Cost to Own
United StatesCaliforniaNapa CountyAngwin Population 2,774 Data vintage ACS 2023 5-Year Rates updated 2026-07-30

Total monthly cost of ownership

Cost to Own a Home in Angwin, California

A $690,000 home here costs

$5,057

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

A standard mortgage calculator would have told you $3,547. The real number is $1,509 higher every month — 43% more than the payment most buyers budget for.

Angwin median: $690,400
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, $552,000 borrowed $3,547
Property tax0.801% effective rate for Angwin itself $461
Homeowners insuranceCalifornia averages $1,403/yr (NAIC), or 0.186% of home value $107
Electricity33.25¢/kWh — California residential average, EIA $299
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $575
Total monthly $5,057

Angwin against Napa County and California

MeasureAngwinNapa County
Median home value$690,400$838,800
Median property tax$5,532$5,840
Effective tax rate0.801%0.696%
Median gross rent$1,556$2,141
Population2,774136,070

The weather behind that power bill

Angwin sits in Napa County, which averages a high of 84.6°F in its hottest month and a low of 38.8°F in its coldest, with 39.71" of precipitation a year and 60% of it in a single three-month stretch. That climate drives 604 cooling and 3,375 heating degree days, which is what sets the $299 electricity line above.

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

Other cities in Napa County

Full Napa County cost breakdown · Every county in California

Common questions

How much does it cost to own a home in Angwin?

A $690,000 home in Angwin, California costs approximately $5,057 per month with 20% down at 6.66%. That is $3,547 principal and interest, $461 property tax, $107 homeowners insurance, $367 utilities and $575 set aside for maintenance.

What is the property tax rate in Angwin?

Angwin has an effective property tax rate of 0.801%, based on a median home value of $690,400 and median real estate taxes of $5,532. That is higher than the Napa County average of 0.696%.

What is the average home price in Angwin?

The median owner-occupied home value in Angwin, California is $690,400, against $838,800 across Napa County.

Is it cheaper to rent or buy in Angwin?

Median gross rent in Angwin is $1,556 a month, against $5,057 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 Angwin — 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