Buffalo Flag

Buffalo

County:
Harper County
County Seat:
Yes
Area (mi²):
1.113
State:
Oklahoma

Buffalo is a town located in Harper County, Oklahoma. Buffalo has a 2026 population of 1,011. It is also the county seat of Harper County. Buffalo is currently declining at a rate of -0.39% annually and its population has decreased by -2.22% since the most recent census, which recorded a population of 1,034 in 2020.

The median household income in Buffalo is $72,065 with a poverty rate of 5.02%. The median age in Buffalo is 39.5 years: 41.5 years for males, and 38.2 years for females. For every 100 females there are 84.1 males.

1K
Total Population
908
Density (mi²)
-4 -0.39%
Growth

Buffalo Population

Buffalo Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20261,011-4-0.39%
20251,015-4-0.39%
20241,01910.1%
20231,01890.89%
20221,009-1-0.1%
20211,010-24-2.32%
20201,034-5-0.48%
20191,298-13-0.99%
20181,311-20-1.5%
20171,33150.38%
20161,326-12-0.9%
20151,338-26-1.91%
20141,36480.59%
20131,356554.23%
20121,301-3-0.23%
20111,30450.38%
20101,29850.39%

Median Age

Overall: 39.5 years
Female: 38.2 years
Male: 41.5 years

Buffalo Adults

There are 770 adults, (215 of whom are seniors) in Buffalo.

Sex Ratio

Female: 593 (54.3%)
Male: 499 (45.7%)

Demographics

The racial composition of Buffalo includes 70.7% White, 23.81% other race, and smaller percentages for Native American, Black or African American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White77270.7%
Other race26023.81%
Two or more races544.95%
Native American40.37%
Black or African American20.18%
Race
Population ↓
Percentage (of total)
Other race26023.81%
Two or more races10.09%
Race
Population ↓
Percentage (of total)
White77270.7%
Two or more races534.85%
Native American40.37%
Black or African American20.18%

Buffalo Marital Status

Economics and Income Statistics

Buffalo 's average per capita income is $40,278. Household income levels show a median of $72,065. The poverty rate stands at 5.02%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Married Families$81,875-
Families$77,500$87,875
Households$72,065$80,415
Non Families-$41,453

$40,278

Average Income

$72,065

Median Household Income

5.02%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)