Hillsdale vs Rock Island Arsenal

A side-by-side comparison of Hillsdale and Rock Island Arsenal: population, income, housing, and more.

Hillsdale and Rock Island Arsenal are places in Illinois. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Hillsdale has the higher population (489 vs 372 in Rock Island Arsenal). Hillsdale has the higher median household income ($84,583 vs $53,472 in Rock Island Arsenal).

Population, income & housing

	Hillsdale	Rock Island Arsenal
Population	489	372
Median age	38.5 yrs	43.1 yrs
Median household income	$84,583	$53,472
Median home value	$96,700	—
Median gross rent	$781	$1,408
Housing units	209	111
Homeownership rate	86.9%	0.0%
Bachelor's degree or higher	11.5%	7.0%
Unemployment rate	12.5%	23.8%

Trends (ACS 5-year, 2019–2023)

	Hillsdale	Rock Island Arsenal
Population	448 → 489 (+9.2%)	0 → 372 (+0.0%)
Median household income	$69,844 → $84,583 (+21.1%)	$50,972 → $53,472 (+4.9%)
Median home value	$75,300 → $96,700 (+28.4%)	—
Median gross rent	$675 → $781 (+15.7%)	—

Hillsdale

Population

448489

Median household income

$69,844$84,583

Median home value

$75,300$96,700

Median gross rent

$675$781

Rock Island Arsenal

Population

0372

Median household income

$50,972$53,472

Age & race/ethnicity

Age distribution (share)

	Hillsdale	Rock Island Arsenal
Under 5	8.4%	0.0%
5 to 17	14.5%	34.9%
18 to 24	11.2%	0.0%
25 to 34	7.8%	13.4%
35 to 44	14.3%	12.1%
45 to 54	11.7%	34.7%
55 to 64	15.7%	0.8%
65 to 74	12.3%	4.0%
75 and over	4.1%	0.0%

Race & ethnicity (share)

	Hillsdale	Rock Island Arsenal
White (non-Hispanic)	87.3%	22.0%
Black or African American	0.6%	0.8%
American Indian & Alaska Native	0.0%	0.0%
Asian	0.0%	0.0%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.0%	2.4%
Two or more races	2.9%	65.9%
Hispanic or Latino	9.2%	8.9%

Educational attainment (age 25+)

Share of adults 25+

	Hillsdale	Rock Island Arsenal
No high school diploma	13.7%	11.6%
High school graduate	38.2%	0.0%
Some college or associate's	36.6%	81.4%
Bachelor's degree	8.4%	0.0%
Graduate or professional degree	3.1%	7.0%

Commute to work

How workers get to work (share)

	Hillsdale	Rock Island Arsenal
Drove alone	90.9%	81.7%
Carpooled	7.7%	5.3%
Public transit	0.0%	0.0%
Walked	0.0%	0.0%
Bicycle	0.0%	0.0%
Worked from home	1.4%	0.0%
Other means	0.0%	13.0%

Housing

Units in structure (share)

	Hillsdale	Rock Island Arsenal
1-unit, detached	67.5%	39.6%
1-unit, attached	4.3%	19.8%
2 to 4 units	3.8%	0.0%
5 to 19 units	3.8%	40.5%
20 or more units	0.0%	0.0%
Mobile home & other	20.6%	0.0%

Poverty & households

	Hillsdale	Rock Island Arsenal
Poverty rate	17.0%	0.0%
Average household size	2.79	4.71
Mean commute (minutes)	30	6
Median year structure built	1961	1998