Cost to Own
United States › Illinois › Madison County › St. Jacob Population 1,617 Data vintage ACS 2023 5-Year Rates updated 2026-10-29
The part nobody budgets Even with the mortgage fully paid off, the median home here still costs $844 a month in taxes, insurance, utilities and upkeep. See the full Madison County picture

Total monthly cost of ownership

Cost to Own a Home in St. Jacob, Illinois

A $192,000 home here costs

$1,891

per month, all in, with 20% down at today's 7.24% 30-year fixed rate. By the 28% rule that takes a household income of about $81,000 a year.

P&I 55%Tax 22%Insurance 4%Utilities 11%Upkeep 8%

A standard mortgage calculator would have told you $1,047. The real number is $844 higher every month, 81% more than the payment most buyers budget for.

Compare Madison County with anywhere in America · full county breakdown

Small-place caveat: the Census publishes these figures for St. Jacob from a five-year rolling sample, and with about 1,617 residents that sample is small. The median home value here carries a much wider margin of error than a big-city figure does, so treat it as indicative rather than exact. The Madison County figures are drawn from a far larger sample if you want a steadier number.

St. Jacob median: $192,400
Under 20% adds PMI
Freddie Mac PMMS
IL average household

Where every dollar goes

Only the first line is a mortgage payment. Change any assumption above and every figure below recalculates.

Principal & interest30-year fixed, $153,600 borrowed $1,047
Property tax2.542% effective rate for St. Jacob itself $407
Homeowners insuranceIllinois averages $1,223/yr (NAIC), or 0.47% of home value $75
Electricity19.32ยข/kWh, Illinois residential average, EIA $134
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $160
Total monthly $1,891

St. Jacob against Madison County and Illinois

MeasureSt. JacobMadison County
Median home value$192,400$167,900
Median property tax$4,891$3,232
Effective tax rate2.542%1.925%
Median gross rent$1,260$969
Population1,617264,631

The weather behind that power bill

St. Jacob sits in Madison County, which averages a high of 90.2°F in its hottest month and a low of 24.3°F in its coldest, with 43.36" of precipitation a year and 34% of it in a single three-month stretch. That climate drives 1,579 cooling and 4,209 heating degree days, which is what sets the $134 electricity line above.

See the full climate breakdown for Madison County , month by month temperatures, rainy season timing, snowfall and heating and cooling costs.

Other cities in Madison County

Full Madison County cost breakdown · Every county in Illinois

Talk to someone who works this market

These are St. Jacob averages. What one specific house costs to own, or what it would sell for today, depends on the street and the condition of the place. We will connect you with one licensed local agent who works St. Jacob every week. Free, no obligation, and we never sell your details to a list.

I'm looking to buy in St. Jacob I already own here and may sell

Common questions

How much does it cost to own a home in St. Jacob?

A $192,000 home in St. Jacob, Illinois costs approximately $1,891 per month with 20% down at 7.24%. That is $1,047 principal and interest, $407 property tax, $75 homeowners insurance, $202 utilities and $160 set aside for maintenance.

What is the property tax rate in St. Jacob?

St. Jacob has an effective property tax rate of 2.542%, based on a median home value of $192,400 and median real estate taxes of $4,891. That is higher than the Madison County average of 1.925%.

What is the average home price in St. Jacob?

The median owner-occupied home value in St. Jacob, Illinois is $192,400, against $167,900 across Madison County.

Is it cheaper to rent or buy in St. Jacob?

Median gross rent in St. Jacob is $1,260 a month, against $1,891 to own the median home all in. Renting costs less month to month here, though renting builds no equity.

What salary do you need to buy a home in St. Jacob?

Using the standard 28% rule, housing costs at no more than 28% of gross income, buying the median home in St. Jacob, Illinois at today's rate takes a household income of roughly $81,000 a year. That covers the full $1,891 monthly cost, not just the mortgage payment.

Sources & methodology

  • Median home value, real estate taxes, gross rent and population for St. Jacob, US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
  • Homeowners insurance, NAIC average premium for Illinois.
  • Electricity price, EIA Electric Power Monthly Table 5.6.A.
  • Mortgage rate, Freddie Mac PMMS, refreshed weekly.
  • Maintenance (1%/yr) and water and sewer ($68/mo) are national estimates. Every assumption above is editable.

Full methodology