All Countries
Flat Rock, IL
Full City Profile · Illinois · Lawrence County County
2.9
/5.0
C+
Fair
362
Population
421/sq mi density
$49,881
Median Income
$28,516 per capita
$56,700
Home Value
$106,877 Zillow
56°F
Avg Temperature
293 sunny days/yr
676
Violent Crime/100K
1,653 property/100K
C+
Overall
2.9 / 5.0
Fair overall score based on economy, affordability, safety and education
B+
Economy
3.6 / 5.0
$49,881 median income, 4.2% unemployment
A+
Affordability
5.0 / 5.0
$56,700 home value, /mo rent
F
Safety
1.0 / 5.0
676 violent crimes/100K (78% above avg)
C
Education
2.1 / 5.0
13.4% bachelor's degree or higher
Change Over Time (2013–2023)
Population Change
-1.2%
323 → 319
over 10 years
Annual Pop. Growth
-0.12%
Compound annual growth rate
Median Income Change
+39%
$35,893 → $49,881
nominal, not inflation-adjusted
Annual Income Growth
+3.35%
Compound annual growth rate
Population Over Time
Total population for Flat Rock 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
316
-3 from 2023 (319)
Projected Median Income 2030
$62,822
+$12,941 from 2023 ($49,881)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 323 | — | $35,893 | — |
| 2015 | 320 | -0.9% | $43,250 | +20.5% |
| 2017 | 315 | -1.6% | $41,667 | -3.7% |
| 2019 | 307 | -2.5% | $35,000 | -16% |
| 2021 | 322 | +4.9% | $42,000 | +20% |
| 2023 | 319 | -0.9% | $49,881 | +18.8% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.