Cost to Own
United StatesNew JerseyCape May CountyErma Population 2,039 Data vintage ACS 2023 5-Year Rates updated 2026-07-30

Total monthly cost of ownership

Cost to Own a Home in Erma, New Jersey

A $378,000 home here costs

$3,012

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

A standard mortgage calculator would have told you $1,943. The real number is $1,068 higher every month — 55% more than the payment most buyers budget for.

Erma median: $378,000
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, $302,400 borrowed $1,943
Property tax1.218% effective rate for Erma itself $384
Homeowners insuranceNew Jersey averages $1,309/yr (NAIC), or 0.294% of home value $93
Electricity23.27¢/kWh — New Jersey residential average, EIA $209
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $315
Total monthly $3,012

Erma against Cape May County and New Jersey

MeasureErmaCape May County
Median home value$378,000$395,000
Median property tax$4,603$5,233
Effective tax rate1.218%1.325%
Median gross rent$1,576$1,345
Population2,03995,236

The weather behind that power bill

Erma sits in Cape May County, which averages a high of 85.5°F in its hottest month and a low of 28.5°F in its coldest, with 43.84" of precipitation a year and 27% of it in a single three-month stretch. That climate drives 1,176 cooling and 4,332 heating degree days, which is what sets the $209 electricity line above.

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

Other cities in Cape May County

Full Cape May County cost breakdown · Every county in New Jersey

Common questions

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

A $378,000 home in Erma, New Jersey costs approximately $3,012 per month with 20% down at 6.66%. That is $1,943 principal and interest, $384 property tax, $93 homeowners insurance, $277 utilities and $315 set aside for maintenance.

What is the property tax rate in Erma?

Erma has an effective property tax rate of 1.218%, based on a median home value of $378,000 and median real estate taxes of $4,603. That is lower than the Cape May County average of 1.325%.

What is the average home price in Erma?

The median owner-occupied home value in Erma, New Jersey is $378,000, against $395,000 across Cape May County.

Is it cheaper to rent or buy in Erma?

Median gross rent in Erma is $1,576 a month, against $3,012 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 Erma — US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
  • Homeowners insurance — NAIC average premium for New Jersey.
  • 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