Grant County, Wisconsin Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 29th-largest in Wisconsin
The population of Grant County, Wisconsin is 51,678 as of the 2023 American Community Survey, making it the 29th-largest county in Wisconsin. The median household income is $64,349, the median home value is $186,300, and the median age is 36.9.
The population of Grant County has grown 2.1% since 2010 (51,234 → 52,330), a +0.15% annualized rate.
51,678
Population
+0.15%
Annual growth
45
People / sq mi
$64,349
Median Income
$186,300
Median Home Value
Grant County covers 1,148 sq mi of land at 45.0 people per square mile.
About Grant County, WI
Age is the most distinctive thing about Grant County: a median age of 36.9, younger than the national median. With 51,678 residents, Grant County is a county in Wisconsin. It ranks #29 among counties in Wisconsin by population.
The typical household here earns about $64,349, below the US median of $78,538. About 7.2% of residents live below the federal poverty level, below the national 12.4%. Homes carry a median value of $186,300, with typical rent around $812.
Roughly 24.6% of adults have a bachelor’s, below the national 35.0%. About 9.3% of the workforce is home-based, below the national 14.0%, and the average commute runs about 21 minutes each way.
Grant County Population History (2010-2024)
The county of Grant County had a population of 51,234 in 2010 and 52,330 in 2024, a 2.1% growth over 14 years. The peak was 52,330 in 2024. Average annual growth rate: 0.15%.
52,330
Population (2024)
51,234
Population (2010)
52,330
Peak (2024)
0.15%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 51,234 |
| 2011 | 51,186 |
| 2012 | 50,880 |
| 2013 | 51,011 |
| 2014 | 51,708 |
| 2015 | 52,103 |
| 2016 | 52,044 |
| 2017 | 51,773 |
| 2018 | 51,501 |
| 2019 | 51,509 |
| 2020 | 51,979 |
| 2021 | 51,309 |
| 2022 | 51,337 |
| 2023 | 51,894 |
| 2024 | 52,330 |
Race & Ethnicity
| White | 94.2% |
| Black or African American | 1.8% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.6% |
| Two or More Races | 0.0% |
Age & Sex
36.9
Median Age
48.2%
Female
51.8%
Male
17.9%
Age 65+
Age Distribution
Children (under 15): 17.4% · Seniors (65+): 17.9%
Income & Poverty
| Median household income | $64,349$-11,321 vs state |
| Mean household income | $82,821 |
| Per-capita income | $33,079 |
| Poverty rate | 7.2%+0.6% vs state |
| Unemployment rate | 1.8% |
| Employment-to-population | 61.7% |
Top Industries by Employment
The largest employment sector in Grant County is professional & business services, accounting for 22.4% of workers.
How residents commute
0.3%
Drive alone
6.8%
Carpool
75.4%
Public transit
9.3%
Work from home
20.6 min
Avg commute
Housing
$186,300$-61,100 vs state
Median home value
$812
Median rent
69.1%
Homeownership rate
22,192
Total housing units
89.7%
Occupied
10.3%
Vacant
30.9%
Renter-occupied
Social & access
92.5%
With health insurance
91.8%
With broadband internet
30.3%
Foreign-born
5.7%
Veterans (18+)
10.9%
With a disability
95.5%
Speak language other than English at home
Education
92.9%
High School+
24.6%
Bachelor's+
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Frequently Asked Questions
Grant County, Wisconsin has a population of 51,678 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 29th-largest county in Wisconsin. Population density is 45 people per square mile.
The population of Grant County has grown 2.1% since 2010 (51,234 → 52,330), a +0.15% annualized rate.
The median household income in Grant County, Wisconsin is $64,349, with mean (average) household income of $82,821 and per-capita income of $33,079. 7.2% of residents live below the federal poverty level.
In Grant County, the largest racial and ethnic groups are White (94.2%), Black or African American (1.8%), Hispanic or Latino (0.6%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Grant County, Wisconsin is 36.9 years. Residents are 48.2% female and 51.8% male.
The median home value in Grant County is $186,300 and median monthly rent is $812. 69.1% of occupied housing units are owner-occupied. The county has 22,192 total housing units, 10.3% of which are vacant.
The largest employment sector in Grant County, Wisconsin is professional, scientific, and management services, employing 22.4% of workers. The unemployment rate is 1.8%.
Milwaukee is among the largest cities associated with Grant County, Wisconsin, with a population of 569,756.
Grant County, WI Climate
Grant County, WI has an average annual temperature of 7.8°C (46°F) and receives about 856 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
7.8°C
Avg Temp
856
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -9° / 16° | 23 mm |
| February | -6° / 22° | 26 mm |
| March | 1° / 33° | 55 mm |
| April | 8° / 47° | 83 mm |
| May | 15° / 58° | 94 mm |
| June | 20° / 68° | 113 mm |
| July | 22° / 72° | 104 mm |
| August | 21° / 70° | 111 mm |
| September | 16° / 61° | 91 mm |
| October | 10° / 50° | 61 mm |
| November | 2° / 35° | 60 mm |
| December | -6° / 22° | 35 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Grant County, WI
The most comfortable months to visit Grant County, WI are typically August, July and June, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 28°C high). The coldest is January (near -14°C low). June is usually the wettest month.
Where to stay near Grant County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.