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King County Washington home

King County Parks - Popular parks

King County Parks’ mission is to steward, enhance and acquire parks to inspire healthy communities, and with 32,000 acres of open space, 185 miles of regional trails, and 275 miles of backcountry trails King County Parks offers close-to-home recreational experiences for everyone.

In our 220 parks, you’ll find ballfields, playgrounds, and pools, as well as lush forests, quiet meadows, and sweeping vistas of mountains, rivers, and Puget Sound. What are you looking to do? Use our Backyard Funfinder to explore all the fun activities and locations or click on one of our most popular parks below to begin the adventure in King County Parks – Your Big Backyard.

A frost-covered playground at Big Finn Hill in morning sun

Big Finn Hill

A group of kids play in the pool at Cottage Lake Park

Cottage Lake

A hiker walks along a trail bordered by towering cedar and fir trees on Cougar Mountain

Cougar Mountain

A view of the Dockton Park Marina's boat slips

Dockton Marine

A wooden ramp in the foreground turns off into the lush green forest

Duthie Hill

Soccer players in red uniforms out on the fields in the setting sun

Marymoor

A dirt path runs along the shore at Maury Island Marine Park

Maury Island Marine

Kids play on a turf soccer field next to Mel Olson Stadium

Steve Cox Memorial

A family picnics near the red barn at Tolt Macdonald Park

Tolt MacDonald

Related Topics

Backyard Funfinder

Use this interactive map to find parks and trails in King County

Leafline trails

Check out some of our more popular regional trails

Capital Improvements

Information about King County Parks' capital improvement projects and programs.

Parks Events

See upcoming events at King County parks and trails.