1841History
On February 19, 1841, the name of the town was changed to Greenfield, taking its name from the name of the Post Office in the Town of Kinnickinnic.
1957Government
Greenfield was the final municipality in Milwaukee County to incorporate, and was the final municipality to leave the Town form of government in 1957.
2000History
=== 2000 census ===
As of the census of 2000, there were 35,476 people, 15,697 households, and 9,167 families living in the city.
2010History
=== Climate ===
== Demographics ==
=== 2010 census ===
As of the census of 2010, there were 36,720 people, 16,860 households, and 9,285 families living in the city.
2022History
Since 2022, the Powerline Trail runs through the city.