Cost to Own
United StatesCaliforniaContra Costa CountyReliez Valley Population 3,006 Data vintage ACS 2023 5-Year Rates updated 2026-07-30

Total monthly cost of ownership

Cost to Own a Home in Reliez Valley, California

A $1,590,000 home here costs

$10,946

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

A standard mortgage calculator would have told you $8,174. The real number is $2,772 higher every month — 34% more than the payment most buyers budget for.

Reliez Valley median: $1,589,900
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, $1,272,000 borrowed $8,174
Property tax0.629% effective rate for Reliez Valley itself $833
Homeowners insuranceCalifornia averages $1,403/yr (NAIC), or 0.186% of home value $246
Electricity33.25¢/kWh — California residential average, EIA $299
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $1,325
Total monthly $10,946

Reliez Valley against Contra Costa County and California

MeasureReliez ValleyContra Costa County
Median home value$1,589,900$830,800
Median property tax$10,001$6,903
Effective tax rate0.629%0.831%
Median gross rent$3,501$2,322
Population3,0061,161,458

The weather behind that power bill

Reliez Valley sits in Contra Costa County, which averages a high of 82.8°F in its hottest month and a low of 41.3°F in its coldest, with 26.05" of precipitation a year and 58% of it in a single three-month stretch. That climate drives 926 cooling and 3,309 heating degree days, which is what sets the $299 electricity line above.

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

Other cities in Contra Costa County

Full Contra Costa County cost breakdown · Every county in California

Common questions

How much does it cost to own a home in Reliez Valley?

A $1,590,000 home in Reliez Valley, California costs approximately $10,946 per month with 20% down at 6.66%. That is $8,174 principal and interest, $833 property tax, $246 homeowners insurance, $367 utilities and $1,325 set aside for maintenance.

What is the property tax rate in Reliez Valley?

Reliez Valley has an effective property tax rate of 0.629%, based on a median home value of $1,589,900 and median real estate taxes of $10,001. That is lower than the Contra Costa County average of 0.831%.

What is the average home price in Reliez Valley?

The median owner-occupied home value in Reliez Valley, California is $1,589,900, against $830,800 across Contra Costa County.

Is it cheaper to rent or buy in Reliez Valley?

Median gross rent in Reliez Valley is $3,501 a month, against $10,946 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 Reliez Valley — 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