Rockbridge township

County:: Greene County
County Seat:: No
Area (mi²):: 47.691
State:: Illinois

Rockbridge township is located in Greene County, Illinois. Rockbridge township has a 2025 population of 1,481. Rockbridge township is currently declining at a rate of -0.8% annually and its population has decreased by -4.88% since the most recent census, which recorded a population of 1,557 in 2020.

The average household income in Rockbridge township is $87,974 with a poverty rate of 9.03%. The median age in Rockbridge township is 39.7 years: 41.8 years for males, and 39.4 years for females.

Demographics

The racial composition of Rockbridge township includes 94.29% White, and smaller percentages for Black or African American, other race, Native American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Other race

Native American

Asian

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	1,519	94.29%
Two or more races	78	4.84%
Black or African American	12	0.74%
Other race	2	0.12%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%

Rockbridge township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Rockbridge township's average per capita income is $43,333. Household income levels show a median of $73,676. The poverty rate stands at 9.03%.

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	$101,250	-
Families	$81,250	$99,749
Households	$73,676	$87,974
Non Families	$41,250	$48,919

$43,333

Average Income

$73,676

Median Household Income

9.03%

Poverty Rate