Total monthly cost of ownership
Cost to Own a Home in Waianae, Hawaii
A $487,000 home here costs
$3,596per month, all in — with 20% down at today's 6.66% 30-year fixed rate.
A standard mortgage calculator would have told you $2,504. The real number is $1,092 higher every month — 44% 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.
Waianae against Honolulu County and Hawaii
| Measure | Waianae | Honolulu County |
|---|---|---|
| Median home value | $487,200 | $873,000 |
| Median property tax | $1,027 | $2,482 |
| Effective tax rate | 0.211% | 0.284% |
| Median gross rent | $1,307 | $2,054 |
| Population | 12,907 | 1,003,666 |
The weather behind that power bill
Waianae sits in Honolulu County, which averages a high of 85.6°F in its hottest month and a low of 64.4°F in its coldest, with 21.78" of precipitation a year and 41% of it in a single three-month stretch. That climate drives 3,609 cooling and 0 heating degree days, which is what sets the $467 electricity line above.
See the full climate breakdown for Honolulu County — month by month temperatures, rainy season timing, snowfall and heating and cooling costs.
Other cities in Honolulu County
Full Honolulu County cost breakdown · Every county in Hawaii
Common questions
How much does it cost to own a home in Waianae?
A $487,000 home in Waianae, Hawaii costs approximately $3,596 per month with 20% down at 6.66%. That is $2,504 principal and interest, $86 property tax, $65 homeowners insurance, $535 utilities and $406 set aside for maintenance.
What is the property tax rate in Waianae?
Waianae has an effective property tax rate of 0.211%, based on a median home value of $487,200 and median real estate taxes of $1,027. That is lower than the Honolulu County average of 0.284%.
What is the average home price in Waianae?
The median owner-occupied home value in Waianae, Hawaii is $487,200, against $873,000 across Honolulu County.
Is it cheaper to rent or buy in Waianae?
Median gross rent in Waianae is $1,307 a month, against $3,596 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 Waianae — US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
- Homeowners insurance — NAIC average premium for Hawaii.
- 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.