Cost to Own
United StatesNew YorkSuffolk CountyGreenlawn Population 14,986 Data vintage ACS 2023 5-Year Rates updated 2026-07-30

Total monthly cost of ownership

Cost to Own a Home in Greenlawn, New York

A $627,000 home here costs

$5,055

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

A standard mortgage calculator would have told you $3,223. The real number is $1,831 higher every month — 57% more than the payment most buyers budget for.

Greenlawn median: $626,700
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, $501,600 borrowed $3,223
Property tax1.596% effective rate for Greenlawn itself $834
Homeowners insuranceNew York averages $1,455/yr (NAIC), or 0.264% of home value $138
Electricity29.93¢/kWh — New York residential average, EIA $269
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $523
Total monthly $5,055

Greenlawn against Suffolk County and New York

MeasureGreenlawnSuffolk County
Median home value$626,700$539,500
Median property tax$10,001$10,001
Effective tax rate1.596%1.854%
Median gross rent$2,190
Population14,9861,525,680

The weather behind that power bill

Greenlawn sits in Suffolk County, which averages a high of 83.9°F in its hottest month and a low of 26.0°F in its coldest, with 47.22" of precipitation a year and 27% of it in a single three-month stretch. That climate drives 945 cooling and 4,906 heating degree days, which is what sets the $269 electricity line above.

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

Other cities in Suffolk County

Full Suffolk County cost breakdown · Every county in New York

Common questions

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

A $627,000 home in Greenlawn, New York costs approximately $5,055 per month with 20% down at 6.66%. That is $3,223 principal and interest, $834 property tax, $138 homeowners insurance, $337 utilities and $523 set aside for maintenance.

What is the property tax rate in Greenlawn?

Greenlawn has an effective property tax rate of 1.596%, based on a median home value of $626,700 and median real estate taxes of $10,001. That is lower than the Suffolk County average of 1.854%.

What is the average home price in Greenlawn?

The median owner-occupied home value in Greenlawn, New York is $626,700, against $539,500 across Suffolk County.

Is it cheaper to rent or buy in Greenlawn?

Rent data is not published for Greenlawn at this level of detail.

Sources & methodology

  • Median home value, real estate taxes, gross rent and population for Greenlawn — US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
  • Homeowners insurance — NAIC average premium for New York.
  • 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