Calhoun County Iowa - Government Site
Population: 10,437
Area: 570 square miles
County Seat: Rockwell City
Area Code(s) in use: 515 712
Time Zone: CST
Adjacent counties:
Buena Vista Carroll Greene Pocahontas Sac Webster
Airport
Rockwell City Municipal Airport, Stewart Memorial Hospital Heliport
Bridge
Lake City Bridge, Rockwell City Bridge, Welsh Bridge
Building
Calhoun County Courthouse, Calhoun County Historical Library, Calhoun County Home, Calhoun County Museum, Calhoun County Sheriff's Office, Central School Museum, Farnhamville Fire Department, Farnhamville Library, Farnhamville Police Department, Farnhamville Town Hall, J J Hands Library, Knierim Fire Department, Lake City City Hall, Lake City Community Building, Lake City Library, Lake City Police Department, Lohrville City Hall, Lohrville Fire Station, Manson Library, Manson Town Police Department, North Central Correctional Facility, Pomeroy City Hall, Pomeroy Public Library, Rockwell City Fire Department, Rockwell City Hall, Rockwell City Library, Somers City Hall, Somers City Library
Canal
Ditch Number 12, Ditch Number 28, Ditch Number 31, Drainage Ditch 10, Drainage Ditch 13, Drainage Ditch 198, Drainage Ditch 46, Drainage Ditch 6, Drainage Ditch 65, Drainage Ditch 79, Drainage Ditch Number 1, Drainage Ditch Number 37, Joint Drainage Ditch 16
Cemetery
Bishop Cemetery, Cedar Cemetery, Cottonwood Cemetery, Crown Hill Cemetery, Evergreen Cemetery, Evergreen Cemetery, Garfield Cemetery, Greenwood Cemetery, Hope Cemetery, Lake City Cemetery, Lake Creek Cemetery, Leith Cemetery, Logan Township Cemetery, Memorial Park Cemetery, Piper Cemetery, Reading Cemetery, Reformatory Cemetery, Roby Cemetery, Rose Hill Cemetery, Rosehill Cemetery, Saint Francis Cemetery, Saint James Cemetery, Saint John Cemetery, Saint Joseph Cemetery, Saint Mary's Cemetery, Saint Marys Cemetery, Saint Thomas Cemetery, Swedish Cemetery, Trinity Cemetery, Twin Lakes Cemetery, Union Cemetery
Church
Augustana Evangelical Lutheran Church, Christian Church, Church of Christ, Church of Christ, Community Fellowship Christian Church, Evangelical Free Church, First American Baptist Church, First United Church, First United Church of Christ, Grace United Methodist Church, Holy Trinity Lutheran Church, Immanuel Church, Immanuel Lutheran Church, Kingdom Hall of Jehovah's Witnesses, Lake City Union Church, Manson Mennonite Church, Pilgrim Lutheran Church, Presbyterian Church, Rockwell City United Methodist Church, Saint Francis Catholic Church, Saint John Lutheran Church, Saint Joseph Church, Saint Joseph's Catholic Church, Saint Mary's Catholic Church, Saint Mary's Catholic Church, Saint Paul American Lutheran Church, Saint Paul Evangelical Lutheran Church, Saint Pauls Church, Saint Thomas Catholic Church, Seventh Day Adventist Church, Share Group Fellowship Church, Trinity Church, Trinity Lutheran Church, United Church of Christ, United Methodist Church, United Methodist Church, Wesley United Methodist Church, Woodlawn Christian Church, Zion United Methodist Church
Civil
Calhoun County, Lake City, Township of Butler, Township of Calhoun, Township of Cedar, Township of Center, Township of Elm Grove, Township of Garfield, Township of Greenfield, Township of Jackson, Township of Lake Creek, Township of Lincoln, Township of Logan, Township of Reading, Township of Sherman, Township of Twin Lakes, Township of Union, Township of Williams
Hospital
Lake City Medical Clinic, Manson Good Samaritan Center, McFarland Clinic at Lake City, McFarland Clinic at Rockwell, Physical Therapy Rost Clinic, Pomeroy Care Center, Rhodes Clinic, Rock Vision Clinic, Shady Oaks Center, Sinek Vision Clinic, Stewart Memorial Hospital, Sunny Knoll Care Center, Trimark Physicians Group Center
Lake
Pond Creek Lake (historical), Towhead Lake
Locale
Farmers Co-op Company Elevator, Farmers Co-op Elevator, Farmers Co-operative Company Elevator, Farmers Cooperative Company Elevator, Farmers Cooperative Company Elevator, Farnhamville (historical), Highway Number Twenty Rest Area, Home Valley Mall, Iowa State Reformatory for Women, Jolley (historical), Kelly Access Area, Knierim, Knoke (historical), Lake City (historical), Lake City Country Club, Lavinia (historical), Lohrville (historical), Manson, Manson Golf and Country Club, Muddy (historical), New Cooperative Incorporated Elevator, Pomeroy, Rands (historical), Richards, Rinard (historical), Rockwell City, Sherwood, Somers, Stimsons (historical), Twin Lakes Bible Camp, Twin Lakes Golf Club, Wightman (historical), Williams Township Hall, Yetter
Park
Calhoun Wildlife Area, Camp Creek Wildlife Area, Cedar Wildlife Area, Center Wildlife Area, Davis Preservation Area, Elm Grove Wildlife Area, Featherstone Memorial County Park, Goins Memorial Park, Hickory Grove County Park, Highway Number Four Recreation Area, Johnson Prairie, Lake End County Park, Logan Wildlife Area, Lohr Wildlife Refuge, Manson Fairground Park, Mendenhall Park, Mike Macke Memorial Park, Munson Prairie, North Twin Lake Wildlife Management Area, Rainbow Bend County Park, Rockwell City Park, Schilling Sanctuary, Site of Pioneer Children's Grave Historical Marker, South Twin Lake Wildlife Management Area, Towhead Lake State Game Management Area, Townhead Lake State Game Mgt Area, Twin Lakes State Park, Twin Lakes State Park West, University Forty County Park, Veterans Memorial Park, Watertower Park
Populated Place
Easley, Farnhamville, Jolley, Knierim, Knoke, Lake City, Lavinia, Lohrville, Lytton, Manson, Piper, Pomeroy, Rands, Richard, Rinard, Rockwell City, Sherwood, Somers, Stimsons (historical), Twin Lakes Trailer Court, Wightman, Yetter
Post Office
Burns Post Office (historical), Calhoun Post Office (historical), Crandall Post Office (historical), Elmgrove Post Office (historical), Farnhamville Post Office, Jolley Post Office, Kissimmee Post Office (historical), Knierim Post Office, Knoke Post Office (historical), Lake City Post Office, Lavinia Post Office (historical), Lohrville Post Office, Manson Post Office, Muddy Post Office (historical), Pomeroy Post Office, Rands Post Office (historical), Richards Post Office (historical), Rinard Post Office (historical), Rockwell Post Office, Sherwood Post Office (historical), Somers Post Office, Twin Lakes Post Office (historical), Wightman Post Office (historical), Yetter Post Office (historical)
Reservoir
North Twin Lake, South Twin Lake
School
Lincoln Number One School (historical), Lincoln School, Manson Elementary School, Manson High School, Pomeroy-Palmer Community School, Prairie Valley Elementary West School, Prairie Valley Middle School, Rockwell City Elementary School, Rockwell City High School, Sherman School, Southern Cal High School, Southern Cal Middle School
Stream
Camp Creek, East Cedar Creek, Lake Creek, Prairie Creek, Prairie Creek, Welshs Slough, West Cedar Creek, West Fork Camp Creek
Tower
KTLB-FM (Twin Lakes)
| Race | Population |
| White |  10,235 |
| Black | 109 |
| Mixed | 41 |
| Asian | 26 |
| American Indian | 25 |
| Hawaiian & Pacific Islander | 1 |
| Additional population tables : | |
| State population table | |
| Iowa population by county | |