| Walnut Woods State Park | |
| Map: | USA Iowa#USA |
| Relief: | 1 |
| Location: | Polk County, Iowa, United States |
| Coordinates: | 41.5419°N -93.7428°W |
| Area Acre: | 260 |
| Elevation: | 820feet[1] |
| Governing Body: | Iowa Department of Natural Resources |
| Website: | Walnut Woods State Park |
Walnut Woods State Park is a state park in Polk County, Iowa, United States, located in suburban West Des Moines. Within the Des Moines metropolitan area, the park preserves a bottomland hardwood forest featuring the largest natural stand of black walnut trees in North America.[2] The Raccoon River meanders through the 260acres park, providing fishing and canoeing opportunities. The park also provides picnic areas, a limestone lodge built in the 1930s, and a small campground with 22 sites. More than 90 bird species have been seen in the park.[3]