Clay County Iowa - Government Site
Population: 16,801
Area: 569 square miles
County Seat: Spencer
Area Code(s) in use: 712
Time Zone: CST
Adjacent counties:
Buena Vista Cherokee Dickinson Emmet O'Brien Osceola Palo Alto Pocahontas
Airport
Royal Airport, Spencer Municipal Airport, Spencer Municipal Hospital Heliport
Bridge
Little Sioux River Bridge
Building
Clay County Courthouse, Clay County Jail, Clay County Law Library, Clay County Sheriffs Office, Dickens Public Library, Douglas Townhall, Everly City Hall, Everly Public Library, Fostoria City Hall, Gillett Grove City Hall, Kirchner French Memorial Library, Kirchner Park House and Museum, Parker Historical Museum, Peterson City Hall, Peterson Fire Department, Royal City Hall, Royal Public Library, Spencer Fire Department, Spencer Police Department, Spencer Public Library
Canal
Ditch Number 60
Cemetery
Bethlehem Lutheran Cemetery, Burr Oak Cemetery, Center Cemetery, Dickens Cemetery, Douglas Township Cemetery, Evergreen Cemetery, Fairview Cemetery, Fanny Fern Cemetery, First Reformed Church Cemetery, Garfield Township Cemetery, Liberty Cemetery, Lincoln Cemetery, Logan Township Cemetery, Lone Tree Cemetery, Northlawn Memorial Cemetery, Oakland Cemetery, Osborn Cemetery, Prairie Creek Cemetery, Riverside Cemetery, Rosehill Cemetery, TriMello Cemetery, Willow Creek Cemetery, Zion Cemetery
Church
Assembly of God Church, Bethany Lutheran Church, Bethlehem Lutheran Church, Christ the King Lutheran Church, Church of Christ, Church of the Nazarene, First Baptist Church, First Baptist Church, First Christian Church, First Congregational Church, First English Lutheran Church, First Reformed Church, Gillett Grove United Methodist Church, Grace United Methodist Church, Harvest Evangelical Free Church, Hope Lutheran Church, Hope Reformed Church, Jehovahs Witnesses Kingdom Hall, Kingdom Hall, Living Word Church, Maple Grove Church, Ninth Street Baptist Church, Rossie United Church of Christ, Sacred Heart Catholic Church, Saint Louis Catholic Church, Saint Marys Catholic Church, Seventh Day Adventist Church, The Church of Jesus Christ of Latter Day Saints, Trinity Lutheran Church, Trinity Lutheran Church, United Methodist Church, United Methodist Church, United Methodist Church, United Pentecostal Church, Wells of Living Grace Church
Civil
City of Spencer, Clay County, Township of Clay, Township of Douglas, Township of Freeman, Township of Garfield, Township of Gillett Grove, Township of Herdland, Township of Lake, Township of Lincoln, Township of Logan, Township of Lone Tree, Township of Meadow, Township of Peterson, Township of Riverton, Township of Sioux, Township of Summit, Township of Waterford
Gut
Barringer Slough
Hospital
Abben Cancer Center, Family Dental Clinic, Foot and Ankle Clinic, Fox and Boyd Dental Center, Gaul Dermatology Center, Iowa Eye Institute, Mercy Family Care Spencer Center - North, Mercy Family Care Spencer Center - South, Northwest Iowa Bone, Joint and Sports Surgeons Center, Northwest Iowa Urologists Center, Oral and Maxillofacial Surgery Center, Saint Luke Lutheran Home, Spencer Chiropractic Clinic, Spencer Dental Arts Center, Spencer Family Dental Center, Spencer Municipal Hospital
Lake
Dan Green Slough, Elk Lake, Lost Island Lake, Mud Lake, Mud Lake, Petes Pond, Round Lake, Trumbull Lake
Locale
Annieville (historical), Bertran Camp, Bridgewater, Clay County Fairground, Cornell (historical), Cromwell Centre, Dickens, Everly, Farmers Co-op Elevator, Farmers Co-op Elevator Company Elevator, First Co-op Association Elevator, Fostoria (historical), Fostoria Cooperative Elevator, Gateway North Shopping Center, Gillett Grove (historical), Greenville (historical), Ingleville, Langdon (historical), Oneota Little Sioux Access, Peterson (historical), Prospect, Riverside - Little Sioux Access, Rossie (historical), Rossie Feed and Grain Company Elevator, Royal (historical), Southpark Mall, Southpark Mall, Spencer, Spencer Campground, Spencer Country Club, Spencer Municipal Golf Course, Summit (historical), TriMello, Webb (historical), West Bend Elevator Company Elevator
Park
Barringer Slough State Game Mgt Area, Bertram Reservation, Bob Howe - Thunder Bridge Wildlife Refuge, Bruegmann Park, Burr Area, C Earl Page Park, Cardinal Field, Dan Green Slough Wildlife Management Area, De Wolf Park, Deweys Pasture State Game Management Area, Dickens Pit, Dry Mud Lake Wildlife Management Area, Du Marsh Area, East Leach Park, Elk Lake State Game Mgt Area, Everly City Park, Fairview Park, Fen Valley Area, First Post Office, Church, School Historical Marker, Gilbert James Wildlife Area, Glen Pederson Park, Grandview Park, Hawk Valley Wildlife Management Area, High Bridge Wildlife Area, Kindlespire County Park, Little Sioux Wildlife Management Area, Miracle on Fourth Street Playground, North School Park, Ocheyedan River State Game Refuge, Oneota Park, Pickerel Lake State Wildlife Management Area, Reiter Wildlife Area, Round Lake State Game Management Area, Scharnberg County Park, Schmerse Wildlife Area, Smiths Slough State Game Management Area, Stolley Gravel Pit Park, Stouffer Memorial Wildlife Preserve, Sunset Park, Trumbull Lake State Game Management Area, Tuttle Marsh Area, Wanata State Park, Wapiti Marsh State Game Management Area, Waterway Park, West Leach Park, Westview Park, Yellowthroat Wildlife Area
Populated Place
Birchwood Estates, Cornell, Country Villa Mobile Home Park, Dickens, Everly, Fostoria, Gillett Grove, Greenville, Langdon, Maclay (historical), Peterson, Rossie, Royal, Spencer, Webb
Post Office
Annieville Post Office (historical), Bridgewater Post Office (historical), Cornell Post Office (historical), Cromwell Center Post Office (historical), Dickens Post Office, Douglas Centre Post Office (historical), Everly Post Office, Fostoria Post Office, Freeman Post Office (historical), Gillett Grove Post Office, Greenville Post Office (historical), Herdland Post Office (historical), Ingleville Post Office (historical), Langdon Post Office (historical), Peterson Post Office, Platt Post Office (historical), Prospect Post Office (historical), Rossie Post Office (historical), Royal Post Office, Spencer Post Office, Summit Post Office (historical), Trimello Post Office (historical), Webb Post Office, Willow Creek Post Office (historical), Yankee Post Office (historical)
School
Clay Central - Everly High School, Clay Central Community School, Fairview Park Elementary School, Jefferson Elementary School, Johnson Elementary School, Lincoln Elementary School, North School, Reynolds Elementary School, Rock Forest School (historical), Sacred Heart School, South Clay Elementary School, Spencer High School, Spencer Middle School, Sunny Brooks School (historical)
Stream
Big Muddy Creek, Elk Creek, Lexington Creek, Little Meadow Creek, Little Muddy Creek, Lost Island Outlet, Montgomery Creek, Murray Creek, Ocheyedan River, Ocheyedan River, Ocheyedan River, Pickerel Run, Prairie Creek, Sewer Creek, Spring Creek, Stony Creek, Willow Creek
Swamp
Smiths Slough
Tower
KICD-AM (Spencer), KICD-FM (Spencer), KICD-FM (Spencer), KJJG-FM (Spencer), KRGS-FM (Spencer)
Trail
Spencer Recreation Trail
| Race | Population |
| White |  16,510 |
| Asian | 144 |
| Mixed | 83 |
| Black | 32 |
| American Indian | 28 |
| Hawaiian & Pacific Islander | 4 |
| Additional population tables : | |
| State population table | |
| Iowa population by county | |