Buffalo Population

1880–2026

16,992

2026 projection

5.1% since 2020 (increase)

05K10K15K20K18801900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Buffalo. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202616,992+1140.68%
202516,878+1410.84%
202416,737+1781.07%
202316,559+330.20%
202216,526+720.44%
202116,454+2861.77%
202016,168+2281.43%
201915,940+560.35%
201815,884+820.52%
201715,802+540.34%

Showing 10 of 30 years.

The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.

Growth since 2020, compared

Buffalo is growing faster than Minnesota and the U.S., and slower than Wright County.

  • Wright County+11.1%
  • Buffalo+3.7%
  • United States+3.1%
  • Minnesota+2.1%

Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.

Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.

Buffalo Demographics

38.6median age

Median age

Female38.5 yrs
Male38.6 yrs

Adults

12,531
2,848 seniors (65+) · 23% of adults9,683 other adults

Sex

Female 51.4% · 8,485Male 48.6% · 8,014

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 165 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Buffalo Income

$88,820median household income

Median household income

$88,820

Half of households earn more, half earn less

Median earnings

$57,529

Typical yearly pay for a worker 25 or older.

Poverty rate

9%

About 1 in 11 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Buffalo Marital Status

50% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married50%52%47%
Never married29%29%30%
Divorced15%16%14%
Widowed6%2%9%
Separated<1%<1%<1%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201