Walnut Grove is a city in Greene County, Missouri, United States.

Claudette Riley of the Springfield News-Leader described it as "a largely agricultural community with a relatively low tax base.

It was named for the groves of wild black walnut trees growing near the original town site.

[8] According to the United States Census Bureau, the city has a total area of 0.62 square miles (1.61 km2), all land.

[5] Walnut Grove hosted an annual celebration in September called 'Possum Trot Days.'

Generally, there was a town wide garage sale with various activities interspersed throughout the day at the community park.

The town also annually celebrates bluegrass with a festival called 'Pickin' in the Park 'the second Saturday in June .

As of 2019[update] construction and screen printing companies are based in Walnut Grove.