Willmar is a city located in Minnesota. With a 2020 population of 19,721, it is the 59th largest city in Minnesota and the 1881st largest city in the United States. Willmar is currently growing at a rate of 0.12% annually and its population has increased by 0.57% since the most recent census, which recorded a population of 19,610 in 2010. Spanning over 15 miles, Willmar has a population density of 1,413 people per square mile.
The average household income in Willmar is $59,571 with a poverty rate of 15.45%. The median rental costs in recent years comes to $743 per month, and the median house value is $134,900. The median age in Willmar is 34 years, 31.5 years for males, and 36.8 years for females. For every 100 females there are 95.6 males.