Cost to Own
United StatesWashingtonKing CountyMirrormont Population 4,217 Data vintage ACS 2023 5-Year Rates updated 2026-07-30

Total monthly cost of ownership

Cost to Own a Home in Mirrormont, Washington

A $950,000 home here costs

$6,768

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

A standard mortgage calculator would have told you $4,884. The real number is $1,884 higher every month — 39% more than the payment most buyers budget for.

Mirrormont median: $950,100
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, $760,000 borrowed $4,884
Property tax0.946% effective rate for Mirrormont itself $749
Homeowners insuranceWashington averages $1,001/yr (NAIC), or 0.178% of home value $141
Electricity14.95¢/kWh — Washington residential average, EIA $134
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $792
Total monthly $6,768

Mirrormont against King County and Washington

MeasureMirrormontKing County
Median home value$950,100$811,200
Median property tax$8,991$6,785
Effective tax rate0.946%0.836%
Median gross rent$2,035
Population4,2172,262,713

The weather behind that power bill

Mirrormont sits in King County, which averages a high of 76.7°F in its hottest month and a low of 35.3°F in its coldest, with 63.28" of precipitation a year and 42% of it in a single three-month stretch. That climate drives 151 cooling and 4,991 heating degree days, which is what sets the $134 electricity line above.

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

Other cities in King County

Full King County cost breakdown · Every county in Washington

Common questions

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

A $950,000 home in Mirrormont, Washington costs approximately $6,768 per month with 20% down at 6.66%. That is $4,884 principal and interest, $749 property tax, $141 homeowners insurance, $202 utilities and $792 set aside for maintenance.

What is the property tax rate in Mirrormont?

Mirrormont has an effective property tax rate of 0.946%, based on a median home value of $950,100 and median real estate taxes of $8,991. That is higher than the King County average of 0.836%.

What is the average home price in Mirrormont?

The median owner-occupied home value in Mirrormont, Washington is $950,100, against $811,200 across King County.

Is it cheaper to rent or buy in Mirrormont?

Rent data is not published for Mirrormont at this level of detail.

Sources & methodology

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