Demographics of Buffalo County, Wisconsin

Buffalo County, Wisconsin had 13,318 people on July 1, 2025, by the Census Bureau’s estimate: −15 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Buffalo County, in four figures

13,318
Population: July 1, 2025, Vintage 2025 estimate.; −0.1%
Change since July 2020: −15 people.; 46.5 ±0.3
Median age: ACS 2020–⁠2024.; $70,479 ±$3,724
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year's change is births less deaths, net moves from abroad and net moves from elsewhere in the country, with the Bureau's small residual. The 2020 row's components run 3 months, from the April census to July 1.

Buffalo County, Wisconsin's population shrank 0.1% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Buffalo County, Wisconsin's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

U.S. Census Bureau — Census Bureau population estimates — counties and Puerto Rico municipios, with components of change

About this chart

The figures

Buffalo County, Wisconsin's population shrank 0.1% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Buffalo County, Wisconsin's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	13,333	100.0	100.0
2021	13,350	100.1	100.2
2022	13,402	100.5	100.7
2023	13,450	100.9	101.6
2024	13,398	100.5	102.5
2025	13,318	99.9	103.1

3 more columns on a wider screen

Population of Buffalo County, Wisconsin on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	13,333	+10	−1	0	+10
2021	13,350	+17	+9	0	−2
2022	13,402	+52	−32	+4	+85
2023	13,450	+48	−9	0	+58
2024	13,398	−52	−53	+6	−2
2025	13,318	−80	−55	+3	−29

Age, 2020–2024

The median age is 46.5 ±0.3: for men 46.8 ±0.3 and for women 46.2 ±0.5. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

2 more columns on a wider screen

People in Buffalo County by age, ACS 2020–2024
Age	People	Share	Wisconsin	United States
Under 5	635 ±20	4.7% ±0.1	5.3% ±<0.1	5.6% ±<0.1
5 to 17	2,033 ±91	15.2% ±0.7	16.0% ±0.1	16.3% ±<0.1
18 to 24	876 ±60	6.5% ±0.4	9.3% ±0.1	9.1% ±<0.1
25 to 44	2,887 ±121	21.6% ±0.9	25.2% ±0.1	26.9% ±<0.1
45 to 64	3,744 ±135	28.0% ±1.0	25.6% ±0.1	24.8% ±<0.1
65 and over	3,218 ±148	24.0% ±1.1	18.5% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $70,479 ±$3,724, and income per person $38,280 ±$1,258, in 2024 dollars. The median is $77,485 ±$455 in Wisconsin and $80,734 ±$166 in the United States.

Households by income

2 more columns on a wider screen

Households in Buffalo County by income, ACS 2020–2024
Household income	Households	Share	Wisconsin	United States
Under $25,000	851 ±101	14.9% ±1.7	13.1% ±0.2	14.6% ±<0.1
$25,000 to $49,999	1,146 ±142	20.0% ±2.4	17.9% ±0.2	16.7% ±<0.1
$50,000 to $74,999	1,001 ±107	17.5% ±1.8	17.5% ±0.2	15.5% ±<0.1
$75,000 to $99,999	863 ±94	15.1% ±1.6	13.8% ±0.2	12.6% ±<0.1
$100,000 to $149,999	1,134 ±116	19.8% ±2.0	19.1% ±0.2	17.5% ±<0.1
$150,000 to $199,999	481 ±80	8.4% ±1.4	9.4% ±0.1	9.6% ±<0.1
$200,000 or more	244 ±41	4.3% ±0.7	9.2% ±0.1	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

2 more columns on a wider screen

Poverty rate in Buffalo County by age, ACS 2020–2024
Age	Below poverty	Rate	Wisconsin	United States
All ages	1,118 ±125	8.4% ±0.9	10.6% ±0.1	12.5% ±0.1
Under 18	226 ±56	8.7% ±2.1	12.8% ±0.3	16.1% ±0.1
18 to 59	434 ±77	6.8% ±1.2	10.3% ±0.2	11.6% ±0.1
60 and over	458 ±107	10.6% ±2.4	9.3% ±0.2	11.0% ±<0.1

Housing, 2020–2024

1 more column on a wider screen

Housing in Buffalo County, ACS 2020–2024
Measure	Buffalo County	Wisconsin	United States
Housing units	6,522 ±81	2,778,572 ±1,533	143,775,355 ±10,234
Occupied	87.7% ±1.9	89.2% ±0.2	89.9% ±0.1
Vacant	12.3% ±1.6	10.8% ±0.2	10.1% ±0.1
Owner occupied	77.5% ±1.9	67.8% ±0.3	65.2% ±0.3
Renter occupied	22.5% ±2.3	32.2% ±0.2	34.8% ±0.1
Median home value	$213,300 ±$7,564	$266,500 ±$1,051	$332,700 ±$236
Median gross rent	$876 ±$47	$1,087 ±$4	$1,413 ±$2
Median year built	1969 ±3	1975 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

2 more columns on a wider screen

People in Buffalo County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Wisconsin	United States
Hispanic or Latino	385 ±0	2.9% ±<0.1	8.0% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	12,540 ±63	93.6% ±0.5	78.6% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	25 to 89	0.2% to 0.7%	5.9% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	12 to 36	0.1% to 0.3%	2.9% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	7 to 29	0.1% to 0.2%	0.5% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 16	0% to 0.1%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	7 to 25	0.1% to 0.2%	0.3% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	353 ±55	2.6% ±0.4	3.7% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

2 more columns on a wider screen

People in Buffalo County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Wisconsin	United States
Born in the state	7,830 ±243	58.5% ±1.8	70.3% ±0.1	57.3% ±<0.1
Born in another state	5,297 ±241	39.6% ±1.8	23.6% ±0.1	26.9% ±<0.1
Born a citizen outside the states	38 ±16	0.3% ±0.1	0.9% ±<0.1	1.7% ±<0.1
Born abroad	228 ±35	1.7% ±0.3	5.2% ±0.1	14.1% ±<0.1
Naturalized citizens	88 ±24	0.7% ±0.2	2.5% ±0.1	7.4% ±<0.1
Not citizens	140 ±42	1.0% ±0.3	2.7% ±0.1	6.8% ±<0.1

Buffalo County among the counties of Wisconsin

67th of 72 by population, July 2025. Every one is listed on the Wisconsin page.

Counties of Wisconsin near Buffalo County in population, July 2025
County	July 2025	Change since 2020
Ashland County	16,203	+1.1%
Marquette County	15,927	+2.1%
Crawford County	15,910	−1.1%
Rusk County	14,146	−0.2%
Price County	13,988	−0.3%
Buffalo County	13,318	−0.1%
Forest County	9,574	+4.4%
Pepin County	7,513	+2.2%
Iron County	6,127	−0.3%
Florence County	4,748	+4.0%
Menominee County	4,199	−1.4%

Elsewhere on the site

Sources

Census Bureau population estimates — counties and Puerto Rico municipios, with components of change — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Data retrieved September 25, 2026