Total monthly cost of ownership
Cost to Own a Home in Onset, Massachusetts
A $416,000 home here costs
$3,217per month, all in — with 20% down at today's 6.66% 30-year fixed rate.
A standard mortgage calculator would have told you $2,139. The real number is $1,079 higher every month — 50% 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.
Onset against Plymouth County and Massachusetts
| Measure | Onset | Plymouth County |
|---|---|---|
| Median home value | $415,500 | $513,000 |
| Median property tax | $3,563 | $6,345 |
| Effective tax rate | 0.858% | 1.237% |
| Median gross rent | — | $1,655 |
| Population | 1,561 | 531,889 |
The weather behind that power bill
Onset sits in Plymouth County, which averages a high of 84.0°F in its hottest month and a low of 21.8°F in its coldest, with 52.77" of precipitation a year and 28% of it in a single three-month stretch. That climate drives 805 cooling and 5,309 heating degree days, which is what sets the $259 electricity line above.
See the full climate breakdown for Plymouth County — month by month temperatures, rainy season timing, snowfall and heating and cooling costs.
Other cities in Plymouth County
Full Plymouth County cost breakdown · Every county in Massachusetts
Common questions
How much does it cost to own a home in Onset?
A $416,000 home in Onset, Massachusetts costs approximately $3,217 per month with 20% down at 6.66%. That is $2,139 principal and interest, $297 property tax, $107 homeowners insurance, $327 utilities and $347 set aside for maintenance.
What is the property tax rate in Onset?
Onset has an effective property tax rate of 0.858%, based on a median home value of $415,500 and median real estate taxes of $3,563. That is lower than the Plymouth County average of 1.237%.
What is the average home price in Onset?
The median owner-occupied home value in Onset, Massachusetts is $415,500, against $513,000 across Plymouth County.
Is it cheaper to rent or buy in Onset?
Rent data is not published for Onset at this level of detail.
Sources & methodology
- Median home value, real estate taxes, gross rent and population for Onset — US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
- Homeowners insurance — NAIC average premium for Massachusetts.
- 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.