Walnut Grove is a city located in Minnesota. With a 2020 population of 821, it is the 384th largest city in Minnesota and the 11169th largest city in the United States. Walnut Grove is currently growing at a rate of 0.61% annually but its population has decreased by -5.74% 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 753 people per square mile.
The average household income in Walnut Grove is $49,185 with a poverty rate of 32.16%. The median rental costs in recent years comes to $485 per month, and the median house value is $54,300. The median age in Walnut Grove is 34.7 years, 33 years for males, and 45.4 years for females. For every 100 females there are 114.2 males.