Cost to Own
United StatesNew JerseyUnion CountyPlainfield Population 54,515 Data vintage ACS 2023 5-Year Rates updated 2026-07-30

Total monthly cost of ownership

Cost to Own a Home in Plainfield, New Jersey

A $383,000 home here costs

$3,492

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

A standard mortgage calculator would have told you $1,969. The real number is $1,523 higher every month — 77% more than the payment most buyers budget for.

Plainfield median: $383,300
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, $306,400 borrowed $1,969
Property tax2.609% effective rate for Plainfield itself $833
Homeowners insuranceNew Jersey averages $1,309/yr (NAIC), or 0.294% of home value $94
Electricity23.27¢/kWh — New Jersey residential average, EIA $209
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $319
Total monthly $3,492

Plainfield against Union County and New Jersey

MeasurePlainfieldUnion County
Median home value$383,300$488,800
Median property tax$10,001$10,001
Effective tax rate2.609%2.046%
Median gross rent$1,673$1,664
Population54,515572,549

The weather behind that power bill

Plainfield sits in Union County, which averages a high of 85.9°F in its hottest month and a low of 25.1°F in its coldest, with 50.39" of precipitation a year and 28% of it in a single three-month stretch. That climate drives 1,123 cooling and 4,856 heating degree days, which is what sets the $209 electricity line above.

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

Other cities in Union County

Full Union County cost breakdown · Every county in New Jersey

Common questions

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

A $383,000 home in Plainfield, New Jersey costs approximately $3,492 per month with 20% down at 6.66%. That is $1,969 principal and interest, $833 property tax, $94 homeowners insurance, $277 utilities and $319 set aside for maintenance.

What is the property tax rate in Plainfield?

Plainfield has an effective property tax rate of 2.609%, based on a median home value of $383,300 and median real estate taxes of $10,001. That is higher than the Union County average of 2.046%.

What is the average home price in Plainfield?

The median owner-occupied home value in Plainfield, New Jersey is $383,300, against $488,800 across Union County.

Is it cheaper to rent or buy in Plainfield?

Median gross rent in Plainfield is $1,673 a month, against $3,492 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 Plainfield — 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