Walnut Grove is a city located in Redwood County Minnesota. With a 2020 population of 796, it is the 388th largest city in Minnesota and the 11300th largest city in the United States . Walnut Grove is currently declining at a rate of -0.62% annually and its population has decreased by -8.61% since the most recent census, which recorded a population of 871 in 2010. Walnut Grove reached it's highest population of 872 in 2010. Spanning over 1 miles, Walnut Grove has a population density of 730 people per square mile.
The average household income in Walnut Grove is $54,010 with a poverty rate of 24.31%. The median rental costs in recent years comes to $498 per month, and the median house value is $51,100. The median age in Walnut Grove is 34.4 years, 32.2 years for males, and 48 years for females.