Lyndon township

County:: Whiteside County
County Seat:: No
Area (mi²):: 27.315
State:: Illinois

Lyndon township is located in Whiteside County, Illinois. Lyndon township has a 2025 population of 903. Lyndon township is currently declining at a rate of 0% annually and its population has decreased by -1.2% since the most recent census, which recorded a population of 914 in 2020.

The average household income in Lyndon township is $80,186 with a poverty rate of 5.88%. The median age in Lyndon township is 48.5 years: 50 years for males, and 42.8 years for females.

Demographics

The racial composition of Lyndon township includes 92.83% White, and smaller percentages for Black or African American, Asian, Native American, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Asian

Native American

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	647	92.83%
Two or more races	42	6.03%
Black or African American	7	1%
Asian	1	0.14%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Lyndon township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Lyndon township's average per capita income is $45,670. Household income levels show a median of $54,191. The poverty rate stands at 5.88%.

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	$95,833	-
Families	$79,000	$110,067
Households	$54,191	$80,186
Non Families	$35,078	$51,620

$45,670

Average Income

$54,191

Median Household Income

5.88%

Poverty Rate