Total monthly cost of ownership
Cost to Own a Home in Crystal Lake, Illinois
A $287,000 home here costs
$2,721per month, all in — with 20% down at today's 6.66% 30-year fixed rate.
A standard mortgage calculator would have told you $1,475. The real number is $1,245 higher every month — 84% 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.
Crystal Lake against McHenry County and Illinois
| Measure | Crystal Lake | McHenry County |
|---|---|---|
| Median home value | $287,400 | $286,900 |
| Median property tax | $7,347 | $7,153 |
| Effective tax rate | 2.556% | 2.493% |
| Median gross rent | $1,431 | $1,358 |
| Population | 40,436 | 311,366 |
The weather behind that power bill
Crystal Lake sits in McHenry County, which averages a high of 84.0°F in its hottest month and a low of 14.2°F in its coldest, with 39.35" of precipitation a year and 36% of it in a single three-month stretch. That climate drives 771 cooling and 6,520 heating degree days, which is what sets the $214 electricity line above.
See the full climate breakdown for McHenry County — month by month temperatures, rainy season timing, snowfall and heating and cooling costs.
Other cities in McHenry County
Full McHenry County cost breakdown · Every county in Illinois
Common questions
How much does it cost to own a home in Crystal Lake?
A $287,000 home in Crystal Lake, Illinois costs approximately $2,721 per month with 20% down at 6.66%. That is $1,475 principal and interest, $611 property tax, $112 homeowners insurance, $282 utilities and $239 set aside for maintenance.
What is the property tax rate in Crystal Lake?
Crystal Lake has an effective property tax rate of 2.556%, based on a median home value of $287,400 and median real estate taxes of $7,347. That is higher than the McHenry County average of 2.493%.
What is the average home price in Crystal Lake?
The median owner-occupied home value in Crystal Lake, Illinois is $287,400, against $286,900 across McHenry County.
Is it cheaper to rent or buy in Crystal Lake?
Median gross rent in Crystal Lake is $1,431 a month, against $2,721 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 Crystal Lake — 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.