Underwood is a city located in Pottawattamie County Iowa. With a 2020 population of 982, it is the 279th largest city in Iowa and the 10369th largest city in the United States . Underwood is currently growing at a rate of 1.34% annually and its population has increased by 7.09% since the most recent census, which recorded a population of 917 in 2010. Underwood reached it's highest population of in . Spanning over 1 miles, Underwood has a population density of 895 people per square mile.
The average household income in Underwood is $84,944 with a poverty rate of 5.29%. The median rental costs in recent years comes to $700 per month, and the median house value is $160,800. The median age in Underwood is 36.9 years, 35.3 years for males, and 41.1 years for females.