Total monthly cost of ownership
Cost to Own a Home in Rancho Santa Margarita, California
A $908,000 home here costs
$6,454per month, all in — with 20% down at today's 6.66% 30-year fixed rate.
A standard mortgage calculator would have told you $4,668. The real number is $1,786 higher every month — 38% more than the payment most buyers budget for.
Where every dollar goes
Only the first line is a mortgage payment. Change any assumption above and every figure below recalculates.
Rancho Santa Margarita against Orange County and California
| Measure | Rancho Santa Margarita | Orange County |
|---|---|---|
| Median home value | $907,900 | $915,500 |
| Median property tax | $6,259 | $6,096 |
| Effective tax rate | 0.689% | 0.666% |
| Median gross rent | $2,481 | $2,352 |
| Population | 47,257 | 3,164,063 |
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 $299 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
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 $6,454 per month with 20% down at 6.66%. That is $4,668 principal and interest, $521 property tax, $141 homeowners insurance, $367 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 $6,454 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 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.