Cost to Own
United StatesCaliforniaSan Diego County FIPS 06073 Data vintage ACS 2023 5-Year Rates updated 2026-07-30

Total monthly cost of ownership

Cost to Own a Home in San Diego County, California

A $792,000 home here costs

$5,957

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

A standard mortgage calculator would have told you $4,072. The real number is $1,885 higher every month — 46% more than the payment most buyers budget for.

County median: $791,600
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, $633,600 borrowed $4,072
Property tax0.700% effective rate — San Diego County assessor via Census ACS $462
Homeowners insuranceEstimated at 0.60% of home value per year $396
Electricity33.25¢/kWh — California residential average, EIA $299
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year — the cost nobody budgets $660
Total monthly $5,957

How San Diego County compares

San Diego County ranks 1,982nd of 3,133 US counties by effective property tax rate, meaning property taxes here are lower than in 1,151 counties and higher than in 1,981. Within California it ranks 34th of 58.

San Diego County 0.700% 16% lower than national
California average 0.714%
National median0.837%
Highest in America — Menominee County, WI3.636%

The numbers behind this page

MeasureSan Diego CountySource
Median home value$791,600ACS B25077
Median real estate taxes paid$5,542ACS B25103
Effective property tax rate0.700%Derived
Median gross rent$2,154ACS B25064
Occupied housing units1,159,822ACS B25003
Population3,282,782ACS B01003
Residential electricity price33.25¢/kWhEIA 5.6.A
30-year fixed mortgage rate6.66%Freddie Mac PMMS

Other counties in California

Compare the cost of the same home elsewhere in the state.

All 58 counties in California

Questions about owning here

What is the property tax rate in San Diego County?

The effective property tax rate in San Diego County, California is 0.700% of home value per year. On the county's median home value of $791,600, that works out to about $5,542 annually, or $462 per month.

How much does it cost to own a home in San Diego County?

A $792,000 home in San Diego County, California costs approximately $5,957 per month with 20% down at 6.66%. That breaks down as $4,072 principal and interest, $462 property tax, $396 insurance, $367 utilities and $660 set aside for maintenance.

Why is this higher than the payment my lender quoted?

Lender quotes usually show principal and interest only, and sometimes property tax and insurance. They almost never include electricity, water or a maintenance reserve. Here those add about $1,027 a month, which is why the real cost is 46% above the mortgage payment alone.

Is it cheaper to rent in San Diego County?

Median gross rent in San Diego County, California is $2,154 per month, compared with $5,957 to own the median home outright. Renting is cheaper month to month, though rent does not build equity and is not fixed for 30 years.

How much is the electric bill in San Diego County?

California residential electricity averages 33.25¢ per kWh. At the US average household usage of 899 kWh per month, that is about $299. Actual bills vary considerably with house size, insulation and climate.

Sources & methodology

  • Median home value, real estate taxes paid, gross rent, occupied units and population — US Census Bureau, American Community Survey ACS 2023 5-Year, tables B25077, B25103, B25064, B25003, B01003.
  • Effective property tax rate — median real estate taxes paid divided by median home value.
  • Mortgage rate — Freddie Mac PMMS, updated weekly.
  • Residential electricity price — US Energy Information Administration, Electric Power Monthly, Table 5.6.A.
  • Homeowners insurance (0.60%/yr), maintenance (1%/yr) and water and sewer ($68/mo) are modelled national estimates, not quoted figures. Every one is editable above.

Full methodology