County · Wisconsin
Grant County, Wisconsin
Grant County, Wisconsin. Grant County had 52,446 residents in 2025 by the Census Bureau's estimate, up 1.0% since 2020, in line with Wisconsin (+1.3%). It holds 55 places (19 cities, villages and boroughs, 33 towns and townships and 3 census-designated) and 12 census tracts. GEOID 55043.
Grant County is the county of the Platteville, WI micropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
52,446
Census Bureau estimate (no margin published)
2020 Census count: 51,938 · ACS 2020-2024: 51,770
Median household income
$66,858
±$2,270 (90% margin)
Wisconsin: $77,485
Median home value
$200,700
±$5,671 (90% margin)
Wisconsin: $266,500
Median gross rent
$813
±$26 (90% margin)
Wisconsin: $1,087
How many people live in Grant County, and is it growing?
The 2020 Census counted 51,938 residents in Grant County. The Census Bureau estimates 52,446 for July 1, 2025, up 1.0% since 2020, in line with Wisconsin (+1.3%). The 2020-2024 American Community Survey puts the population at 51,770 over 1,148 square miles of land.
| Measure | Grant County | Wisconsin | Change since 2015-2019 |
|---|---|---|---|
| Total population | 51,770 | 5,914,872 | +37 |
| Households | 19,960±246 | 2,479,480 | +377 |
| Average household size | 2.41±0.03 | 2.33 | no clear change |
| Housing units | 22,332±71 | 2,778,572 | +256 |
Grant County's population since 2000
From 49,597 in 2000 to 52,446 in 2025: up 5.7%. The 2000, 2010 and 2020 figures are census counts. 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); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Grant County?
Grant County holds 55 places: 19 cities, villages and boroughs (incorporated places), 33 towns and townships (county subdivisions with their own government) and 3 census-designated places. The largest is Platteville with 11,815 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Platteville | 11,836 | $43,083 |
|---|---|---|
| Lancaster | 3,907 | $84,302 |
| Boscobel | 3,286 | $54,071 |
| Fennimore | 2,764 | $61,875 |
| Jamestown (town) | 2,181 | $92,875 |
| Cuba City | 2,138 | $74,571 |
| Platteville (town) | 1,513 | $82,321 |
| Muscoda | 1,307 | $55,833 |
| Hazel Green | 1,173 | $64,688 |
| Hazel Green (town) | 1,084 | $83,646 |
| Dickeyville | 1,015 | $70,913 |
| South Lancaster (town) | 884 | $77,500 |
| Potosi (town) | 813 | $81,389 |
| Smelser (town) | 786 | $72,358 |
| Cassville | 777 | $58,750 |
| Lima (town), Grant County | 771 | $66,759 |
| Muscoda (town) | 754 | $78,000 |
| Bloomington | 741 | $77,750 |
| Beetown (town) | 723 | $86,964 |
| Paris (town), Grant County | 655 | $98,750 |
| Potosi | 646 | $69,000 |
| Montfort | 705 | $90,000 |
| Marion (town), Grant County | 629 | $66,875 |
| Livingston | 637 | $66,875 |
| Fennimore (town) | 594 | $51,875 |
| North Lancaster (town) | 581 | $101,000 |
| Ellenboro (town) | 580 | $86,500 |
| Hickory Grove (town) | 568 | $104,375 |
| Mount Ida (town) | 561 | $66,538 |
| KielerGEOID 5539550 | 557 | $78,750 |
| Waterloo (town), Grant County | 552 | $87,857 |
| Liberty (town), Grant County | 543 | $98,125 |
| Harrison (town), Grant County | 529 | $85,673 |
| Blue River | 457 | $59,861 |
| Cassville (town) | 402 | $54,537 |
| Clifton (town), Grant County | 380 | $91,250 |
| Boscobel (town) | 379 | $64,375 |
| Wingville (town) | 378 | $82,344 |
| Watterstown (town) | 372 | $70,000 |
| Patch Grove (town) | 364 | $69,609 |
| Glen Haven (town) | 363 | $75,357 |
| Bagley | 356 | $53,229 |
| Tennyson | 348 | $61,250 |
| Wyalusing (town) | 336 | $76,875 |
| Bloomington (town) | 331 | $102,188 |
| Little Grant (town) | 314 | $78,250 |
| Sandy HookGEOID 5571585 | 293 | $83,409 |
| Mount Hope (town) | 282 | $62,500 |
| Castle Rock (town)GEOID 5504313100 | 240 | $106,667 |
| Mount Hope | 215 | $64,063 |
| Patch GroveGEOID 5561425 | 201 | $48,958 |
| Woodman (town)GEOID 5504388850 | 158 | $82,750 |
| Millville (town)GEOID 5504352150 | 127 | $63,594 |
| WoodmanGEOID 5588825 | 118 | $83,438 |
| Glen HavenGEOID 5529500 | 64 | $71,250 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Grant County?
The median resident of Grant County is 36.8 years old; 21.1% are under 18 and 18.5% are 65 or older. The largest group is non-Hispanic white residents at 93.0%, then Hispanic or Latino residents (of any race) at 2.6%. 1.5% of residents were born outside the United States.
| Measure | Grant County | Wisconsin | Change since 2015-2019 |
|---|---|---|---|
| Median age | 36.8±0.5 | 40.2 | +0.8 |
| Under 18 years | 21.1% | 21.4% | – |
| 65 years and over | 18.5%±0.1 pts | 18.5% | – |
| Hispanic or Latino (any race) | 2.6% | 8.0% | +0.9 pts |
| White alone, not Hispanic | 93.0%±0.3 pts | 78.6% | −2.0 pts |
| Black or African American alone, not Hispanic | 1.5%±0.2 pts | 5.9% | no clear change |
| Asian alone, not Hispanic | 0.7%±0.1 pts | 2.9% | −0.3 pts |
| American Indian and Alaska Native alone, not Hispanic | 0.1%±0.1 pts | 0.5% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 1.9%±0.3 pts | 3.7% | – |
| Some other race alone, not Hispanic | 0.2%±0.1 pts | 0.3% | – |
| Born outside the United States | 1.5%±0.4 pts | 5.2% | no clear change |
| Speak a language other than English at home (age 5+) | 4.7%±0.8 pts | 9.0% | – |
| Civilian veterans (age 18+) | 5.9%±0.6 pts | 6.2% | – |
| With a disability | 11.3%±0.8 pts | 12.3% | – |
| No health insurance coverage | 8.0%±0.9 pts | 5.2% | +1.8 pts |
| High school graduate or higher (age 25+) | 93.5%±0.6 pts | 93.6% | – |
| Bachelor's degree or higher (age 25+) | 25.6%±1.3 pts | 33.4% | +1.8 pts |
| Graduate or professional degree (age 25+) | 10.1%±1.1 pts | 11.4% | – |
| Moved from another state in the past year | 2.1%±0.4 pts | 2.0% | – |
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 Grant County earn?
Half of Grant County's 19,960 households earn less than $66,858 a year (±$2,270), against $77,485 in Wisconsin. In 2015-2019 it was $67,442 in 2024 dollars; the margins of error cannot tell the two periods apart. 13.0% of residents live below the poverty line.
| Measure | Grant County | Wisconsin | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $66,858±$2,270 | $77,485 | no clear change |
| Mean household income | $86,594±$3,063 | $101,466 | – |
| Per capita income | $34,411±$1,094 | $43,373 | +$2,546 |
| People below the poverty line | 13.0%±1.2 pts | 10.6% | −2.2 pts |
| Children under 18 below the poverty line | 14.4%±2.6 pts | 12.8% | no clear change |
| Households receiving SNAP | 10.6%±1.1 pts | 11.1% | – |
| Households with a broadband subscription | 86.1%±1.1 pts | 90.3% | – |
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 Grant County?
Owners occupy 69.8% of Grant County's occupied homes and renters 30.2%. The median owner-occupied home is valued at $200,700 by its owner (±$5,671). The median renter pays $813 a month including utilities, and 36.6% of renters pay 35% or more of their income on rent.
| Measure | Grant County | Wisconsin | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $200,700±$5,671 | $266,500 | +$18,927 |
| Median gross rent | $813±$26 | $1,087 | −$60 |
| Renters paying 35% or more of income on rent | 36.6%±5.1 pts | 35.0% | no clear change |
| Median monthly owner costs, with a mortgage | $1,495±$42 | $1,689 | – |
| Owner-occupied homes | 69.8%±1.4 pts | 67.8% | no clear change |
| Housing units | 22,332±71 | 2,778,572 | +256 |
| Homeowner vacancy rate | 0.3%±0.3 pts | 0.5% | – |
| Rental vacancy rate | 5.7%±2.0 pts | 4.5% | – |
| Single-family detached homes | 75.1%±1.6 pts | 66.2% | – |
| Mobile homes | 4.9%±0.5 pts | 3.1% | – |
| Built 2020 or later | 1.2%±0.5 pts | 1.4% | – |
| Built 1939 or earlier | 22.6%±1.5 pts | 17.8% | – |
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 Grant County building?
Builders took permits for 122 new housing units across Grant County in 2025 (112 single-family), 2.3 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Grant County get to work?
75.5% of Grant County's workers drive alone and 10.3% work from home. The average trip to work takes 21.1 minutes. The unemployment rate in 2020-2024 averaged 3.1%.
| Measure | Grant County | Wisconsin | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 63.4%±1.0 pts | 65.3% | – |
| Unemployment rate | 3.1%±0.7 pts | 3.2% | no clear change |
| Drove alone to work | 75.5%±1.7 pts | 74.4% | – |
| Carpooled | 5.5%±0.8 pts | 7.3% | – |
| Public transportation | 0.3%±0.2 pts | 1.1% | – |
| Walked | 6.4%±0.9 pts | 2.6% | – |
| Worked from home | 10.3%±1.1 pts | 13.1% | +3.3 pts |
| Mean travel time to work | 21.1 min±0.7 | 22.2 min | no clear change |
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 are Grant County's census tracts?
Grant County is divided into 12 census tracts. Among those with a reliable estimate, median household income runs from $39,842 (Tract 9609) to $85,000 (Tract 9607).
| Tract 960155043960100 | 3,697±268 | $73,125 |
|---|---|---|
| Tract 960255043960200 | 4,698±240 | $59,519 |
| Tract 960355043960300 | 4,570±354 | $61,909 |
| Tract 960455043960400 | 3,623±225 | $68,793 |
| Tract 960555043960500 | 3,692±265 | $73,226 |
| Tract 960655043960600 | 3,899±293 | $78,472 |
| Tract 960755043960700 | 4,146±73 | $85,000 |
| Tract 960855043960800 | 2,954±185 | $78,542 |
| Tract 960955043960900 | 5,060±436 | $39,842 |
| Tract 961055043961000 | 7,324±434 | $56,171 |
| Tract 961155043961100 | 4,175±260 | $73,528 |
| Tract 961255043961200 | 3,932±326 | $81,339 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Grant County compare with Wisconsin's other counties?
| Measure | Rank |
|---|---|
| Population | 28th of 72 |
| Growth 2020-2025 | 43rd of 72 |
| Residents per square mile | 39th of 72 |
| Median household income | 53rd of 72 |
| Median home value | 52nd of 72 |
| Median gross rent | 52nd of 72 |
| Poverty rate | 14th of 72 |
| Bachelor's degree or higher | 34th of 72 |
| Median age | 66th of 72 |
Source: PlainCities ranks 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 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 Grant County 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' school search.