Underwood is a city located in Otter Tail County Minnesota. With a 2020 population of 363, it is the 552nd largest city in Minnesota and the 14621st largest city in the United States . Underwood is currently declining at a rate of -0.27% annually but its population has increased by 6.45% since the most recent census, which recorded a population of 341 in 2010. Underwood reached it's highest population of 366 in 2018. Spanning over 1 miles, Underwood has a population density of 630 people per square mile.
The average household income in Underwood is $52,909 with a poverty rate of 16.32%. The median rental costs in recent years comes to $725 per month, and the median house value is $95,400. The median age in Underwood is 44.2 years, 42.7 years for males, and 46.5 years for females.