Total monthly cost of ownership
Cost to Own a Home in Hamilton Square, New Jersey
A $377,000 home here costs
$3,373per month, all in — with 20% down at today's 6.66% 30-year fixed rate.
A standard mortgage calculator would have told you $1,938. The real number is $1,435 higher every month — 74% 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.
Hamilton Square against Mercer County and New Jersey
| Measure | Hamilton Square | Mercer County |
|---|---|---|
| Median home value | $376,900 | $351,000 |
| Median property tax | $9,012 | $8,804 |
| Effective tax rate | 2.391% | 2.508% |
| Median gross rent | $1,817 | $1,515 |
| Population | 11,643 | 383,286 |
The weather behind that power bill
Hamilton Square 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 Hamilton Square?
A $377,000 home in Hamilton Square, New Jersey costs approximately $3,373 per month with 20% down at 6.66%. That is $1,938 principal and interest, $751 property tax, $92 homeowners insurance, $277 utilities and $314 set aside for maintenance.
What is the property tax rate in Hamilton Square?
Hamilton Square has an effective property tax rate of 2.391%, based on a median home value of $376,900 and median real estate taxes of $9,012. That is lower than the Mercer County average of 2.508%.
What is the average home price in Hamilton Square?
The median owner-occupied home value in Hamilton Square, New Jersey is $376,900, against $351,000 across Mercer County.
Is it cheaper to rent or buy in Hamilton Square?
Median gross rent in Hamilton Square is $1,817 a month, against $3,373 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 Hamilton Square — 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.