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Lake Forest, IL
Full City Profile · Illinois · Lake County County
3.9
/5.0
B+
Good
19,190
Population
1,116/sq mi density
$228,120
Median Income
$110,436 per capita
$909,800
Home Value
$1,150,871 Zillow
$2,120
Median Rent
30.2% income on rent
50°F
Avg Temperature
260 sunny days/yr
41
Violent Crime/100K
629 property/100K
B+
Overall
3.9 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
5.0 / 5.0
$228,120 median income, 1.2% unemployment
A
Affordability
4.4 / 5.0
$909,800 home value, $2,120/mo rent
F
Safety
1.0 / 5.0
41 violent crimes/100K
A+
Education
5.0 / 5.0
80.8% bachelor's degree or higher
Change Over Time (2013–2023)
Population Change
+0.2%
19,468 → 19,499
over 10 years
Annual Pop. Growth
+0.02%
Compound annual growth rate
Median Income Change
+55%
$147,162 → $228,120
nominal, not inflation-adjusted
Annual Income Growth
+4.48%
Compound annual growth rate
Population Over Time
Total population for Lake Forest 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
19,526
+27 from 2023 (19,499)
Projected Median Income 2030
$310,024
+$81,904 from 2023 ($228,120)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 19,468 | — | $147,162 | — |
| 2015 | 19,427 | -0.2% | $155,792 | +5.9% |
| 2017 | 19,606 | +0.9% | $169,122 | +8.6% |
| 2019 | 19,457 | -0.8% | $172,165 | +1.8% |
| 2021 | 19,253 | -1% | $194,267 | +12.8% |
| 2023 | 19,499 | +1.3% | $228,120 | +17.4% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.