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Lenzburg, IL
Village in St. Clair County, Illinois.
Population
428
Land area
1.2sq mi
People per sq mi
371
ZIP codes
0
Lenzburg and its ZIP codes
Lenzburg at a glance
- Lenzburg is 62% denser than Illinois as a whole.
Local data for Lenzburg, IL
Counts from official public data
Economy and federal money
Jobs, pay, income and spending are for St. Clair County. PPP loans are for Lenzburg.
Unemployment rate
3.8%
Sep 2026, -0.8 pts in a year
Average annual pay
$59,034
89,192 jobs, 2025
Income per person
$61,712
BEA, 2024
Federal spending
$2.6B
FY 2026, $10,147 per person
Environment and hazard risk
Lenzburg, IL, from FEMA, NOAA and EPA
Natural hazard risk
Relatively High
Top: heat wave
Storm events since 1996
829
Countywide, mostly thunderstorm wind
Flood insurance policies
1,007
1.0% of homes, county
July high / Jan low
88° / 22°F
45.6 inches of rain a year
Health statistics
Share of adults in Lenzburg, IL, CDC PLACES estimates
Obesity
35.9%
U.S. 33.3% +2.6 pts
Diabetes
11.5%
U.S. 12.1% -0.6 pts
Smoking
15.3%
U.S. 12.8% +2.5 pts
Uninsured (18-64)
6.7%
U.S. 11.1% -4.4 pts
Cities near Lenzburg
| Name | Distance | Land area (sq mi) |
|---|---|---|
| MarissaVillage | 3.1 mi | 7.2 |
| New AthensVillage | 4.1 mi | 2.1 |
| DarmstadtCensus-designated place | 5.3 mi | 0.1 |
| FayettevilleVillage | 6.4 mi | 0.3 |
| BaldwinVillage | 7.3 mi | 0.7 |
| St. LiboryVillage | 7.6 mi | 1 |
| TildenVillage | 8.6 mi | 1 |
| HeckerVillage | 9.8 mi | 0.3 |
| Red BudCity | 11 mi | 2.6 |
| SpartaCity | 11 mi | 11.2 |
| VenedyVillage | 12 mi | 0.3 |
| FreeburgVillage | 13 mi | 6.8 |
| SmithtonVillage | 13 mi | 4.5 |
| CoultervilleVillage | 13 mi | 0.6 |
| PaderbornCensus-designated place | 14 mi | 0.2 |
| FloravilleCensus-designated place | 14 mi | 0.1 |
Frequently asked questions
- What county is Lenzburg, IL in?
- Lenzburg is in St. Clair County, Illinois.
- What is the population of Lenzburg, IL?
- About 428 people live in Lenzburg, based on American Community Survey 5-year estimates.
- What cities are near Lenzburg?
- Nearby places include Marissa (3.1 mi), New Athens (4.1 mi), Darmstadt (5.3 mi), Fayetteville (6.4 mi), Baldwin (7.3 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023