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Wonder Lake, IL
Full City Profile · Illinois · McHenry County County
3.4
/5.0
B
Good
4,141
Population
835/sq mi density
$102,829
Median Income
$46,862 per capita
$242,300
Home Value
$280,735 Zillow
$1,577
Median Rent
14.2% income on rent
49°F
Avg Temperature
260 sunny days/yr
90
Violent Crime/100K
181 property/100K
B
Overall
3.4 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.7 / 5.0
$102,829 median income, 4.3% unemployment
A+
Affordability
5.0 / 5.0
$242,300 home value, $1,577/mo rent
F
Safety
1.0 / 5.0
90 violent crimes/100K
C+
Education
2.9 / 5.0
23.5% bachelor's degree or higher
Change Over Time (2013–2023)
Population Change
+23.4%
3,968 → 4,895
over 10 years
Annual Pop. Growth
+2.12%
Compound annual growth rate
Median Income Change
+48%
$69,471 → $102,829
nominal, not inflation-adjusted
Annual Income Growth
+4%
Compound annual growth rate
Population Over Time
Total population for Wonder Lake 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
5,669
+774 from 2023 (4,895)
Projected Median Income 2030
$135,316
+$32,487 from 2023 ($102,829)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 3,968 | — | $69,471 | — |
| 2015 | 3,934 | -0.9% | $72,150 | +3.9% |
| 2017 | 3,903 | -0.8% | $76,250 | +5.7% |
| 2019 | 3,875 | -0.7% | $87,938 | +15.3% |
| 2021 | 3,971 | +2.5% | $95,152 | +8.2% |
| 2023 | 4,895 | +23.3% | $102,829 | +8.1% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.