Alto township

County:: Lee County
County Seat:: No
Area (mi²):: 34.905
State:: Illinois

Alto township is located in Lee County, Illinois. Alto township has a 2025 population of 509. Alto township is currently declining at a rate of -0.97% annually and its population has decreased by -3.23% since the most recent census, which recorded a population of 526 in 2020.

The average household income in Alto township is $123,601 with a poverty rate of 2.64%. The median age in Alto township is 42.6 years: 42.2 years for males, and 50.1 years for females.

Demographics

The racial composition of Alto township includes 92.09% White, and smaller percentages for other race, Native American, Black or African American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Other race

Native American

Black or African American

Asian

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	594	92.09%
Two or more races	21	3.26%
Other race	12	1.86%
Native American	10	1.55%
Black or African American	6	0.93%
Asian	2	0.31%
Native Hawaiian or Pacific Islander	0	0%

Alto township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Alto township's average per capita income is $60,286. Household income levels show a median of $121,528. The poverty rate stands at 2.64%.

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	$127,292	-
Families	$126,250	$123,146
Households	$121,528	$123,601
Non Families	-	$122,406

$60,286

Average Income

$121,528

Median Household Income

2.64%

Poverty Rate