Marshfield is a city located in Wisconsin. With a 2020 population of 18,077, it is the 45th largest city in Wisconsin and the 2013th largest city in the United States. Marshfield is currently declining at a rate of -0.64% annually and its population has decreased by -5.45% since the most recent census, which recorded a population of 19,118 in 2010. Marshfield reached it's highest population of 19,291 in 1990. Spanning over 14 miles, Marshfield has a population density of 1,325 people per square mile.
The average household income in Marshfield is $71,695 with a poverty rate of 10.69%. The median rental costs in recent years comes to $668 per month, and the median house value is $136,700. The median age in Marshfield is 41 years, 37.5 years for males, and 44.7 years for females. For every 100 females there are 92.4 males.