Cost to Own
United StatesCaliforniaSanta Cruz CountyRio del Mar Population 8,938 Data vintage ACS 2023 5-Year Rates updated 2026-07-30

Total monthly cost of ownership

Cost to Own a Home in Rio del Mar, California

A $1,243,000 home here costs

$8,644

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

A standard mortgage calculator would have told you $6,390. The real number is $2,254 higher every month — 35% more than the payment most buyers budget for.

Rio del Mar median: $1,242,600
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, $994,400 borrowed $6,390
Property tax0.636% effective rate for Rio del Mar itself $659
Homeowners insuranceCalifornia averages $1,403/yr (NAIC), or 0.186% of home value $193
Electricity33.25¢/kWh — California residential average, EIA $299
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $1,036
Total monthly $8,644

Rio del Mar against Santa Cruz County and California

MeasureRio del MarSanta Cruz County
Median home value$1,242,600$1,015,200
Median property tax$7,898$6,305
Effective tax rate0.636%0.621%
Median gross rent$3,172$2,172
Population8,938266,021

The weather behind that power bill

Rio del Mar sits in Santa Cruz County, which averages a high of 76.7°F in its hottest month and a low of 40.9°F in its coldest, with 30.63" of precipitation a year and 60% of it in a single three-month stretch. That climate drives 180 cooling and 2,487 heating degree days, which is what sets the $299 electricity line above.

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

Other cities in Santa Cruz County

Full Santa Cruz County cost breakdown · Every county in California

Common questions

How much does it cost to own a home in Rio del Mar?

A $1,243,000 home in Rio del Mar, California costs approximately $8,644 per month with 20% down at 6.66%. That is $6,390 principal and interest, $659 property tax, $193 homeowners insurance, $367 utilities and $1,036 set aside for maintenance.

What is the property tax rate in Rio del Mar?

Rio del Mar has an effective property tax rate of 0.636%, based on a median home value of $1,242,600 and median real estate taxes of $7,898. That is higher than the Santa Cruz County average of 0.621%.

What is the average home price in Rio del Mar?

The median owner-occupied home value in Rio del Mar, California is $1,242,600, against $1,015,200 across Santa Cruz County.

Is it cheaper to rent or buy in Rio del Mar?

Median gross rent in Rio del Mar is $3,172 a month, against $8,644 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 Rio del Mar — 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