Twin Grove

County:: McLean County
County Seat:: No
Area (mi²):: 3.964
State:: Illinois

Twin Grove is a CDP located in McLean County, Illinois. Twin Grove has a 2025 population of 1,374. Twin Grove is currently declining at a rate of -0.94% annually but its population has increased by 10.54% since the most recent census, which recorded a population of 1,243 in 2020.

The average household income in Twin Grove is $190,743 with a poverty rate of 8.02%. The median age in Twin Grove is 41.3 years: 40.1 years for males, and 41.7 years for females.

Demographics

The racial composition of Twin Grove includes 92.79% White, and smaller percentages for Two or more races, other race, Black or African American, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Other race

Black or African American

Asian

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	1,442	92.79%
Two or more races	40	2.57%
Other race	34	2.19%
Black or African American	30	1.93%
Asian	8	0.51%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Twin Grove Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Twin Grove's average per capita income is $65,132. Household income levels show a median of $113,250. The poverty rate stands at 8.02%.

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	$128,500	-
Families	$121,111	$207,430
Households	$113,250	$190,743
Non Families	$72,396	$90,625

$65,132

Average Income

$113,250

Median Household Income

8.02%

Poverty Rate