Greenfield is a city located in Wisconsin. With a 2020 population of 37,022, it is the 21st largest city in Wisconsin and the 1065th largest city in the United States. Greenfield is currently declining at a rate of -0.45% annually but its population has increased by 0.82% since the most recent census, which recorded a population of 36,720 in 2010. Greenfield reached it's highest population of 37,358 in 2018. Spanning over 12 miles, Greenfield has a population density of 3,210 people per square mile.
The average household income in Greenfield is $70,449 with a poverty rate of 9.09%. The median rental costs in recent years comes to $944 per month, and the median house value is $172,300. The median age in Greenfield is 42.6 years, 39 years for males, and 46.6 years for females. For every 100 females there are 94.0 males.