Cost to Own
United States › Illinois › McHenry County › Johnsburg Population 6,374 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 $1,204 a month in taxes, insurance, utilities and upkeep. See the full McHenry County picture

Total monthly cost of ownership

Cost to Own a Home in Johnsburg, Illinois

A $312,000 home here costs

$2,905

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 $124,500 a year.

P&I 59%Tax 21%Insurance 4%Utilities 7%Upkeep 9%

A standard mortgage calculator would have told you $1,701. The real number is $1,204 higher every month, 71% more than the payment most buyers budget for.

Compare McHenry County with anywhere in America · full county breakdown

Johnsburg median: $312,200
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, $249,600 borrowed $1,701
Property tax2.386% effective rate for Johnsburg itself $620
Homeowners insuranceIllinois averages $1,223/yr (NAIC), or 0.47% of home value $122
Electricity19.32ยข/kWh, Illinois residential average, EIA $134
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $260
Total monthly $2,905

Johnsburg against McHenry County and Illinois

MeasureJohnsburgMcHenry County
Median home value$312,200$286,900
Median property tax$7,449$7,153
Effective tax rate2.386%2.493%
Median gross rent$1,330$1,358
Population6,374311,366

The weather behind that power bill

Johnsburg 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 $134 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

Talk to someone who works this market

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

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

Common questions

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

A $312,000 home in Johnsburg, Illinois costs approximately $2,905 per month with 20% down at 7.24%. That is $1,701 principal and interest, $620 property tax, $122 homeowners insurance, $202 utilities and $260 set aside for maintenance.

What is the property tax rate in Johnsburg?

Johnsburg has an effective property tax rate of 2.386%, based on a median home value of $312,200 and median real estate taxes of $7,449. That is lower than the McHenry County average of 2.493%.

What is the average home price in Johnsburg?

The median owner-occupied home value in Johnsburg, Illinois is $312,200, against $286,900 across McHenry County.

Is it cheaper to rent or buy in Johnsburg?

Median gross rent in Johnsburg is $1,330 a month, against $2,905 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 Johnsburg?

Using the standard 28% rule, housing costs at no more than 28% of gross income, buying the median home in Johnsburg, Illinois at today's rate takes a household income of roughly $124,500 a year. That covers the full $2,905 monthly cost, not just the mortgage payment.

Sources & methodology

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