Cost to Own
United StatesNew MexicoDoña Ana CountySan Ysidro Population 2,179 Data vintage ACS 2023 5-Year Rates updated 2026-07-30

Total monthly cost of ownership

Cost to Own a Home in San Ysidro, New Mexico

A $307,000 home here costs

$2,331

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

A standard mortgage calculator would have told you $1,578. The real number is $753 higher every month — 48% more than the payment most buyers budget for.

San Ysidro median: $306,900
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, $245,600 borrowed $1,578
Property tax0.656% effective rate for San Ysidro itself $168
Homeowners insuranceNew Mexico averages $1,229/yr (NAIC), or 0.526% of home value $135
Electricity14.12¢/kWh — New Mexico residential average, EIA $127
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $256
Total monthly $2,331

San Ysidro against Doña Ana County and New Mexico

MeasureSan YsidroDoña Ana County
Median home value$306,900$205,400
Median property tax$2,013$1,404
Effective tax rate0.656%0.684%
Median gross rent$931$903
Population2,179221,665

The weather behind that power bill

San Ysidro sits in Doña Ana County, which averages a high of 96.2°F in its hottest month and a low of 29.6°F in its coldest, with 9.14" of precipitation a year and 54% of it in a single three-month stretch. That climate drives 2,059 cooling and 2,675 heating degree days, which is what sets the $127 electricity line above.

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

Other cities in Doña Ana County

Full Doña Ana County cost breakdown · Every county in New Mexico

Common questions

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

A $307,000 home in San Ysidro, New Mexico costs approximately $2,331 per month with 20% down at 6.66%. That is $1,578 principal and interest, $168 property tax, $135 homeowners insurance, $195 utilities and $256 set aside for maintenance.

What is the property tax rate in San Ysidro?

San Ysidro has an effective property tax rate of 0.656%, based on a median home value of $306,900 and median real estate taxes of $2,013. That is lower than the Doña Ana County average of 0.684%.

What is the average home price in San Ysidro?

The median owner-occupied home value in San Ysidro, New Mexico is $306,900, against $205,400 across Doña Ana County.

Is it cheaper to rent or buy in San Ysidro?

Median gross rent in San Ysidro is $931 a month, against $2,331 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 San Ysidro — US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
  • Homeowners insurance — NAIC average premium for New Mexico.
  • 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