Cost to Own
United StatesCaliforniaColusa CountyWilliams Population 5,569 Data vintage ACS 2023 5-Year Rates updated 2026-07-30

Total monthly cost of ownership

Cost to Own a Home in Williams, California

A $340,000 home here costs

$2,674

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

A standard mortgage calculator would have told you $1,748. The real number is $926 higher every month — 53% more than the payment most buyers budget for.

Williams median: $339,900
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, $272,000 borrowed $1,748
Property tax0.788% effective rate for Williams itself $223
Homeowners insuranceCalifornia averages $1,403/yr (NAIC), or 0.186% of home value $53
Electricity33.25¢/kWh — California residential average, EIA $299
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $283
Total monthly $2,674

Williams against Colusa County and California

MeasureWilliamsColusa County
Median home value$339,900$375,100
Median property tax$2,680$2,481
Effective tax rate0.788%0.661%
Median gross rent$1,296$1,139
Population5,56921,895

The weather behind that power bill

Williams sits in Colusa County, which averages a high of 92.4°F in its hottest month and a low of 37.7°F in its coldest, with 17.19" of precipitation a year and 57% of it in a single three-month stretch. That climate drives 1,329 cooling and 2,588 heating degree days, which is what sets the $299 electricity line above.

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

Other cities in Colusa County

Full Colusa County cost breakdown · Every county in California

Common questions

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

A $340,000 home in Williams, California costs approximately $2,674 per month with 20% down at 6.66%. That is $1,748 principal and interest, $223 property tax, $53 homeowners insurance, $367 utilities and $283 set aside for maintenance.

What is the property tax rate in Williams?

Williams has an effective property tax rate of 0.788%, based on a median home value of $339,900 and median real estate taxes of $2,680. That is higher than the Colusa County average of 0.661%.

What is the average home price in Williams?

The median owner-occupied home value in Williams, California is $339,900, against $375,100 across Colusa County.

Is it cheaper to rent or buy in Williams?

Median gross rent in Williams is $1,296 a month, against $2,674 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 Williams — US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
  • Homeowners insurance — NAIC average premium for California.
  • 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