Cost to Own
United StatesArizonaYavapai CountyWilliamson Population 6,112 Data vintage ACS 2023 5-Year Rates updated 2026-07-30

Total monthly cost of ownership

Cost to Own a Home in Williamson, Arizona

A $703,000 home here costs

$4,817

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

A standard mortgage calculator would have told you $3,614. The real number is $1,203 higher every month — 33% more than the payment most buyers budget for.

Williamson median: $703,000
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, $562,400 borrowed $3,614
Property tax0.452% effective rate for Williamson itself $265
Homeowners insuranceArizona averages $917/yr (NAIC), or 0.252% of home value $148
Electricity15.23¢/kWh — Arizona residential average, EIA $137
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $586
Total monthly $4,817

Williamson against Yavapai County and Arizona

MeasureWilliamsonYavapai County
Median home value$703,000$392,900
Median property tax$3,179$1,734
Effective tax rate0.452%0.441%
Median gross rent$919$1,258
Population6,112241,656

The weather behind that power bill

Williamson sits in Yavapai County, which averages a high of 90.3°F in its hottest month and a low of 25.5°F in its coldest, with 12.85" of precipitation a year and 44% of it in a single three-month stretch. That climate drives 1,068 cooling and 4,056 heating degree days, which is what sets the $137 electricity line above.

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

Other cities in Yavapai County

Full Yavapai County cost breakdown · Every county in Arizona

Common questions

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

A $703,000 home in Williamson, Arizona costs approximately $4,817 per month with 20% down at 6.66%. That is $3,614 principal and interest, $265 property tax, $148 homeowners insurance, $205 utilities and $586 set aside for maintenance.

What is the property tax rate in Williamson?

Williamson has an effective property tax rate of 0.452%, based on a median home value of $703,000 and median real estate taxes of $3,179. That is higher than the Yavapai County average of 0.441%.

What is the average home price in Williamson?

The median owner-occupied home value in Williamson, Arizona is $703,000, against $392,900 across Yavapai County.

Is it cheaper to rent or buy in Williamson?

Median gross rent in Williamson is $919 a month, against $4,817 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 Williamson — US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
  • Homeowners insurance — NAIC average premium for Arizona.
  • 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