Castlewood State Park: Hours, Free Entry and Map

Castlewood State Park is a Missouri state park in Ballwin, Saint Louis County, in our St. Louis Area region. Entry is free. Hours are listed below.Checked October 30, 2026 against the park system’s own pages. Tours, camping and cave visits can cost extra; we have not confirmed prices.

FreeEntry
State ParkType
St. Louis AreaRegion
See Hours BelowGrounds

Hours
Directions
Dogs
Nearby
Coming Up

Visit Facts at a Glance

Address	1401 Kiefer Creek Road, Ballwin, MO 63021-7338
Phone	Office Phone: 636-227-4433
County	Saint Louis (from OpenStreetMap, approximate)
Official page	Missouri State Parks: Castlewood State Park
General information	Park general information

What the Official Page Mentions

The park system’s own pages for Castlewood State Park mention: cabins, yurts or lodge rooms, hiking, bicycling, swimming, fishing, boating or paddling, picnicking, bird watching. That is a list of topics, not a promise that each is open today; check the park’s status before you go.

Hours

As the park system prints them, checked October 30, 2026: 7 a.m. to one-half hour after sunset, year-round; Park gates open and close at these times.; Park Office – Castlewood; March; 9 a.m. to noon, Saturday and Sunday; April through October (On-Season); 9 a.m. to noon, Wednesday through Sunday; November; 9 a.m. to noon, Saturday and Sunday; December through February (Off-Season); The office telephone is monitored Monday through Friday. The office door is unlocked when staff is available.

For weather closures, maintenance and trail closures, see the state’s Park and Site Status Map.

Directions and Location

1401 Kiefer Creek Road, Ballwin, MO 63021-7338. Open in Google Maps

Approximate pin from an OpenStreetMap place with this name, not a surveyed entrance. © OpenStreetMap contributors. Use the address above to navigate.

Dogs and Pets

The statewide rule, from the park system: pets stay on a leash no longer than 10 feet and under control; they are not allowed inside any state park or historic site building, or in public swimming areas and beaches. Read October 30, 2026. This park may add its own limits; we did not find a separate dog rule for Castlewood State Park.

Nearby in St. Louis Area

More: all Missouri state parks and historic sites, St. Louis Area guide, St. Louis Area events.

Coming Up Near Castlewood State Park

Boop! The MusicalOn now through Nov 8 · St. Louis · about 17 mi
SOMBR: You Are The Reason TourOct 30 · St. Louis · about 17 mi
The String Cheese Incident: Just Keep Spinning TourNov 6 · Chesterfield · about 8 mi
Mizzou vs. SLU Men's Basketball (Enterprise Center)Nov 6 · St. Louis · about 17 mi
Three Days GraceNov 7 · St. Louis · about 17 mi

Events within 40 miles, straight-line from the place to the centre of the event town, not driving miles; events in towns we have no checked centre for are left out. Dates come from our checked events list and may change; confirm with the organizer.

What We Could Not Verify

Not confirmed

Prices for tours, cave visits, camping and lodging: not read for this unit.
Whether every feature listed above is open this week: use the status map.
The exact entrance: the map pin is approximate, from OpenStreetMap.
Photos: none shown; we place a photo only when it is a true match for the page.
Entry is free per the state tourism guide read October 30, 2026; the park system’s page for this unit does not repeat it.

Questions People Ask

Is Castlewood State Park free to enter?

The state tourism guide says Missouri state parks and historic sites are free to enter. Tours, camping and cave visits can have their own prices, which we have not confirmed here.

What are the hours at Castlewood State Park?

See hours below. See the Hours section for the full schedule as the park system prints it.

Are dogs allowed at Castlewood State Park?

Dogs on a leash of 10 feet or less are welcome outdoors under the statewide rule, but not inside buildings or in swimming areas. Check the park for added limits.

Where is Castlewood State Park?

1401 Kiefer Creek Road, Ballwin, MO 63021-7338.

Sources

Missouri State Parks: Castlewood State Park, read October 30, 2026
Missouri State Parks: hours for Castlewood State Park, read October 30, 2026
Enjoying Missouri State Parks with Your Pet (Missouri State Parks), read October 30, 2026
Missouri State Parks: A Visitor’s Guide (Missouri Division of Tourism), read October 30, 2026
Missouri State Parks: Park and Site Status Map, read October 30, 2026

Checked October 30, 2026 by It’s Missouri. Cite this page: Castlewood State Park, itsmissouri.com (https://itsmissouri.com/places/castlewood-state-park/), checked 2026-10-30. Free to quote with a link.