Saint Jacob, Illinois.
Typical home $352,665 (+4.4% in a year). St. Louis, MO-IL metro.
to buy the typical home at today's mortgage rate — +$1,013 (+121%) since Jan 2020.
- 1 year
- Up $14,893 +4%
- $337,773$352,665 since Sep 2025
- 5 years
- Up $78,600 +29%
- $274,066$352,665 since Sep 2021
Monthly payment to buy the typical home
Home value × that month's 30-year mortgage rate, 20% down, principal and interest. This is the line households feel: prices and rates compound each other.
- Saint Jacob$1,851
- Illinois$1,553
- United States$1,922
At the last five years' pace, a typical home here doubles in price every 14 years.
Typical home values in Saint Jacob, IL rose 4.4% over the past year — faster than the nation's +1.2%.
Living in Saint Jacob, Madison County, Illinois
Saint Jacob is a village of 1,358 people in Madison County. Half its households earn more than $112,188 a year and half less, against $75,793 across Madison County; 3% of its people live below the poverty line. 86% of its homes are lived in by their owners and 14% are rented. Unemployment in Madison County was 3.5% in August 2026, and the county had 2.2% more jobs in 2025 than the year before. The most residents work in schools and health care, then professional services.
Written by AI Claude Sonnet 5.5 wrote this on 23 October 2026 from the figures here, a list of nearby places and what it knows. It can be wrong or out of date.
What it’s like
The place. Saint Jacob is a small village in Madison County, home to a young community by the standards of most places, with a median age well below what many older towns see. Households here earn more than the county as a whole, and very few residents live below the poverty line. Nearly everyone owns the home they live in, and typical home values are high. A good share of adults hold a four-year degree. Winters are cold, with some snow, and summers get hot, with plenty of rain and melted snow across the year.
Work. Many residents work in schools, hospitals and social care, with others in professional and business services, the building trades and shops. Across Madison County, some of the largest workplaces are Southern Illinois University-Edwardsville, World Wide Technology and the Edwardsville school district. Most people commute by car, and the typical trip to work is a fairly long one, while a small share work from home. Unemployment in the county is lower than it was a year ago, and the county has added jobs over the past year.
Things to do. The closest big attractions are a longer drive away, in and around St. Louis. Cahokia is an archaeological site, a place for learning about the region's early history. The Gateway Arch is a park on the riverfront, and the Missouri Botanical Garden is a botanical garden for a quieter day out. Each of these is a longer drive from the village.
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- 567households
- 34%of adults have a degree
- 3%below the poverty line
- 28 mintypical commute
- 8%work from home
What residents work in
Employed residents by industry, from the Census survey. Madison County had 107,517 jobs in 2025, 2.2% more than the year before (Bureau of Labor Statistics).
Weather through the year
Coldest in January, with highs near 43° and lows near 24°; warmest in July, with highs near 90° and lows near 68°. About 11 inches of snow and 43 inches of rain and melted snow a year.
Average daily high and low, 1991–2020, at the Belleville Siu Rsch weather station, 14 miles away (NOAA).
Largest workplaces in Madison County
- Southern Illinois University-EdwardsvilleUniversity or college2,233
- World Wide TechnologySoftware, computer, packaged, merchant wholesalers1,373
- Help At HomeHomemaker's service for elderly or disabled persons, non-medical1,275
- J.F. ElectricElectrical contractors1,200
- Edwardsville CUSD 7School district1,030FTE
- Anderson HospitalGeneral hospital854FTE
- Collinsville CUSD 10School district844FTE
- Phillips 66 - Wood River RefineryCrude oil refining834
Staff on average in 2025, as each workplace reported it to OSHA with its injury records: 277 workplaces with 20 or more staff, 39,988 people in all across the county; Saint Jacob has none of its own. Colleges come from IPEDS (NCES, 2023–24), school districts from the Common Core of Data (NCES, 2023–24) and hospitals from their Medicare cost reports (CMS, 2023); FTE marks full-time equivalent staff. Not listed: many offices and banks, which need not report to OSHA; military bases, whose staff OPM withholds; and, in about half the states, city and county governments.
Natural hazards
- TornadoesVery high
- Heat wavesRelatively high
- Cold wavesRelatively high
- HailRelatively high
- LightningRelatively high
- Inland floodingRelatively high
FEMA’s National Risk Index (December 2025) rates the risk each natural hazard poses to the people, buildings and farms in Saint Jacob’s census tracts, against the rest of the country; all of them together, relatively high. It is meant for planning, not a substitute for a local risk assessment or a flood map: FEMA’s index.
From the U.S. Census Bureau’s 2020 census and its American Community Survey (2020–2024 five-year estimates), and the Bureau of Labor Statistics. A survey, so each figure has a margin of error, and figures it is not sure of are left out. More on Madison County and the St. Louis, MO-IL metro.
Saint Jacob home values
Zillow measures a city over its municipal boundary. Against the state and national figures, mid-tier homes, smoothed and seasonally adjusted.
- Saint Jacob$352,665
- Illinois$295,943
- United States$366,157
When this market ran hot
Each cell is that month's year-on-year home-value growth. Read left to right, top row is the latest year — the 2021–22 band is the boom.
Market heat, inside the city limits
Homes for sale
Active for-sale inventory. More supply hands power to buyers.
- Saint Jacob5
Zip codes with a Saint Jacob address
A different geography, not a breakdown. The figure above covers the municipality; these zips cover everywhere the Post Office calls Saint Jacob — often including townships beyond the city limits. Both come straight from Zillow, and they are not expected to average out.