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 and multiracial populations.

Population by Race

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%

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