All Countries
Rock Island, IL
Full City Profile · Illinois · Rock Island County County
3.1
/5.0
B
Good
36,758
Population
2,097/sq mi density
$57,292
Median Income
$32,507 per capita
$118,400
Home Value
$122,020 Zillow
$819
Median Rent
31.5% income on rent
51°F
Avg Temperature
275 sunny days/yr
371
Violent Crime/100K
2,340 property/100K
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.5 / 5.0
$57,292 median income, 3.9% unemployment
A+
Affordability
5.0 / 5.0
$118,400 home value, $819/mo rent
F
Safety
1.0 / 5.0
371 violent crimes/100K
C+
Education
2.8 / 5.0
22.4% bachelor's degree or higher
Change Over Time (2013–2023)
Population Change
-6.7%
38,901 → 36,296
over 10 years
Annual Pop. Growth
-0.69%
Compound annual growth rate
Median Income Change
+38.3%
$41,422 → $57,292
nominal, not inflation-adjusted
Annual Income Growth
+3.3%
Compound annual growth rate
Population Over Time
Total population for Rock Island across each available Census ACS release.
Median Household Income Over Time
Median household income reported by U.S. Census ACS. Values are nominal (not adjusted for inflation).
Projected 2030
Simple projections extrapolating the 2013–2023 compound annual growth rate forward. These are mathematical extensions of recent trends, not forecasts — real outcomes depend on migration, policy and economic shifts.
Projected Population 2030
34,579
-1,717 from 2023 (36,296)
Projected Median Income 2030
$71,911
+$14,619 from 2023 ($57,292)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 38,901 | — | $41,422 | — |
| 2015 | 38,545 | -0.9% | $41,243 | -0.4% |
| 2017 | 37,812 | -1.9% | $45,244 | +9.7% |
| 2019 | 37,152 | -1.7% | $48,680 | +7.6% |
| 2021 | 36,636 | -1.4% | $50,965 | +4.7% |
| 2023 | 36,296 | -0.9% | $57,292 | +12.4% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.