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 and multiracial populations.

Population by Race

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%

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