Walnut Grove
- Altona, Illinois
- Cyrus McCormick Farm
- List of unincorporated communities in Iowa
- National Register of Historic Places listings in Sacramento County, California
- Pennsylvania Route 849
- Walnut Grove (Bristol, Virginia)
- Walnut Grove (Cheneyville, Louisiana)
- Walnut Grove (Clarksville, Maryland)
- Walnut Grove (Gallatin, Tennessee)
- Walnut Grove (Mer Rouge, Louisiana)
- Walnut Grove (Mount Pleasant, Tennessee)
- Walnut Grove (Spotsylvania County, Virginia)
- Walnut Grove (Tar Heel, North Carolina)
- Walnut Grove (Union, West Virginia)
- Walnut Grove (Waterford, Connecticut)
- Walnut Grove Farm (disambiguation)
- Walnut Grove Japanese-American Historic District
- Walnut Grove Plantation
- Walnut Grove School (disambiguation)
- Walnut Grove School District (disambiguation)
- Walnut Grove Township (disambiguation)
- Walnut Grove, Alabama
- Walnut Grove, Arizona
- Walnut Grove, Arkansas (disambiguation)
- Walnut Grove, California
- Walnut Grove, Collin County, Texas
- Walnut Grove, Georgia
- Walnut Grove, Hamilton County, Indiana
- Walnut Grove, Hardin County, Tennessee
- Walnut Grove, Kansas
- Walnut Grove, Langley
- Walnut Grove, McDonough County, Illinois
- Walnut Grove, Minnesota
- Walnut Grove, Mississippi
- Walnut Grove, Missouri
- Walnut Grove, Ohio
- Walnut Grove, Putnam County, Illinois
- Walnut Grove, Smith County, Texas
- Walnut Grove, South Carolina
- Walnut Grove, Sumner County, Tennessee
- Walnut Grove, Warren County, Indiana
- Walnut Grove, Washington