Cost to Own
United States › Illinois › St. Clair County › Smithton Population 3,512 Data vintage ACS 2023 5-Year Rates updated 2026-10-29
Before you budget for Smithton FEMA rates natural hazard risk in St. Clair County Relatively High, with heat wave its highest-ranked hazard against other US counties. It shapes what insurers charge here. See what threatens homes in this county

Total monthly cost of ownership

Cost to Own a Home in Smithton, Illinois

A $252,000 home here costs

$2,358

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 $101,000 a year.

P&I 58%Tax 20%Insurance 4%Utilities 9%Upkeep 9%

A standard mortgage calculator would have told you $1,374. The real number is $984 higher every month, 72% more than the payment most buyers budget for.

Compare St. Clair County with anywhere in America · full county breakdown

Small-place caveat: the Census publishes these figures for Smithton from a five-year rolling sample, and with about 3,512 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 St. Clair County figures are drawn from a far larger sample if you want a steadier number.

Smithton median: $251,600
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, $201,600 borrowed $1,374
Property tax2.254% effective rate for Smithton itself $473
Homeowners insuranceIllinois averages $1,223/yr (NAIC), or 0.47% of home value $99
Electricity19.32ยข/kWh, Illinois residential average, EIA $134
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $210
Total monthly $2,358

Smithton against St. Clair County and Illinois

MeasureSmithtonSt. Clair County
Median home value$251,600$168,800
Median property tax$5,672$3,533
Effective tax rate2.254%2.093%
Median gross rent$857$1,032
Population3,512254,777

The weather behind that power bill

Smithton sits in St. Clair 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 St. Clair County , month by month temperatures, rainy season timing, snowfall and heating and cooling costs.

Other cities in St. Clair County

Full St. Clair County cost breakdown · Every county in Illinois

Talk to someone who works this market

These are Smithton 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 Smithton every week. Free, no obligation, and we never sell your details to a list.

I'm looking to buy in Smithton I already own here and may sell

Common questions

How much does it cost to own a home in Smithton?

A $252,000 home in Smithton, Illinois costs approximately $2,358 per month with 20% down at 7.24%. That is $1,374 principal and interest, $473 property tax, $99 homeowners insurance, $202 utilities and $210 set aside for maintenance.

What is the property tax rate in Smithton?

Smithton has an effective property tax rate of 2.254%, based on a median home value of $251,600 and median real estate taxes of $5,672. That is higher than the St. Clair County average of 2.093%.

What is the average home price in Smithton?

The median owner-occupied home value in Smithton, Illinois is $251,600, against $168,800 across St. Clair County.

Is it cheaper to rent or buy in Smithton?

Median gross rent in Smithton is $857 a month, against $2,358 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 Smithton?

Using the standard 28% rule, housing costs at no more than 28% of gross income, buying the median home in Smithton, Illinois at today's rate takes a household income of roughly $101,000 a year. That covers the full $2,358 monthly cost, not just the mortgage payment.

Sources & methodology

  • Median home value, real estate taxes, gross rent and population for Smithton, 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