Cost to Own
United StatesNew YorkJefferson CountyWatertown Population 24,574 Data vintage ACS 2023 5-Year Rates updated 2026-07-30

Total monthly cost of ownership

Cost to Own a Home in Watertown, New York

A $150,000 home here costs

$1,489

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

A standard mortgage calculator would have told you $771. The real number is $718 higher every month — 93% more than the payment most buyers budget for.

Watertown median: $149,800
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, $120,000 borrowed $771
Property tax1.786% effective rate for Watertown itself $223
Homeowners insuranceNew York averages $1,455/yr (NAIC), or 0.264% of home value $33
Electricity29.93¢/kWh — New York residential average, EIA $269
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $125
Total monthly $1,489

Watertown against Jefferson County and New York

MeasureWatertownJefferson County
Median home value$149,800$181,000
Median property tax$2,675$2,851
Effective tax rate1.786%1.575%
Median gross rent$933$1,214
Population24,574116,130

The weather behind that power bill

Watertown sits in Jefferson County, which averages a high of 79.2°F in its hottest month and a low of 10.0°F in its coldest, with 37.07" of precipitation a year and 30% of it in a single three-month stretch. That climate drives 386 cooling and 7,524 heating degree days, which is what sets the $269 electricity line above.

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

Other cities in Jefferson County

Full Jefferson County cost breakdown · Every county in New York

Common questions

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

A $150,000 home in Watertown, New York costs approximately $1,489 per month with 20% down at 6.66%. That is $771 principal and interest, $223 property tax, $33 homeowners insurance, $337 utilities and $125 set aside for maintenance.

What is the property tax rate in Watertown?

Watertown has an effective property tax rate of 1.786%, based on a median home value of $149,800 and median real estate taxes of $2,675. That is higher than the Jefferson County average of 1.575%.

What is the average home price in Watertown?

The median owner-occupied home value in Watertown, New York is $149,800, against $181,000 across Jefferson County.

Is it cheaper to rent or buy in Watertown?

Median gross rent in Watertown is $933 a month, against $1,489 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 Watertown — 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