It’s Missouri
Washington State Park is a Missouri state park in De Soto, Washington County, in our Southern Ozarks region. Entry is free. Grounds are open sunrise to sunset.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
  • Southern OzarksRegion
  • Sunrise to SunsetGrounds

Visit Facts at a Glance

Address13041 State Highway 104, De Soto, MO 63020-7000
PhoneOffice Phone: 636-586-5768 Lodging, Store, Floating, Pool: 636-586-2995
CountyWashington (from OpenStreetMap, approximate)
Official pageMissouri State Parks: Washington State Park
General informationPark general information

What the Official Page Mentions

The park system’s own pages for Washington State Park mention: camping, cabins, yurts or lodge rooms, hiking, swimming, fishing, boating or paddling. 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 sunset, year-round.; November through March; The roads to Shelter #1/CCC Ridge, the swimming pool, cabins and the Big River Day-Use Area (including Shelter #2/Big River Day-Use Area Shelter) are closed to vehicles. They are open to foot traffic.; Interpretive Center; Sunrise to sunset, year-round; Park Office – Washington; April through October; 10 a.m. to 4 p.m., Tuesday through Friday; Closed Sunday, Monday and Saturday; Please note there may be times when the office is closed while staff are working in the park.; November through March; 10 a.m. to 4 p.m., Wednesday through Friday; Closed Saturday through Tuesday; Please note there may be times when the office is closed while staff are working in the park.

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

Directions and Location

13041 State Highway 104, De Soto, MO 63020-7000. 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 Washington State Park.

Nearby in Southern Ozarks

More: all Missouri state parks and historic sites, Southern Ozarks guide, Southern Ozarks events.

Coming Up Near Washington State Park

Nothing on our checked calendar yet. We list only events whose dates an organizer has published. See all Missouri events.

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 Washington 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 Washington State Park?

Sunrise to sunset. See the Hours section for the full schedule as the park system prints it.

Are dogs allowed at Washington 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 Washington State Park?

13041 State Highway 104, De Soto, MO 63020-7000.

Sources

  1. Missouri State Parks: Washington State Park, read October 30, 2026
  2. Missouri State Parks: hours for Washington State Park, read October 30, 2026
  3. Enjoying Missouri State Parks with Your Pet (Missouri State Parks), read October 30, 2026
  4. Missouri State Parks: A Visitor’s Guide (Missouri Division of Tourism), read October 30, 2026
  5. Missouri State Parks: Park and Site Status Map, read October 30, 2026

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