These are the parks thicket knows about in Saint Clair — the big ones you already know, and the pocket parks, greenways and trailheads two streets over that you probably do not.
- Alorton Park
- Alzada Christian Carr Memorial Park
- American Legion Park
- American Legion Post 784 Park
- American Legion Post 961 Park
- Belle Clair Soccer Park
- Belleville Skate Board Park
- Bellevue Park
- Benham Street Park
- Bicentennial Park
- Brooklyn Community Park
- Cahokia Park
- Cahokia Tricentennial Park
- Cahokia Youth Footbal Park
- Cambridge Park
- Centenial Park
- Centreville Park
- Ceola Davis Park
- Citizen's Park
- Collinsville Jaycee Sports Complex
- Dawn Heights Mini Park
- Dupo Community Park
- Dupo Main Street Historic Park
- East End Park
- Elm Street Park
- Ever and Anon Park
- Extended Stay Park
- Fayetteville Community Park
- Foley Park
- Frank Holten State Recreation Area
- Freeburg Recreation Park
- Frontier Park
- George Price Memorial Park
- Golden Gardens Park
- Hanft Park
- Hesse Park
- Horner Recreation Park
- Hough Park
- Illinois Avenue Park
- Jackie Joyner Park
- Jones Park
- Julius J Knobeloch Woods Nature Preserve
- Khoury League Park
- Kings Creek Park
- Laderman Park
- Liederkranz Park
- Lincoln Park
- Lions Veteran's Memorial Park
- Maple Park
- Marissa Ball Diamonds
- Marissa North Park
- Marissa South Park
- McAllister Park
- McBride/Officer Park
- Melvin Price Memorial City Park
- Millstadt Nature Park
- Millstadt Primary Center Park
- Millstadt Village Park
- Millstadt Water Tower Park
- Moody Park (Longacre Park)
- Morris Hills Park
- North End Park
- North Municipal Gateway Entrance Park
- O'Fallon City Park
- O'Fallon Family Sports Park
- Okaw Valley Park
- Old Lincoln Trail Park
- Optimist Park
- Pleasant Hill Park
- Pleasant Ridge Park
- Prairie Lakes Park
- Ridge Park
- Rock Springs Dog Park
- Rock Springs Park
- Rohr Park
- Sauget Village Park
- Scheve Park
- Schranz Memorial Park
- Scott Field Heritage Air Park
- Secret Garden
- Shiloh Community Park
- Signal Hill Athletic Park
- Smithton City Park
- South Side Park
- St Ellen Mine Park
- St. Clair Township Park
- Stemler Cave Woods Nature Preserve
- Stoneybrook Park
- Stookey Township Park
- Sugarloaf Township Park
- Summerfield Park
- Sunken Gardens Park
- Thoman Park
- Three Springs Park
- Veterans' Memorial Park
- Village of Caseyville Park
- Virginia Park
- War Memorial
- Wenneman Park
- West End Public Square
- West Main Street Triangle
- Wolf Branch St. Clair Township Park
- Zion Fellowship Park