Waltham township

County:: LaSalle County
County Seat:: No
Area (mi²):: 36.035
State:: Illinois

Waltham township is located in LaSalle County, Illinois. Waltham township has a 2025 population of 415. Waltham township is currently declining at a rate of 0% annually and its population has decreased by -0.95% since the most recent census, which recorded a population of 419 in 2020.

The average household income in Waltham township is $93,059 with a poverty rate of 2.92%. The median age in Waltham township is 43.3 years: 39.9 years for males, and 43.5 years for females.

Demographics

The racial composition of Waltham township includes 94.78% 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	617	94.78%
Two or more races	34	5.22%
Black or African American	0	0%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Waltham township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Waltham township's average per capita income is $40,536. Household income levels show a median of $82,917. The poverty rate stands at 2.92%.

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	$110,982	-
Families	$89,167	$105,621
Households	$82,917	$93,059
Non Families	$66,250	$62,911

$40,536

Average Income

$82,917

Median Household Income

2.92%

Poverty Rate