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Somonauk, IL
Full City Profile · Illinois · Kendall County County
3.7
/5.0
B+
Good
1,592
Population
637/sq mi density
$81,731
Median Income
$44,114 per capita
$221,500
Home Value
$312,530 Zillow
$883
Median Rent
33.8% income on rent
48°F
Avg Temperature
275 sunny days/yr
B+
Overall
3.7 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.5 / 5.0
$81,731 median income, 2.6% unemployment
A+
Affordability
5.0 / 5.0
$221,500 home value, $883/mo rent
C+
Safety
2.5 / 5.0
0 violent crimes/100K
C+
Education
2.8 / 5.0
22.7% bachelor's degree or higher
Change Over Time (2013–2023)
Population Change
-5.9%
1,872 → 1,762
over 10 years
Annual Pop. Growth
-0.6%
Compound annual growth rate
Median Income Change
+42.7%
$57,292 → $81,731
nominal, not inflation-adjusted
Annual Income Growth
+3.62%
Compound annual growth rate
Population Over Time
Total population for Somonauk 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
1,689
-73 from 2023 (1,762)
Projected Median Income 2030
$104,832
+$23,101 from 2023 ($81,731)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 1,872 | — | $57,292 | — |
| 2015 | 1,873 | +0.1% | $56,799 | -0.9% |
| 2017 | 1,872 | -0.1% | $59,375 | +4.5% |
| 2019 | 1,875 | +0.2% | $65,139 | +9.7% |
| 2021 | 1,776 | -5.3% | $72,500 | +11.3% |
| 2023 | 1,762 | -0.8% | $81,731 | +12.7% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.