Rockbridge township Flag

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 2026 population of 1,489. Rockbridge township is currently declining at a rate of -1.26% annually and its population has decreased by -4.31% since the most recent census, which recorded a population of 1,556 in 2020.

The median household income in Rockbridge township is $73,676 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. For every 100 females there are 72.1 males.

1.5K
Total Population
31
Density (mi²)
-19 -1.26%
Growth

Rockbridge township Population

Rockbridge township Population

Data after 2023 is projected based on recent change

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

White (94.29%)

Two or more races (4.84%)

Black or African American (0.74%)

Other race (0.12%)

Race
Population
Percentage (of total)
White1,51994.29%
Two or more races784.84%
Black or African American120.74%
Other race20.12%

Rockbridge township Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

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

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)