Rock Island County, Illinois

24 cities & places have their primary county here.

Population: 142,995
Median household income: $66,768
Median home value: $144,700

Rock Island County is a county in Illinois with a population of 142,995. 24 cities and places have their primary county here. Its median household income of $66,768 runs below the Illinois figure of $81,702.

Between 2019 and 2023, Rock Island County's population held roughly steady from 143,873 to 142,995, while its median household income rose 21.7% from $54,858 to $66,768.

69.9% of homes are single-family detached houses. The typical home was built around 1962.

Demographics

ACS 2019–2023

Population: 142,995
Median age: 40.3 yrs
Median household income: $66,768
Median home value: $144,700
Median gross rent: $863
Housing units: 66,742
Homeownership rate: 68.6%
Bachelor's degree or higher: 24.1%
Unemployment rate: 5.7%

Trends

ACS 5-year · 2019–2023

Population

143,873142,995

Median household income

$54,858$66,768

Median home value

$119,400$144,700

Median gross rent

$748$863

Year	Population	Median household income	Median home value	Median gross rent
2019	143,873	$54,858	$119,400	$748
2020	142,801	$55,980	$123,100	$753
2021	144,694	$58,974	$125,200	$785
2022	143,819	$64,435	$139,800	$846
2023	142,995	$66,768	$144,700	$863

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 55.9%

5 to 1716.7%

18 to 248.8%

25 to 3412.0%

35 to 4412.2%

45 to 5411.4%

55 to 6413.0%

65 to 7411.7%

75 and over8.4%

	Count	Share
Under 5	8,404	5.9%
5 to 17	23,819	16.7%
18 to 24	12,563	8.8%
25 to 34	17,212	12.0%
35 to 44	17,387	12.2%
45 to 54	16,356	11.4%
55 to 64	18,563	13.0%
65 to 74	16,691	11.7%
75 and over	12,000	8.4%

Race & ethnicity

	Count	Share
White (non-Hispanic)	97,940	68.5%
Black or African American	14,883	10.4%
American Indian & Alaska Native	111	0.1%
Asian	3,611	2.5%
Native Hawaiian & Pacific Islander	50	0.0%
Some other race	353	0.2%
Two or more races	6,034	4.2%
Hispanic or Latino (any race)	20,013	14.0%

Educational attainment (age 25+)

No high school diploma9.8%

High school graduate30.7%

Some college or associate's35.5%

Bachelor's degree15.1%

Graduate or professional degree9.0%

	Count	Share
No high school diploma	9,599	9.8%
High school graduate	30,159	30.7%
Some college or associate's	34,818	35.5%
Bachelor's degree	14,788	15.1%
Graduate or professional degree	8,845	9.0%

Commute to work

Mean travel time to work: 20 min

Drove alone79.1%

Carpooled8.3%

Public transit1.5%

Walked3.2%

Bicycle0.2%

Worked from home6.7%

Other means1.0%

How workers get to work

	Count	Share
Drove alone	51,242	79.1%
Carpooled	5,398	8.3%
Public transit	970	1.5%
Walked	2,057	3.2%
Bicycle	99	0.2%
Worked from home	4,347	6.7%
Other means	634	1.0%

Travel time

	Count	Share
Under 15 min	19,803	32.8%
15 to 29 min	29,561	48.9%
30 to 44 min	7,209	11.9%
45 to 59 min	1,471	2.4%
60+ min	2,356	3.9%

Households

Average household size: 2.26
Poverty rate: 15.4% (21,244 of 137,868)

	Count	Share
Family households	36,917	60.3%
Nonfamily households	24,275	39.7%

Housing

Median year structure built: 1962

Occupancy

	Count	Share
Occupied	61,192	91.7%
Vacant	5,550	8.3%

Tenure (of occupied units)

	Count	Share
Owner-occupied	41,997	68.6%
Renter-occupied	19,195	31.4%

1-unit, detached69.9%

1-unit, attached4.1%

2 to 4 units7.2%

5 to 19 units8.7%

20 or more units7.6%

Mobile home & other2.5%

Units in structure

	Count	Share
1-unit, detached	46,655	69.9%
1-unit, attached	2,755	4.1%
2 to 4 units	4,803	7.2%
5 to 19 units	5,789	8.7%
20 or more units	5,091	7.6%
Mobile home & other	1,649	2.5%

Geography

County GEOID: 17161
State: Illinois
Land area: 427 sq mi
Water area: 24 sq mi
Center point: 41.4684, -90.5721

Compare with nearby counties

Other counties in Illinois

101