Cost to Own
United States › Virginia › Fairfax County › Idylwood Population 17,469 Data vintage ACS 2023 5-Year Rates updated 2026-10-29
Before you budget for Idylwood FEMA rates natural hazard risk in Fairfax County Relatively High, with winter weather 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 Idylwood, Virginia

A $708,000 home here costs

$5,523

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 $236,500 a year.

P&I 70%Tax 12%Insurance 3%Utilities 5%Upkeep 11%

A standard mortgage calculator would have told you $3,860. The real number is $1,663 higher every month, 43% more than the payment most buyers budget for.

Compare Fairfax County with anywhere in America · full county breakdown

Idylwood median: $708,400
Under 20% adds PMI
Freddie Mac PMMS
VA 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, $566,400 borrowed $3,860
Property tax1.099% effective rate for Idylwood itself $648
Homeowners insuranceVirginia averages $1,199/yr (NAIC), or 0.295% of home value $174
Electricity17.64ยข/kWh, Virginia residential average, EIA $182
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $590
Total monthly $5,523

Idylwood against Fairfax County and Virginia

MeasureIdylwoodFairfax County
Median home value$708,400$699,700
Median property tax$7,783$7,072
Effective tax rate1.099%1.011%
Median gross rent$2,022$2,230
Population17,4691,144,474

The weather behind that power bill

Idylwood sits in Fairfax County, which averages a high of 83.8°F in its hottest month and a low of 23.4°F in its coldest, with 43.57" of precipitation a year and 29% of it in a single three-month stretch. That climate drives 964 cooling and 4,931 heating degree days, which is what sets the $182 electricity line above.

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

Other cities in Fairfax County

Full Fairfax County cost breakdown · Every county in Virginia

Talk to someone who works this market

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

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

Common questions

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

A $708,000 home in Idylwood, Virginia costs approximately $5,523 per month with 20% down at 7.24%. That is $3,860 principal and interest, $648 property tax, $174 homeowners insurance, $250 utilities and $590 set aside for maintenance.

What is the property tax rate in Idylwood?

Idylwood has an effective property tax rate of 1.099%, based on a median home value of $708,400 and median real estate taxes of $7,783. That is higher than the Fairfax County average of 1.011%.

What is the average home price in Idylwood?

The median owner-occupied home value in Idylwood, Virginia is $708,400, against $699,700 across Fairfax County.

Is it cheaper to rent or buy in Idylwood?

Median gross rent in Idylwood is $2,022 a month, against $5,523 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 Idylwood?

Using the standard 28% rule, housing costs at no more than 28% of gross income, buying the median home in Idylwood, Virginia at today's rate takes a household income of roughly $236,500 a year. That covers the full $5,523 monthly cost, not just the mortgage payment.

Sources & methodology

  • Median home value, real estate taxes, gross rent and population for Idylwood, US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
  • Homeowners insurance, NAIC average premium for Virginia.
  • 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