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Rockbridge, IL
Full City Profile · Illinois · Greene County County
3.5
/5.0
B+
Good
115
Population
155/sq mi density
$86,250
Median Income
$33,737 per capita
$91,900
Home Value
$129,647 Zillow
53°F
Avg Temperature
293 sunny days/yr
B+
Overall
3.5 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.7 / 5.0
$86,250 median income, 0.0% unemployment
A+
Affordability
5.0 / 5.0
$91,900 home value, /mo rent
C+
Safety
2.5 / 5.0
0 violent crimes/100K
D
Education
1.8 / 5.0
10.3% bachelor's degree or higher
Change Over Time (2013–2023)
Population Change
+4.8%
166 → 174
over 10 years
Annual Pop. Growth
+0.47%
Compound annual growth rate
Median Income Change
+81.6%
$47,500 → $86,250
nominal, not inflation-adjusted
Annual Income Growth
+6.15%
Compound annual growth rate
Population Over Time
Total population for Rockbridge 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
180
+6 from 2023 (174)
Projected Median Income 2030
$130,978
+$44,728 from 2023 ($86,250)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 166 | — | $47,500 | — |
| 2015 | 162 | -2.4% | $37,059 | -22% |
| 2017 | 159 | -1.9% | $38,523 | +4% |
| 2019 | 156 | -1.9% | — | — |
| 2021 | 174 | +11.5% | $61,875 | — |
| 2023 | 174 | +0% | $86,250 | +39.4% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.