Total monthly cost of ownership
Cost to Own a Home in Princeton Junction, New Jersey
A $669,000 home here costs
$5,271per month, all in — with 20% down at today's 6.66% 30-year fixed rate.
A standard mortgage calculator would have told you $3,439. The real number is $1,832 higher every month — 53% more than the payment most buyers budget for.
Where every dollar goes
Only the first line is a mortgage payment. Change any assumption above and every figure below recalculates.
Princeton Junction against Mercer County and New Jersey
| Measure | Princeton Junction | Mercer County |
|---|---|---|
| Median home value | $669,100 | $351,000 |
| Median property tax | $10,001 | $8,804 |
| Effective tax rate | 1.495% | 2.508% |
| Median gross rent | — | $1,515 |
| Population | 1,842 | 383,286 |
The weather behind that power bill
Princeton Junction sits in Mercer County, which averages a high of 86.0°F in its hottest month and a low of 24.3°F in its coldest, with 45.63" of precipitation a year and 28% of it in a single three-month stretch. That climate drives 1,050 cooling and 4,977 heating degree days, which is what sets the $209 electricity line above.
See the full climate breakdown for Mercer County — month by month temperatures, rainy season timing, snowfall and heating and cooling costs.
Other cities in Mercer County
Full Mercer County cost breakdown · Every county in New Jersey
Common questions
How much does it cost to own a home in Princeton Junction?
A $669,000 home in Princeton Junction, New Jersey costs approximately $5,271 per month with 20% down at 6.66%. That is $3,439 principal and interest, $833 property tax, $164 homeowners insurance, $277 utilities and $558 set aside for maintenance.
What is the property tax rate in Princeton Junction?
Princeton Junction has an effective property tax rate of 1.495%, based on a median home value of $669,100 and median real estate taxes of $10,001. That is lower than the Mercer County average of 2.508%.
What is the average home price in Princeton Junction?
The median owner-occupied home value in Princeton Junction, New Jersey is $669,100, against $351,000 across Mercer County.
Is it cheaper to rent or buy in Princeton Junction?
Rent data is not published for Princeton Junction at this level of detail.
Sources & methodology
- Median home value, real estate taxes, gross rent and population for Princeton Junction — 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.