United States › Illinois › Rock Island CITY · 2000 CENSUS
Rock Island Illinois · 39,684 residents · 16.9 sq mi
Time machine
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The short version
With 39,684 people, Rock Island is a city in Illinois. Home values have risen by half since 1990, reaching $69,800. Households here earn about 25% less than in Illinois as a whole. The average commute runs 11 minutes. 19% of adults hold a bachelor's degree or higher. Renters pay $437 a month at the median.
At a glance
Lower income
below the US median
US median: $42,589
Mid-age
median age 36.4
US median: 35.2
Less educated
19% hold a bachelor's degree
US average: 24%
Stable housing
home values roughly flat, inflation adjusted
US median home: $120,530
Section 01
Population & growth from 34.5 in 1990
US average: 35.2
Population, 1990 – 2024
36K 37K 38K 40K 41K 1990 2000 2010 2020 2024 Rock Island Age distribution, 2000
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $34,729
+9%inflation adjusted, since 1990
from $24,131 in 1990
US average: $42,589
from $12,381 in 1990
US average: $21,522
from 19.3% in 1990
US average: 12.4%
$69,800
+23%inflation adjusted, since 1990
from $43,200 in 1990
US average: $120,530
$437
+6%inflation adjusted, since 1990
from $313 in 1990
US average: $602
from 62.1% in 1990
34.9% rent
Section 04
Race & ethnicity 1990
White, non-Hispanic 80.7%(32,658)
Hispanic / Latino 3.7%(1,516)
2000
White, non-Hispanic 74.3%(29,485)
Hispanic / Latino 5.9%(2,341)
No data for the years selected.
Section 04 · Origins
Detailed origins & ancestry Detailed origin tables are available for 2024; showing 2024 data.
Hispanic origin
+ 1 more hispanic origin group with data Ancestry
+ 36 more ancestry groups with data from 17.0% in 1990
US average: 24.4%
High school or higher
from 76.3% in 1990
US average: 80.3%
from 5.5% in 1990
US average: 8.8%
Section 06
Commute & transportation from 14.4 min in 1990
US average: 17.6
Section 07
Work & employment No data for the years selected.
Section 08
People & community No data for the years selected.
Marital status
Men 15+
Never married 34.3%(5,128)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
Section 09
Health coverage Showing 2024 (the nearest year with coverage data).
from 11.8% in 2013
US average: 8.4%
from 54.1% in 2020
US average: 54.8%
Direct-purchase
from 11.3% in 2020
US average: 13.8%
from 18.7% in 2020
US average: 18.4%
from 27.7% in 2020
US average: 20.9%
VA health care
from 2.2% in 2020
US average: 2.2%
Any private
from 63.2% in 2020
US average: 67.1%
Any public
from 44.1% in 2020
US average: 36.7%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2024
Gulf War (2001 or later) 22.9%(404)
Gulf War (1990s) 15.7%(278)
Share of the 1,768 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
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Drill deeper
Places similar to Rock Island Head to head
Compare Rock Island to nearby cities ROCK ISLAND VS
Moline
Income $67,701 +95%
Home value $146,300 +110%
Population 42,362 +17%
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ROCK ISLAND VS
Davenport
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ROCK ISLAND VS
Bettendorf
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ROCK ISLAND VS
East Moline
Income $61,779 +78%
Home value $134,600 +93%
Population 20,453 −44%
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Frequently asked
How many people live in Rock Island, Illinois? Rock Island, Illinois has about 39,684 residents according to the 2000 Census.
What is the median household income in Rock Island, Illinois? The typical household in Rock Island, Illinois earns about $34,729 a year. Half of households make more than that, and half make less.
Is Rock Island, Illinois expensive? In Rock Island, Illinois, the median home is worth about $69,800, and the typical rent is about $437 a month.
How educated are people in Rock Island, Illinois? About 18.7% of adults age 25 and over in Rock Island, Illinois hold a bachelor's degree or higher.
What is the poverty rate in Rock Island, Illinois? About 14.5% of people in Rock Island, Illinois live below the federal poverty line.
Has Rock Island, Illinois grown since 1990? Yes, Rock Island, Illinois has shrunk since 1990. The population has lost about 777 residents, a change of about -2 percent over that period.
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