Trenton, Mercer County, New Jersey Property Taxes
Property Taxes in Trenton, New Jersey
Median Trenton, New Jersey effective property tax rate: 3.30%, significantly higher than the national median of 1.02%, and higher than the New Jersey state median of 2.88%.
Median Trenton, New Jersey home value: $141,800
Median annual Trenton, New Jersey tax bill: $5,177, higher than the national median property tax bill of $2,400.
How are property taxes in Mercer calculated?
Property taxes in Trenton, New Jersey are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.
Understanding Trenton's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Trenton, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Trenton, Mercer County, New Jersey Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
3.3%
Estimate Property Tax Bill
$4,679
$4,342
How Does the Trenton Property Tax Calculator Work?
Use this Trenton property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Trenton's median effective tax rate of 3.30% — based on actual property records in Mercer County — to generate your estimate.
Enter your property's estimated assessed value — the figure the local appraisal district uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Trenton's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.
Your bill may vary by ZIP code within Trenton: rates range from $2,305.00 in 08638 to $8,175.00 in 08690, primarily due to differences in school district levies and local assessment districts.
For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Trenton.
About Trenton Property Taxes
About Property Taxes in Trenton, Mercer, New Jersey
Trenton’s median effective property tax rate of 3.30% is higher than the New Jersey state median of 2.88% and higher than the national median of 1.02%. This rate reflects the Mercer County base levy combined with local school district levies and special assessment districts that vary by subdivision throughout the city.
Property tax rates are not uniform across Trenton. Homeowners in the 08608 ZIP code carry a median effective rate of 5.57%, while those in 08619 pay 3.30%. This spread — 2.27 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across Mercer County. Understanding which part of Trenton you live in can make a meaningful difference to your annual tax bill.
Trenton homeowners who believe their assessed value is too high can file a formal appeal with the Tax Assessor before the April 1, 2026 deadline each year.
If your estimated bill above seems higher than expected, Ownwell can review your assessment and protest on your behalf. You only pay if we save you money.
Property Tax Rates Across Trenton, Mercer County, New Jersey
As noted earlier, local government entities set tax rates, which can vary widely within a state.
Why? Because annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate.
While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.
Below, you can compare Trenton's effective property tax rate to other cities in New Jersey and the median property tax rates in New Jersey and the U.S.
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Trenton Tax Rate
3.30%
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Mercer County Tax Rate
3.30%
Median Effective New Jersey Tax Rate
2.88%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Trenton, Mercer County, New Jersey
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 08608 | 1.36% | 5.57% | 5.57% | 5.57% | 5.57% |
| 08609 | 3.30% | 3.30% | 5.57% | 5.57% | 5.57% |
| 08610 | 3.30% | 3.30% | 3.30% | 3.30% | 5.57% |
| 08611 | 5.57% | 5.57% | 5.57% | 5.57% | 5.57% |
| 08618 | 5.57% | 5.57% | 5.57% | 5.57% | 5.57% |
| 08619 | 3.30% | 3.30% | 3.30% | 3.30% | 3.30% |
| 08620 | 3.30% | 3.30% | 3.30% | 3.30% | 3.30% |
| 08629 | 3.30% | 3.30% | 5.57% | 5.57% | 5.57% |
| 08638 | 5.57% | 5.57% | 5.57% | 5.57% | 5.57% |
| 08690 | 3.30% | 3.30% | 3.30% | 3.30% | 3.30% |
| 08628 | N/A | N/A | N/A | N/A | N/A |
| 08691 | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Assessment Values Across Trenton, Mercer County, New Jersey
When examining property taxes in Trenton, New Jersey, understanding the distinction between "market value" and "assessed value" is crucial.
The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Mercer County tax assessor estimates the market value for tax purposes.
The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.
Assessment notices:
In Mercer County, assessment notices are sent in January each year. They'll typically reach your mailbox by the middle of January.
Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. For example, the median home price in Trenton is $141,800, with tax bills ranging significantly across the county. 08690 has the highest median home price at $248,300.
Trenton’s median property tax bill is $5,177, well above the national median property tax bill of $2,400, and the county’s tax bills vary from $2,305 in 08638 to $8,175 in 08690.
Property Tax Assessment Values Across Trenton, Mercer County, New Jersey
Source: Ownwell
$42,100
$567,900
$1,093,700
Median Trenton Market Value
$141,800
Median Mercer County Market Value
$217,000
Median New Jersey Market Value
$288,200
Median United States Market Value
$235,294
Property Tax Assessment Values Across Trenton, Mercer County, New Jersey
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 08608 | $39,150 | $65,225 | $81,000 | $106,325 | $120,100 |
| 08609 | $28,100 | $35,800 | $54,100 | $82,000 | $124,100 |
| 08610 | $67,300 | $121,000 | $161,100 | $201,600 | $241,500 |
| 08611 | $35,300 | $42,300 | $51,700 | $66,500 | $101,000 |
| 08618 | $36,500 | $48,400 | $64,700 | $104,775 | $169,490 |
| 08619 | $140,800 | $176,300 | $215,900 | $266,900 | $315,900 |
| 08620 | $181,270 | $202,200 | $227,150 | $273,200 | $382,910 |
| 08629 | $44,600 | $57,500 | $81,500 | $116,100 | $148,230 |
| 08638 | $23,600 | $28,450 | $42,100 | $61,000 | $89,900 |
| 08690 | $193,700 | $213,800 | $248,300 | $315,375 | $371,900 |
| 08628 | N/A | N/A | N/A | N/A | N/A |
| 08691 | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Bills Across Trenton, Mercer County, New Jersey
Property tax bills in Trenton are based on the assessed value of a home, which is compared with the local tax rate to determine what a homeowner owes. When a property’s assessed value rises, the tax bill can increase as well, especially if local rates stay the same. For many homeowners, the bill reflects both the market value of the home and the tax burden set by local governments.
In Trenton, the median home price is $141,800, and property tax bills vary widely across the city. The 25th percentile tax bill is $3,134, while the 75th percentile reaches $7,419. At the high end, the 90th percentile tax bill is $9,536, showing how much taxes can differ from one property to another. The lowest median tax bill is $2,305 in ZIP code 08638, while the highest median tax bill is $8,175 in ZIP code 08690. For homeowners, these differences can have a major impact on monthly housing costs and long-term affordability.
Median Trenton Tax Bill
$5,177
Median Mercer County Tax Bill
$7,344
Median New Jersey Tax Bill
$8,638
Median United States Tax Bill
$2,400
Property Tax Bills Across Trenton, Mercer County, New Jersey
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 08608 | $1,113 | $2,483 | $4,287 | $5,116 | $6,628 |
| 08609 | $1,542 | $1,865 | $2,605 | $3,812 | $5,083 |
| 08610 | $3,230 | $4,231 | $5,364 | $6,659 | $7,954 |
| 08611 | $1,960 | $2,338 | $2,850 | $3,641 | $5,289 |
| 08618 | $2,022 | $2,694 | $3,574 | $5,570 | $8,029 |
| 08619 | $4,628 | $5,790 | $7,105 | $8,796 | $10,408 |
| 08620 | $5,962 | $6,665 | $7,475 | $8,952 | $12,548 |
| 08629 | $2,449 | $3,023 | $3,785 | $4,730 | $5,701 |
| 08638 | $1,303 | $1,575 | $2,305 | $3,287 | $4,827 |
| 08690 | $6,388 | $7,042 | $8,175 | $10,345 | $12,251 |
| 08628 | N/A | N/A | N/A | N/A | N/A |
| 08691 | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | April 1 |
Links | |
|---|---|
| Mercer Tax Assessor | |
| Website | pip.mercercounty.org |