All Countries
Lenzburg, IL
Full City Profile · Illinois · St. Clair County County
3.2
/5.0
B
Good
513
Population
442/sq mi density
$44,722
Median Income
$25,688 per capita
$92,500
Home Value
$135,686 Zillow
$645
Median Rent
29.7% income on rent
55°F
Avg Temperature
293 sunny days/yr
B
Overall
3.2 / 5.0
Good overall score based on economy, affordability, safety and education
B
Economy
3.2 / 5.0
$44,722 median income, 3.0% unemployment
A+
Affordability
5.0 / 5.0
$92,500 home value, $645/mo rent
C+
Safety
2.5 / 5.0
0 violent crimes/100K
C
Education
2.0 / 5.0
12.9% bachelor's degree or higher
Change Over Time (2013–2023)
Population Change
-10.2%
502 → 451
over 10 years
Annual Pop. Growth
-1.07%
Compound annual growth rate
Median Income Change
+43.4%
$31,188 → $44,722
nominal, not inflation-adjusted
Annual Income Growth
+3.67%
Compound annual growth rate
Population Over Time
Total population for Lenzburg 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
418
-33 from 2023 (451)
Projected Median Income 2030
$57,556
+$12,834 from 2023 ($44,722)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 502 | — | $31,188 | — |
| 2015 | 495 | -1.4% | $36,875 | +18.2% |
| 2017 | 491 | -0.8% | $42,083 | +14.1% |
| 2019 | 484 | -1.4% | $39,850 | -5.3% |
| 2021 | 463 | -4.3% | $43,636 | +9.5% |
| 2023 | 451 | -2.6% | $44,722 | +2.5% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.