Cost to Own
United StatesVirginiaFairfax CountyMerrifield Population 20,549 Data vintage ACS 2023 5-Year Rates updated 2026-07-30

Total monthly cost of ownership

Cost to Own a Home in Merrifield, Virginia

A $638,000 home here costs

$4,729

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

A standard mortgage calculator would have told you $3,280. The real number is $1,449 higher every month — 44% more than the payment most buyers budget for.

Merrifield median: $637,600
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, $510,400 borrowed $3,280
Property tax1.004% effective rate for Merrifield itself $534
Homeowners insuranceVirginia averages $1,199/yr (NAIC), or 0.295% of home value $157
Electricity17.61¢/kWh — Virginia residential average, EIA $158
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $532
Total monthly $4,729

Merrifield against Fairfax County and Virginia

MeasureMerrifieldFairfax County
Median home value$637,600$699,700
Median property tax$6,404$7,072
Effective tax rate1.004%1.011%
Median gross rent$2,308$2,230
Population20,5491,144,474

The weather behind that power bill

Merrifield 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 $158 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

Common questions

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

A $638,000 home in Merrifield, Virginia costs approximately $4,729 per month with 20% down at 6.66%. That is $3,280 principal and interest, $534 property tax, $157 homeowners insurance, $226 utilities and $532 set aside for maintenance.

What is the property tax rate in Merrifield?

Merrifield has an effective property tax rate of 1.004%, based on a median home value of $637,600 and median real estate taxes of $6,404. That is in line with the Fairfax County average of 1.011%.

What is the average home price in Merrifield?

The median owner-occupied home value in Merrifield, Virginia is $637,600, against $699,700 across Fairfax County.

Is it cheaper to rent or buy in Merrifield?

Median gross rent in Merrifield is $2,308 a month, against $4,729 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 Merrifield — 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