Cost to Own
United States › California › Orange County › Rancho Santa Margarita Population 47,257 Data vintage ACS 2023 5-Year Rates updated 2026-10-29
Before you budget for Rancho Santa Margarita FEMA rates natural hazard risk in Orange County Very High, with earthquake its highest-ranked hazard against other US counties. It shapes what insurers charge here. See what threatens homes in this county

Total monthly cost of ownership

Cost to Own a Home in Rancho Santa Margarita, California

A $908,000 home here costs

$6,587

per month, all in, with 20% down at today's 7.24% 30-year fixed rate. By the 28% rule that takes a household income of about $282,500 a year.

P&I 75%Tax 8%Insurance 2%Utilities 3%Upkeep 11%

A standard mortgage calculator would have told you $4,950. The real number is $1,636 higher every month, 33% more than the payment most buyers budget for.

Compare Orange County with anywhere in America · full county breakdown

Rancho Santa Margarita median: $907,900
Under 20% adds PMI
Freddie Mac PMMS
CA 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, $726,400 borrowed $4,950
Property tax0.689% effective rate for Rancho Santa Margarita itself $521
Homeowners insuranceCalifornia averages $1,403/yr (NAIC), or 0.186% of home value $141
Electricity29.75ยข/kWh, California residential average, EIA $150
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $757
Total monthly $6,587

Rancho Santa Margarita against Orange County and California

MeasureRancho Santa MargaritaOrange County
Median home value$907,900$915,500
Median property tax$6,259$6,096
Effective tax rate0.689%0.666%
Median gross rent$2,481$2,352
Population47,2573,164,063

The weather behind that power bill

Rancho Santa Margarita sits in Orange County, which averages a high of 87.3°F in its hottest month and a low of 42.8°F in its coldest, with 14.12" of precipitation a year and 62% of it in a single three-month stretch. That climate drives 1,246 cooling and 1,287 heating degree days, which is what sets the $150 electricity line above.

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

Other cities in Orange County

Full Orange County cost breakdown · Every county in California

Talk to someone who works this market

These are Rancho Santa Margarita averages. What one specific house costs to own, or what it would sell for today, depends on the street and the condition of the place. We will connect you with one licensed local agent who works Rancho Santa Margarita every week. Free, no obligation, and we never sell your details to a list.

I'm looking to buy in Rancho Santa Margarita I already own here and may sell

Common questions

How much does it cost to own a home in Rancho Santa Margarita?

A $908,000 home in Rancho Santa Margarita, California costs approximately $6,587 per month with 20% down at 7.24%. That is $4,950 principal and interest, $521 property tax, $141 homeowners insurance, $218 utilities and $757 set aside for maintenance.

What is the property tax rate in Rancho Santa Margarita?

Rancho Santa Margarita has an effective property tax rate of 0.689%, based on a median home value of $907,900 and median real estate taxes of $6,259. That is higher than the Orange County average of 0.666%.

What is the average home price in Rancho Santa Margarita?

The median owner-occupied home value in Rancho Santa Margarita, California is $907,900, against $915,500 across Orange County.

Is it cheaper to rent or buy in Rancho Santa Margarita?

Median gross rent in Rancho Santa Margarita is $2,481 a month, against $6,587 to own the median home all in. Renting costs less month to month here, though renting builds no equity.

What salary do you need to buy a home in Rancho Santa Margarita?

Using the standard 28% rule, housing costs at no more than 28% of gross income, buying the median home in Rancho Santa Margarita, California at today's rate takes a household income of roughly $282,500 a year. That covers the full $6,587 monthly cost, not just the mortgage payment.

Sources & methodology

  • Median home value, real estate taxes, gross rent and population for Rancho Santa Margarita, 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