Buffalo County, Wisconsin Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 67th-largest in Wisconsin
The population of Buffalo County, Wisconsin is 13,341 as of the 2023 American Community Survey, making it the 67th-largest county in Wisconsin. The median household income is $68,722, the median home value is $197,600, and the median age is 46.4.
The population of Buffalo County has declined 0.6% since 2010 (13,551 → 13,464), a -0.05% annualized rate.
13,341
Population
-0.05%
Annual growth
20
People / sq mi
$68,722
Median Income
$197,600
Median Home Value
Buffalo County covers 676 sq mi of land at 19.7 people per square mile.
About Buffalo County, WI
Buffalo County is a county in Wisconsin with a population of 13,341. It ranks #67 among counties in Wisconsin by population. The median age is 46.4, older than the national median. The population is 50.7% male and 49.3% female.
The median household income in Buffalo County is $68,722, below the US median of $74,580. 7.0% of residents live below the federal poverty level. Home values sit at a median of $197,600, with monthly rent averaging $822. The homeownership rate of 78.3% is higher than the national rate of 64.8%.
Educational attainment in Buffalo County reflects 22.1% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 9.4% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 25.3 minutes each way.
Buffalo County Population History (2010-2024)
The county of Buffalo County had a population of 13,551 in 2010 and 13,464 in 2024, a -0.6% growth over 14 years. The peak was 13,551 in 2010. Average annual growth rate: -0.04%.
13,464
Population (2024)
13,551
Population (2010)
13,551
Peak (2010)
-0.04%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 13,551 |
| 2011 | 13,441 |
| 2012 | 13,344 |
| 2013 | 13,367 |
| 2014 | 13,234 |
| 2015 | 13,245 |
| 2016 | 13,148 |
| 2017 | 13,115 |
| 2018 | 13,126 |
| 2019 | 13,012 |
| 2020 | 13,323 |
| 2021 | 13,340 |
| 2022 | 13,400 |
| 2023 | 13,440 |
| 2024 | 13,464 |
Race & Ethnicity
| White | 95.2% |
| Black or African American | 0.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.8% |
| Two or More Races | 0.0% |
Age & Sex
46.4
Median Age
49.3%
Female
50.7%
Male
23.2%
Age 65+
Age Distribution
Children (under 15): 16.4% · Seniors (65+): 23.2%
Income & Poverty
| Median household income | $68,722$-6,948 vs state |
| Mean household income | $80,608 |
| Per-capita income | $36,164 |
| Poverty rate | 7.0%+0.4% vs state |
| Unemployment rate | 1.6% |
| Employment-to-population | 61.4% |
Top Industries by Employment
The largest employment sector in Buffalo County is professional & business services, accounting for 22.2% of workers.
How residents commute
0.1%
Drive alone
4.0%
Carpool
79.5%
Public transit
9.4%
Work from home
25.3 min
Avg commute
Housing
$197,600$-49,800 vs state
Median home value
$822
Median rent
78.3%
Homeownership rate
6,546
Total housing units
87.0%
Occupied
13.0%
Vacant
21.7%
Renter-occupied
Social & access
95.2%
With health insurance
90.6%
With broadband internet
38.6%
Foreign-born
8.4%
Veterans (18+)
15.3%
With a disability
97.0%
Speak language other than English at home
Education
92.0%
High School+
22.1%
Bachelor's+
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Part of Wisconsin
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County rankings
Frequently Asked Questions
Buffalo County, Wisconsin has a population of 13,341 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 67th-largest county in Wisconsin. Population density is 20 people per square mile.
The population of Buffalo County has declined 0.6% since 2010 (13,551 → 13,464), a -0.05% annualized rate.
The median household income in Buffalo County, Wisconsin is $68,722, with mean (average) household income of $80,608 and per-capita income of $36,164. 7.0% of residents live below the federal poverty level.
In Buffalo County, the largest racial and ethnic groups are White (95.2%), Hispanic or Latino (0.8%), Black or African American (0.5%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Buffalo County, Wisconsin is 46.4 years. Residents are 49.3% female and 50.7% male.
The median home value in Buffalo County is $197,600 and median monthly rent is $822. 78.3% of occupied housing units are owner-occupied. The county has 6,546 total housing units, 13.0% of which are vacant.
The largest employment sector in Buffalo County, Wisconsin is professional, scientific, and management services, employing 22.2% of workers. The unemployment rate is 1.6%.
Milwaukee is among the largest cities associated with Buffalo County, Wisconsin, with a population of 569,756.
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Population, race, income, age, and trends across Wisconsin
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.