Buffalo township

County:: Sangamon County
County Seat:: No
Area (mi²):: 33.686
State:: Illinois

Buffalo township is located in Sangamon County, Illinois. Buffalo township has a 2025 population of 2,629. Buffalo township is currently declining at a rate of -0.19% annually and its population has decreased by -1.57% since the most recent census, which recorded a population of 2,671 in 2020.

The average household income in Buffalo township is $69,497 with a poverty rate of 19.89%. The median age in Buffalo township is 33.5 years: 33.2 years for males, and 36.3 years for females.

Demographics

The racial composition of Buffalo township includes 98.53% White, and smaller percentages for Native American, Asian, Two or more races, Black or African American, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Native American

Asian

Two or more races

Black or African American

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	2,617	98.53%
Native American	18	0.68%
Asian	11	0.41%
Two or more races	10	0.38%
Black or African American	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Buffalo township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Buffalo township's average per capita income is $39,872. Household income levels show a median of $54,875. The poverty rate stands at 19.89%.

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	$92,870	-
Families	$70,809	$79,436
Households	$54,875	$69,497
Non Families	$32,255	$47,104

$39,872

Average Income

$54,875

Median Household Income

19.89%

Poverty Rate