Cost to Own
United StatesIllinoisDuPage CountyOakbrook Terrace Population 2,714 Data vintage ACS 2023 5-Year Rates updated 2026-07-30

Total monthly cost of ownership

Cost to Own a Home in Oakbrook Terrace, Illinois

A $316,000 home here costs

$2,881

per month, all in — with 20% down at today's 6.66% 30-year fixed rate.

A standard mortgage calculator would have told you $1,625. The real number is $1,256 higher every month — 77% more than the payment most buyers budget for.

Oakbrook Terrace median: $315,600
Under 20% adds PMI
Freddie Mac PMMS
US 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, $252,800 borrowed $1,625
Property tax2.229% effective rate for Oakbrook Terrace itself $587
Homeowners insuranceIllinois averages $1,223/yr (NAIC), or 0.47% of home value $124
Electricity23.85¢/kWh — Illinois residential average, EIA $214
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $263
Total monthly $2,881

Oakbrook Terrace against DuPage County and Illinois

MeasureOakbrook TerraceDuPage County
Median home value$315,600$374,100
Median property tax$7,036$7,833
Effective tax rate2.229%2.094%
Median gross rent$1,830$1,628
Population2,714927,263

The weather behind that power bill

Oakbrook Terrace sits in DuPage County, which averages a high of 84.4°F in its hottest month and a low of 14.7°F in its coldest, with 40.18" of precipitation a year and 34% of it in a single three-month stretch. That climate drives 775 cooling and 6,506 heating degree days, which is what sets the $214 electricity line above.

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

Other cities in DuPage County

Full DuPage County cost breakdown · Every county in Illinois

Common questions

How much does it cost to own a home in Oakbrook Terrace?

A $316,000 home in Oakbrook Terrace, Illinois costs approximately $2,881 per month with 20% down at 6.66%. That is $1,625 principal and interest, $587 property tax, $124 homeowners insurance, $282 utilities and $263 set aside for maintenance.

What is the property tax rate in Oakbrook Terrace?

Oakbrook Terrace has an effective property tax rate of 2.229%, based on a median home value of $315,600 and median real estate taxes of $7,036. That is higher than the DuPage County average of 2.094%.

What is the average home price in Oakbrook Terrace?

The median owner-occupied home value in Oakbrook Terrace, Illinois is $315,600, against $374,100 across DuPage County.

Is it cheaper to rent or buy in Oakbrook Terrace?

Median gross rent in Oakbrook Terrace is $1,830 a month, against $2,881 to own the median home all in. Renting costs less month to month here, though renting builds no equity.

Sources & methodology

  • Median home value, real estate taxes, gross rent and population for Oakbrook Terrace — 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