Rock Island Arsenal

County:: Rock Island County
County Seat:: No
Area (mi²):: 1.572
State:: Illinois

Rock Island Arsenal is a CDP located in Rock Island County, Illinois. Rock Island Arsenal has a 2025 population of 431. Rock Island Arsenal is currently growing at a rate of 4.36% annually and its population has increased by 22.1% since the most recent census, which recorded a population of 353 in 2020.

The average household income in Rock Island Arsenal is $63,041 with a poverty rate of 0%.The median age in Rock Island Arsenal is 43.1 years: 46.3 years for males, and 27.2 years for females.

Demographics

The racial composition of Rock Island Arsenal includes 22.04% White, 9.95% other race, and smaller percentages for Black or African American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
Two or more races	250	67.2%
White	82	22.04%
Other race	37	9.95%
Black or African American	3	0.81%

Rock Island Arsenal Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Rock Island Arsenal's average per capita income is $14,500. Household income levels show a median of $53,472. The poverty rate stands at 0%.

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
Households	$53,472	$63,041
Families	$53,472	$63,041
Married Families	$53,472	-
Non Families	-	-

$14,500

Average Income

$53,472

Median Household Income

0%

Poverty Rate