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St. Jacob, IL
Village in Madison County, Illinois.
Population
1,759
Land area
0.8sq mi
People per sq mi
2,078
ZIP codes
0
St. Jacob and its ZIP codes
St. Jacob at a glance
- St. Jacob is about 9.1 times as dense as Illinois as a whole.
- The median household income is $112,188, 35% above the Illinois median of $83,390.
- A typical owner-occupied home is valued at $201,000 (24% below Illinois) and median rent is $1,138 a month.
Local data for St. Jacob, IL
Counts from official public data
Housing and community stats
St. Jacob, IL, American Community Survey 2020-2024
Median household income
$112,188
Poverty rate
3.0%
Median home value
$201,000
Median rent
$1,138/mo
Homeownership
85.5%
Bachelor's or higher
34.2%
Median age
33.9
Average commute
28.0 min
Largest reported origins and ancestries: German Americans (650), Irish Americans (198), Scottish Americans (101).
Economy and federal money
Jobs, pay, income and spending are for Madison County. PPP loans are for St. Jacob.
Unemployment rate
3.4%
Sep 2026, -0.7 pts in a year
Average annual pay
$59,911
107,517 jobs, 2025
Income per person
$62,684
BEA, 2024
Federal spending
$1.7B
FY 2026, $6,581 per person
How people get to work
St. Jacob, IL, workers 16 and older. American Community Survey 5-year estimates
- Drove alone85.8%
- Carpooled5.0%
- Public transit0.5%
- Walked0.6%
- Bicycle0.0%
- Taxi, ride-hailing, motorcycle or other0.0%
- Worked from home8.2%
Average one-way commute: 28.0 minutes for people who do not work from home.
Environment and hazard risk
St. Jacob, IL, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Moderate
Top: heat wave
Storm events since 1996
854
Countywide, mostly thunderstorm wind
Flood insurance policies
824
0.8% of homes, county
July high / Jan low
90° / 24°F
43.4 inches of rain a year
Health statistics
Share of adults in St. Jacob, IL, CDC PLACES estimates
Obesity
35.2%
U.S. 33.3% +1.9 pts
Diabetes
7.6%
U.S. 12.1% -4.5 pts
Smoking
10.4%
U.S. 12.8% -2.4 pts
Uninsured (18-64)
5.3%
U.S. 11.1% -5.8 pts
Cities near St. Jacob
| Name | Distance | Land area (sq mi) |
|---|---|---|
| MarineVillage | 4.6 mi | 0.7 |
| TroyCity | 4.6 mi | 6.2 |
| HighlandCity | 5.8 mi | 7.2 |
| SummerfieldVillage | 8.8 mi | 0.5 |
| TrentonCity | 8.9 mi | 1.9 |
| GrantforkVillage | 9.1 mi | 0.4 |
| LebanonCity | 9.2 mi | 2.7 |
| PierronVillage | 10 mi | 0.7 |
| AvistonVillage | 11 mi | 1.6 |
| AlhambraVillage | 11 mi | 0.8 |
| O'FallonCity | 12 mi | 15.8 |
| St. RoseVillage | 12 mi | 0.6 |
| MaryvilleVillage | 12 mi | 5.8 |
| Glen CarbonVillage | 12 mi | 10.3 |
| HamelVillage | 12 mi | 1.2 |
| CollinsvilleCity | 13 mi | 15.4 |
Frequently asked questions
- What county is St. Jacob, IL in?
- St. Jacob is in Madison County, Illinois.
- What is the population of St. Jacob, IL?
- About 1,759 people live in St. Jacob, based on American Community Survey 5-year estimates.
- What cities are near St. Jacob?
- Nearby places include Marine (4.6 mi), Troy (4.6 mi), Highland (5.8 mi), Summerfield (8.8 mi), Trenton (8.9 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023