Rock Run township Flag

Rock Run township

County Seat:
No
Area (mi²):
47.819
State:
Illinois

Rock Run township is located in Stephenson County, Illinois. Rock Run township has a 2026 population of 2,093. Rock Run township is currently declining at a rate of -0.52% annually and its population has decreased by -4.17% since the most recent census, which recorded a population of 2,184 in 2020.

The median household income in Rock Run township is $90,083 with a poverty rate of 2.87%. The median age in Rock Run township is 50.6 years: 47 years for males, and 51.8 years for females. For every 100 females there are 86.7 males.

2.1K
Total Population
44
Density (mi²)
-11 -0.52%
Growth

Rock Run township Population

Rock Run township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20262,093-11-0.52%
20252,104-11-0.52%
20242,115-11-0.52%
20232,126-19-0.89%
20222,145-19-0.88%
20212,164-20-0.92%
20202,184-6-0.27%
20192,100-15-0.71%
20182,115-15-0.7%
20172,130-23-1.07%
20162,153-8-0.37%
20152,161-28-1.28%
20142,189-18-0.82%
20132,207-6-0.27%
20122,213-19-0.85%
20112,232-15-0.67%
20102,243-4-0.18%

Median Age

Overall: 50.6 years
Female: 51.8 years
Male: 47 years

Rock Run township Adults

There are 1,782 adults, (513 of whom are seniors) in Rock Run township.

Sex Ratio

Female: 1,158 (53.6%)
Male: 1,004 (46.4%)

Demographics

The racial composition of Rock Run township includes 89.13% White, and smaller percentages for other race and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White1,92789.13%
Two or more races1959.02%
Other race401.85%
Race
Population ↓
Percentage (of total)
Two or more races1064.9%
Other race401.85%
White200.93%
Race
Population ↓
Percentage (of total)
White1,90788.21%
Two or more races894.12%

Rock Run township Marital Status

Economics and Income Statistics

Rock Run township 's average per capita income is $60,536. Household income levels show a median of $90,083. The poverty rate stands at 2.87%.

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$123,125-
Families$108,125$136,446
Households$90,083$116,425
Non Families$42,639$56,345

$60,536

Average Income

$90,083

Median Household Income

2.87%

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)