Grand Detour township

County:: Ogle County
County Seat:: No
Area (mi²):: 10.994
State:: Illinois

Grand Detour township is located in Ogle County, Illinois. Grand Detour township has a 2025 population of 647. Grand Detour township is currently declining at a rate of -0.31% annually and its population has decreased by -1.37% since the most recent census, which recorded a population of 656 in 2020.

The average household income in Grand Detour township is $91,992 with a poverty rate of 3.03%. The median age in Grand Detour township is 43.7 years: 47.3 years for males, and 42.5 years for females.

Demographics

The racial composition of Grand Detour township includes 78.79% White, 3.03% other race, and smaller percentages for Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Other race

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	338	78.79%
Two or more races	78	18.18%
Other race	13	3.03%
Black or African American	0	0%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%

Grand Detour township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Grand Detour township's average per capita income is $60,742. Household income levels show a median of $74,554. The poverty rate stands at 3.03%.

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	$134,231	-
Families	$127,206	$128,824
Households	$74,554	$91,992
Non Families	$48,162	$50,012

$60,742

Average Income

$74,554

Median Household Income

3.03%

Poverty Rate