Total monthly cost of ownership
Cost to Own a Home in Dover, New Hampshire
A $399,000 home here costs
$3,468per month, all in — with 20% down at today's 6.66% 30-year fixed rate.
A standard mortgage calculator would have told you $2,051. The real number is $1,417 higher every month — 69% 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.
Dover against Strafford County and New Hampshire
| Measure | Dover | Strafford County |
|---|---|---|
| Median home value | $398,500 | $332,400 |
| Median property tax | $8,051 | $6,582 |
| Effective tax rate | 2.020% | 1.980% |
| Median gross rent | $1,540 | $1,413 |
| Population | 33,070 | 131,743 |
The weather behind that power bill
Dover sits in Strafford County, which averages a high of 81.9°F in its hottest month and a low of 15.4°F in its coldest, with 41.22" of precipitation a year and 28% of it in a single three-month stretch. That climate drives 506 cooling and 6,790 heating degree days, which is what sets the $246 electricity line above.
See the full climate breakdown for Strafford County — month by month temperatures, rainy season timing, snowfall and heating and cooling costs.
Other cities in Strafford County
Full Strafford County cost breakdown · Every county in New Hampshire
Common questions
How much does it cost to own a home in Dover?
A $399,000 home in Dover, New Hampshire costs approximately $3,468 per month with 20% down at 6.66%. That is $2,051 principal and interest, $672 property tax, $99 homeowners insurance, $314 utilities and $333 set aside for maintenance.
What is the property tax rate in Dover?
Dover has an effective property tax rate of 2.020%, based on a median home value of $398,500 and median real estate taxes of $8,051. That is higher than the Strafford County average of 1.980%.
What is the average home price in Dover?
The median owner-occupied home value in Dover, New Hampshire is $398,500, against $332,400 across Strafford County.
Is it cheaper to rent or buy in Dover?
Median gross rent in Dover is $1,540 a month, against $3,468 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 Dover — US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
- Homeowners insurance — NAIC average premium for New Hampshire.
- 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.