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Greenfield, Wisconsin
Official logo of Greenfield, Wisconsin
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Location of Greenfield in Milwaukee County, Wisconsin.
Location of Greenfield in Milwaukee County, Wisconsin.
Country  United States
State  Wisconsin
County Milwaukee
 • Total 11.54 sq mi (29.88 km2)
 • Land 11.53 sq mi (29.87 km2)
 • Water 0.01 sq mi (0.01 km2)
794 ft (242 m)
 • Total 36,720
 • Estimate 
 • Density 3,227.63/sq mi (1,246.24/km2)
Time zone UTC−6 (Central (CST))
 • Summer (DST) UTC−5 (CDT)
Zip Code(s)
53129, 53219, 53220, 53221, 53227, 53228
Area code(s) 414
FIPS code 55-31175
GNIS feature ID 1565841
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Greenfield is a city in Milwaukee County, Wisconsin, United States. A suburb of Milwaukee, Greenfield is one of many bedroom communities in the Milwaukee metropolitan area. The population was 36,720 at the 2010 census.


On March 8, 1839, the Town of Kinnikennick was created by the territorial legislature, encompassing the western part of the Town of Lake); and on December 20, 1839, the south portion of the Town of Kinnikennick was split off to form the town of Franklin. As of the 1840 census, the population of the Town of Kinnikennick or Kinnikinnick was 404.

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. Greenfield was the final municipality in Milwaukee County to incorporate, and was the final municipality to leave the Town form of government in 1957. This was done to prevent total annexation by the City of Milwaukee. Before 1957, Milwaukee slowly nibbled away at Greenfield's land.


Greenfield is located at 42°57′47″N 87°59′45″W / 42.96306°N 87.99583°W / 42.96306; -87.99583 (42.963034, -87.995943). The Root River flows through the western part of the city.

According to the United States Census Bureau, the city has a total area of 11.52 square miles (29.84 km2), of which, 11.51 square miles (29.81 km2) is land and 0.01 square miles (0.03 km2) is water.


Historical population
Census Pop.
1960 17,636
1970 24,424 38.5%
1980 31,353 28.4%
1990 33,403 6.5%
2000 35,476 6.2%
2010 36,720 3.5%
2019 (est.) 37,221 1.4%
U.S. Decennial Census

2010 census

As of the census of 2010, there were 36,720 people, 16,860 households, and 9,285 families living in the city. The population density was 3,190.3 inhabitants per square mile (1,231.8/km2). There were 17,790 housing units at an average density of 1,545.6 per square mile (596.8/km2). The racial makeup of the city was 88.6% White, 2.3% African American, 0.7% Native American, 3.9% Asian, 2.2% from other races, and 2.3% from two or more races. Hispanic or Latino of any race were 8.4% of the population.

There were 16,860 households, of which 22.4% had children under the age of 18 living with them, 41.9% were married couples living together, 9.2% had a female householder with no husband present, 4.0% had a male householder with no wife present, and 44.9% were non-families. 37.5% of all households were made up of individuals, and 16.5% had someone living alone who was 65 years of age or older. The average household size was 2.13 and the average family size was 2.83.

The median age in the city was 44.4 years. 17.6% of residents were under the age of 18; 8% were between the ages of 18 and 24; 25.2% were from 25 to 44; 28.7% were from 45 to 64; and 20.5% were 65 years of age or older. The gender makeup of the city was 47.6% male and 52.4% female.

Notable people

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