walkups Grove, Waughs Grove
Park
Memorial Park
Populated Place
Center Grove, Center Point, Dotham, El Paso, Elk Dale, Excelsior, Fairfax, Farmers City, Graves Grove, Hunkadora, Langdon, Linden, London, Milton, Nishnabotna, Oswald, Phelps City, Rock Port, Sacramento City, Scott City, Sonora, South Blanchard (historical), Tarkio, Union City, Watson, Westboro, York, Yorktown
Post Office
Eudora Post Office, Gill Post Office, Hazel Grove Post Office, Homer Post Office, Hope Chapel Post Office, London Post Office, North Star Post Office, Oswald Post Office, Powelton Post Office, Rich Post Office
Reservoir
Center View Lake, Centerview Fishing Lake, Charity Lake, Happy Hollow Lake, Jeff Broady Lake, Nishnabotna Lake, Oswald Lake
School
Angel School, Banner School, Belleview School (historical), Bend Center School (historical), Campbell School, Center Grove School, Center View School, Central School, Chicken Bristle School, Cloverhill School, Cooper School (historical), Cottonwood Grove School, Cottonwood Grove School (historical), Cox Chapel School (historical), Daleview School, Elk Dale School, Ellison School, Emporia School (historical), Eureka School, Evening Star School, Excelsior School, Fairview School, Happy Hill School, Harmes School, Hazel Grove School, High Bank School, High Creek School (historical), Highland School (historical), Homer School, Houston School, Hudson School (historical), Irish Grove School, Langdon School (historical), Lewis School (historical), Liberty School, Lincoln School (historical), London School, Lone Cedar School, Lone Star School, Long Branch School, Loss Grove School, Lowe School, Mayflower School (historical), Miller School, Millsap School, Milton School (historical), Morning Star School, Morning Sun School, Moulton School, Mount Hope School, Mount Pleasant School, Mount Salem School, National School, New Hope School, North Polk School (historical), North Star School, Oak Grove School, Opp School, Phelps City School (historical), Pleasant Mound School, Pleasant Ridge School, Pleasant Valley School, Prairie Flower School, Red Star School, Ross School, Royal School, Rupes Grove School, Salem School, Seller School, Seminary School, Shandy School, Shiloh School (historical), South Center School, South Dale School (historical), South York School, Spring Valley School, Star School (historical), Sunny Grove School (historical), Sunny Slope School, Tarkio College, Union School, Union School (historical), Valley View School, Wade School, Walkup School, Wallbaum School, West Bend School (historical), West Point School, Westboro School (historical), Wolf School, Yale School (historical), York School
Stream
Boney Branch, Cow Branch, DeArmonds Branch, Hickory Branch, High Creek, High Creek, High Creek, Long Branch, Long Branch, McElroy Creek, McElroy Creek, McElroy Creek, Middle Tarkio Creek, Middle Tarkio Creek, Middle Tarkio Creek, Mill Creek, Old Channel Nishnabotna River, Rock Creek, Rock Creek, Rock Creek, Rose Branch, Squaw Creek, State Line Slough, Turkey Creek, Volger Branch, West Tarkio Creek, West Tarkio Creek, West Tarkio Creek, Whites Branch
Summit
Brickyard Hill
Tower
KTRX-FM (Tarkio)
Valley
Angel Hollow, Deadmans Hollow
| Race | Population |
| White |  5,921 |
| Black | 149 |
| American Indian | 22 |
| Asian | 21 |
| Mixed | 19 |
| Hawaiian & Pacific Islander | 0 |
| Additional population tables : | |
| State population table | |
| Missouri population by county | |