• Six Flags America

  Upper Marlboro, MD • Opened: 1982
  🎢 Active: 9

  ☠️ Defunct: 4
• Six Flags Darien Lake

  Darien Center, NY • Opened: 1981
  🎢 Active: 8

  ☠️ Defunct: 2
• Six Flags Discovery Kingdom

  Vallejo, CA • Opened: 1986
  🎢 Active: 10

  ☠️ Defunct: 5
• Six Flags Great Adventure

  Jackson, NJ • Opened: 1974
  🎢 Active: 14

  ☠️ Defunct: 17
• Six Flags Great America

  Gurnee, IL • Opened: 1976
  🎢 Active: 16

  ☠️ Defunct: 8
• Six Flags Great Escape

  Queensbury, NY • Opened: 1954
  🎢 Active: 6

  ☠️ Defunct: 4
• Six Flags Magic Mountain

  Valencia, CA • Opened: 1971
  🎢 Active: 21

  ☠️ Defunct: 8
• Six Flags New England

  Agawam, MA • Opened: 1870
  🎢 Active: 12

  ☠️ Defunct: 11
• Six Flags Over Georgia

  Austell, GA • Opened: 1967
  🎢 Active: 13

  ☠️ Defunct: 5
• Six Flags St. Louis

  Eureka, MO • Opened: 1971
  🎢 Active: 10

  ☠️ Defunct: 4
• SkyLand Ranch

  Sevierville, TN • Opened: 2022
  🎢 Active: 1

  ☠️ Defunct: 0
• SkyPark at Santa's Village

  Skyforest, CA • Opened: 1954
  🎢 Active: 0

  ☠️ Defunct: 1
• Sluggers & Putters

  Canal Fulton, OH • Opened: 1991
  🎢 Active: 1

  ☠️ Defunct: 0
• Smoky Mountain Alpine Coaster

  Pigeon Forge, TN • Opened: 2013
  🎢 Active: 1

  ☠️ Defunct: 0
• Snow King Mountain

  Jackson Hole, WY • Opened: 1938
  🎢 Active: 1

  ☠️ Defunct: 0
• Snowbird

  Sandy, UT • Opened: 1971
  🎢 Active: 1

  ☠️ Defunct: 0
• Sonny Acres Farm

  West Chicago, IL • Opened: 1883
  🎢 Active: 1

  ☠️ Defunct: 0
• Sonoma TrainTown Railroad

  Sonoma, CA • Opened: 1968
  🎢 Active: 1

  ☠️ Defunct: 1
• South Dakota State Fair

  Huron, SD • Opened: 1905
  🎢 Active: 0

  ☠️ Defunct: 1
• Spirit Mountain

  Duluth, MN • Opened: 2010
  🎢 Active: 1

  ☠️ Defunct: 0
• Splash City Adventures

  Pensacola, FL • Opened: 2000
  🎢 Active: 1

  ☠️ Defunct: 1
• Splash Zone Water Park

  Wildwood, NJ • Opened: 1975
  🎢 Active: 0

  ☠️ Defunct: 3
• Spring Park

  Tuscumbia, AL • Opened: 2005
  🎢 Active: 1

  ☠️ Defunct: 0
• St. Louis Union Station

  St. Louis, MO • Opened: 1894
  🎢 Active: 1

  ☠️ Defunct: 0
• Starland Sportsplex & Fun Park

  Hanover, MA • Opened: 1968
  🎢 Active: 1

  ☠️ Defunct: 0