Andover township

County:: Henry County
County Seat:: No
Area (mi²):: 36.564
State:: Illinois

Andover township is located in Henry County, Illinois. Andover township has a 2025 population of 858. Andover township is currently declining at a rate of -0.58% annually and its population has decreased by -3.16% since the most recent census, which recorded a population of 886 in 2020.

The average household income in Andover township is $76,000 with a poverty rate of 11.27%. The median age in Andover township is 56.4 years: 49.6 years for males, and 58 years for females.

Demographics

The racial composition of Andover township includes 94.45% White, and smaller percentages for Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	528	94.45%
Two or more races	31	5.55%
Black or African American	0	0%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Andover township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Andover township's average per capita income is $44,000. Household income levels show a median of $67,500. The poverty rate stands at 11.27%.

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	$88,542	-
Families	$85,000	$89,154
Households	$67,500	$76,000
Non Families	-	$43,138

$44,000

Average Income

$67,500

Median Household Income

11.27%

Poverty Rate