Cost to Own
United StatesMassachusettsBarnstable CountyDennis Port Population 3,439 Data vintage ACS 2023 5-Year Rates updated 2026-07-30

Total monthly cost of ownership

Cost to Own a Home in Dennis Port, Massachusetts

A $451,000 home here costs

$3,304

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

A standard mortgage calculator would have told you $2,319. The real number is $985 higher every month — 42% more than the payment most buyers budget for.

Dennis Port median: $450,500
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, $360,800 borrowed $2,319
Property tax0.441% effective rate for Dennis Port itself $166
Homeowners insuranceMassachusetts averages $1,712/yr (NAIC), or 0.31% of home value $117
Electricity28.82¢/kWh — Massachusetts residential average, EIA $259
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $376
Total monthly $3,304

Dennis Port against Barnstable County and Massachusetts

MeasureDennis PortBarnstable County
Median home value$450,500$575,900
Median property tax$1,988$4,090
Effective tax rate0.441%0.710%
Median gross rent$1,524$1,596
Population3,439230,073

The weather behind that power bill

Dennis Port sits in Barnstable County, which averages a high of 80.8°F in its hottest month and a low of 24.1°F in its coldest, with 44.7" of precipitation a year and 29% of it in a single three-month stretch. That climate drives 632 cooling and 5,518 heating degree days, which is what sets the $259 electricity line above.

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

Other cities in Barnstable County

Full Barnstable County cost breakdown · Every county in Massachusetts

Common questions

How much does it cost to own a home in Dennis Port?

A $451,000 home in Dennis Port, Massachusetts costs approximately $3,304 per month with 20% down at 6.66%. That is $2,319 principal and interest, $166 property tax, $117 homeowners insurance, $327 utilities and $376 set aside for maintenance.

What is the property tax rate in Dennis Port?

Dennis Port has an effective property tax rate of 0.441%, based on a median home value of $450,500 and median real estate taxes of $1,988. That is lower than the Barnstable County average of 0.710%.

What is the average home price in Dennis Port?

The median owner-occupied home value in Dennis Port, Massachusetts is $450,500, against $575,900 across Barnstable County.

Is it cheaper to rent or buy in Dennis Port?

Median gross rent in Dennis Port is $1,524 a month, against $3,304 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 Dennis Port — 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.

Full methodology