Total monthly cost of ownership
Cost to Own a Home in River Forest, Illinois
A $677,000 home here costs
$5,425per month, all in — with 20% down at today's 6.66% 30-year fixed rate.
A standard mortgage calculator would have told you $3,480. The real number is $1,945 higher every month — 56% more than the payment most buyers budget for.
Where every dollar goes
Only the first line is a mortgage payment. Change any assumption above and every figure below recalculates.
River Forest against Cook County and Illinois
| Measure | River Forest | Cook County |
|---|---|---|
| Median home value | $676,900 | $305,200 |
| Median property tax | $10,001 | $6,053 |
| Effective tax rate | 1.477% | 1.983% |
| Median gross rent | $1,411 | $1,381 |
| Population | 11,489 | 5,185,812 |
The weather behind that power bill
River Forest sits in Cook County, which averages a high of 84.0°F in its hottest month and a low of 16.1°F in its coldest, with 33.23" of precipitation a year and 35% of it in a single three-month stretch. That climate drives 822 cooling and 6,364 heating degree days, which is what sets the $214 electricity line above.
See the full climate breakdown for Cook County — month by month temperatures, rainy season timing, snowfall and heating and cooling costs.
Other cities in Cook County
Common questions
How much does it cost to own a home in River Forest?
A $677,000 home in River Forest, Illinois costs approximately $5,425 per month with 20% down at 6.66%. That is $3,480 principal and interest, $833 property tax, $265 homeowners insurance, $282 utilities and $564 set aside for maintenance.
What is the property tax rate in River Forest?
River Forest has an effective property tax rate of 1.477%, based on a median home value of $676,900 and median real estate taxes of $10,001. That is lower than the Cook County average of 1.983%.
What is the average home price in River Forest?
The median owner-occupied home value in River Forest, Illinois is $676,900, against $305,200 across Cook County.
Is it cheaper to rent or buy in River Forest?
Median gross rent in River Forest is $1,411 a month, against $5,425 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 River Forest — 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.