City · Wisconsin
Greenfield, Wisconsin
Greenfield, city, in Milwaukee County, Wisconsin. Greenfield had 37,159 residents on July 1, 2025 by the Census Bureau's estimate, down 1.7% since 2020; the 2020 Census counted 37,803 and the ACS 2020-2024 5-year estimates put it at 37,345 (±88). GEOID 5531175.
Residents, July 2025 estimate
37,159
Census Bureau estimate (no margin published)
2020 Census count: 37,803 · ACS 2020-2024: 37,345 ±88
Median household income
$70,459
±$4,265 (90% margin)
Wisconsin: $77,485
Median home value
$261,100
±$8,179 (90% margin)
Wisconsin: $266,500
Median gross rent
$1,170
±$25 (90% margin)
Wisconsin: $1,087
Where is Greenfield and what county is it in?
Greenfield is a city in Milwaukee County, Wisconsin. It covers 11.5 square miles of land, 3,278 residents per square mile in 2020.
Greenfield is in the Milwaukee-Waukesha, WI metropolitan statistical area, which takes in 4 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Greenfield, and is it growing?
The Census Bureau estimates that 37,159 people lived in Greenfield on July 1, 2025, down 1.7% since 2020, while Wisconsin grew 1.3%. The 2020 Census counted 37,803 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 37,345 (±88).
| Measure | Greenfield | Milwaukee County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 37,345 ±88 | 926,331 | +246 |
| Households | 17,393 ±696 | 392,399 | no clear change |
| Average household size | 2.12 ±0.08 | 2.31 | no clear change |
| Housing units | 17,932 ±666 | 426,715 | no clear change |
Greenfield's population since 2000
From 35,476 in 2000 to 37,159 in 2025: up 4.7%. The 2000, 2010 and 2020 figures are census counts, each for Greenfield as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Greenfield?
The median resident of Greenfield is 42.0 years old; 19.1% are under 18 and 21.9% are 65 or older. The largest group is non-Hispanic white residents at 67.4%, then Hispanic or Latino residents (of any race) at 16.6%. 10.8% of residents were born outside the United States.
| Measure | Greenfield | Milwaukee County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 42.0 ±2.0 | 35.5 | no clear change |
| Under 18 years | 19.1% ±1.8 pts | 23.7% | – |
| 65 years and over | 21.9% ±1.6 pts | 14.7% | – |
| Male | 47.2% ±1.4 pts | 48.6% | – |
| Hispanic or Latino (any race) | 16.6% ±2.4 pts | 17.0% | +5.5 pts |
| White alone, not Hispanic | 67.4% ±3.2 pts | 48.1% | −9.9 pts |
| Black or African American alone, not Hispanic | 4.1% ±1.0 pts | 25.4% | no clear change |
| Asian alone, not Hispanic | 7.2% ±1.9 pts | 4.8% | +2.4 pts |
| American Indian and Alaska Native alone, not Hispanic | 0.1% ±0.1 pts | 0.3% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 4.1% ±1.3 pts | 4.1% | – |
| Some other race alone, not Hispanic | 0.4% ±0.5 pts | 0.3% | – |
| Born outside the United States | 10.8% ±2.1 pts | 9.9% | no clear change |
| Speak a language other than English at home (age 5+) | 19.1% ±2.6 pts | 18.6% | – |
| Civilian veterans (age 18+) | 6.3% ±1.0 pts | 4.3% | – |
| With a disability | 12.2% ±1.3 pts | 12.9% | – |
| No health insurance coverage | 6.4% ±1.6 pts | 7.2% | +2.6 pts |
| High school graduate or higher (age 25+) | 94.2% ±1.0 pts | 89.5% | – |
| Bachelor's degree or higher (age 25+) | 33.5% ±2.8 pts | 34.7% | +3.8 pts |
| Graduate or professional degree (age 25+) | 10.8% ±1.5 pts | 12.6% | – |
| Lived in the same house a year earlier | 89.2% ±2.1 pts | 87.0% | – |
| Moved from another state in the past year | 0.9% ±0.4 pts | 1.8% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Greenfield earn?
Half of Greenfield's 17,393 households earn less than $70,459 a year (±$4,265), against $64,435 in Milwaukee County and $77,485 in Wisconsin. In 2015-2019 it was $74,811 in 2024 dollars; the margins of error cannot tell the two periods apart. 8.6% of residents live below the poverty line.
| Measure | Greenfield | Milwaukee County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $70,459 ±$4,265 | $64,435 | no clear change |
| Mean household income | $90,544 ±$4,852 | $88,840 | – |
| Per capita income | $42,974 ±$2,318 | $38,385 | no clear change |
| People below the poverty line | 8.6% ±2.0 pts | 17.2% | no clear change |
| Children under 18 below the poverty line | 9.6% ±5.4 pts | 23.7% | no clear change |
| Households receiving SNAP | 8.0% ±1.6 pts | 20.5% | – |
| Households with a computer | 93.7% ±1.8 pts | 94.6% | – |
| Households with a broadband subscription | 90.5% ±2.0 pts | 89.6% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Greenfield?
Owners occupy 54.8% of Greenfield's occupied homes and renters 45.2%. The median owner-occupied home is valued at $261,100 by its owner (±$8,179). The median renter pays $1,170 a month including utilities, and 33.2% of renters pay 35% or more of their income on rent.
| Measure | Greenfield | Milwaukee County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $261,100 ±$8,179 | $230,700 | +$42,283 |
| Median gross rent | $1,170 ±$25 | $1,101 | no clear change |
| Renters paying 35% or more of income on rent | 33.2% ±4.8 pts | 40.1% | no clear change |
| Median monthly owner costs, with a mortgage | $1,800 ±$64 | $1,688 | – |
| Owner-occupied homes | 54.8% ±3.1 pts | 49.9% | no clear change |
| Renter-occupied homes | 45.2% ±3.1 pts | 50.1% | – |
| Housing units | 17,932 ±666 | 426,715 | no clear change |
| Homeowner vacancy rate | 0.2% ±0.3 pts | 0.7% | – |
| Rental vacancy rate | 2.9% ±1.8 pts | 6.1% | – |
| Single-family detached homes | 45.1% ±2.6 pts | 45.2% | – |
| Mobile homes | 0.0% ±0.1 pts | 0.5% | – |
| Built 2020 or later | 0.5% ±0.3 pts | 0.7% | – |
| Built 2010 to 2019 | 4.4% ±1.1 pts | 4.3% | – |
| Built 1939 or earlier | 5.9% ±1.2 pts | 27.8% | – |
| Households with no vehicle | 6.6% ±1.6 pts | 12.5% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Greenfield building?
Builders took permits for 3 new housing units in Greenfield in 2025 (3 in single-family houses), 0.1 per 1,000 residents against 4.3 across Wisconsin.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Greenfield work and get to work?
76.7% of Greenfield's workers drive alone and 14.4% work from home. The average trip to work takes 22.2 minutes. The unemployment rate in 2020-2024 averaged 2.5%.
| Measure | Greenfield | Milwaukee County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 64.8% ±2.1 pts | 65.1% | – |
| Unemployment rate | 2.5% ±0.8 pts | 4.8% | no clear change |
| Drove alone to work | 76.7% ±2.6 pts | 68.9% | – |
| Carpooled | 6.8% ±1.5 pts | 8.5% | – |
| Public transportation | 0.7% ±0.6 pts | 3.4% | – |
| Walked | 0.7% ±0.4 pts | 3.0% | – |
| Worked from home | 14.4% ±2.1 pts | 14.4% | +10.9 pts |
| Mean travel time to work | 22.2 min ±1.2 | 22.2 min | −1.6 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Greenfield?
9 census tracts lie mostly in Greenfield, and 1 more reaches into it (2020 census blocks). Their median household incomes run from $55,503 (Tract 1202.01) to $92,901 (Tract 1201.02).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 1204Milwaukee County | 6,274 | $65,389 |
| Tract 1205.02Milwaukee County | 5,564 | $78,037 |
| Tract 1201.01Milwaukee County | 4,333 | $68,125 |
| Tract 1202.03Milwaukee County | 4,170 | $67,167 |
| Tract 1205.01Milwaukee County | 3,806 | $82,150 |
| Tract 1201.02Milwaukee County | 3,808 | $92,901 |
| Tract 1202.01Milwaukee County | 3,629 | $55,503 |
| Tract 1202.02Milwaukee County | 3,255 | $67,253 |
| Tract 1203Milwaukee County | 2,199 | $72,208 |
| Tract 199Milwaukee County | 3,696 | $80,985 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Greenfield) · Census block assignment files
How does Greenfield compare with other places in Wisconsin?
By the Census Bureau's July 2025 estimates, Greenfield is the 1,118th-most populous of the 19,476 U.S. incorporated places that have one and the 22nd-most populous of 608 in Wisconsin.
Greenfield ranks 693rd of 914 places in Wisconsin with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 22nd | 608 |
| Growth 2020-2025 (PEP) | 766th | 884 |
| Residents per square mile | 12th | 914 |
| Median household income | 693rd | 914 |
| Per capita income | 459th | 911 |
| Median home value | 524th | 913 |
| Median gross rent | 235th | 825 |
| Poverty rate | 289th | 706 |
| Bachelor's degree or higher | 264th | 914 |
| Median age | 581st | 914 |
| Owner-occupied share | 870th | 914 |
| Work from home | 250th | 827 |
| Travel time to work | 564th | 914 |
Greenfield's figures with every place in Wisconsin (CSV)
Every place in Wisconsin, sortable · Compare Greenfield with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Greenfield?
6 of the 57 figures for Greenfield on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Greenfield are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Greenfield.