Warren County, New Jersey Property Taxes
Property Taxes in Warren County, New Jersey
Median Warren County effective property tax rate: 3.55%, significantly higher than the national median of 1.02%.
Median Warren County home value: $206,900
Median annual Warren County tax bill: $7,155, $4,755 higher than the national median property tax bill of $2,400.
How are property taxes in Warren County calculated?
Property taxes in Warren County 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.
Why are property taxes in Warren County so high? The county’s effective property tax rate of 3.55% is also higher than the New Jersey median rate of 2.88%, which helps explain why the typical tax bill is well above the national median.
What can lower a property tax bill in Warren County? Understanding your county's property tax system, exemptions, and reduction opportunities can lead to significant savings.
Whether you live in Warren or another part of Warren County, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Warren County, New Jersey Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
3.55%
Estimate Property Tax Bill
$7,345
$6,816
How Does the Warren County Property Tax Calculator Work?
Use this Warren County property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Warren County's median effective tax rate of 3.55% to generate your estimate.
Enter your property's estimated assessed value — the figure the appraisal district assigns for tax purposes, which is typically lower than market value after applicable exemptions. Our calculator uses the median effective rate for a more accurate estimate than the statutory millage rate alone.
Your actual bill may vary based on your specific exemptions, local school district levies, and any special assessment districts that apply to your property. Warren County's median tax rate is higher than New Jersey's 2.88% median rate, and the county's median property tax bill of $7,155 is $4,755 higher than the state median.
For a more precise estimate, scroll down to explore city and ZIP code-level tax rate trends across Warren County.
Property Tax Rates Across Warren County, New Jersey
What Are Effective Property Tax Rates Across Warren County?
Local government entities set tax rates, which vary widely across Warren County. Each year, the county estimates its budget for public services and divides that total by the assessed value of all taxable property within its jurisdiction.
Below, compare Warren County's effective property tax rate to other counties in New Jersey or the U.S. median of 1.02%.
Warren County's median effective rate stands at 3.55%, which is higher than the national median of 1.02%. Within Warren County, the highest rate is found in OXFORD at 4.46%, while BELVIDERE has the lowest at 2.40%.
These variations reflect differences in local school district levies, special assessment districts assessments, and special district bonds — which compound the base county rate.
Our median effective property tax rate (tax bill Ă· 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 Warren County Tax Rate
3.55%
Our median effective property tax rate (tax bill Ă· 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 New Jersey Tax Rate
2.88%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Warren County, New Jersey
| City | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Alpha | 3.28% | 3.46% | 4.12% | 4.30% | 4.30% |
| Andover | 2.70% | 2.70% | 2.70% | 3.19% | 3.23% |
| Asbury | 3.17% | 3.17% | 3.17% | 3.17% | 3.17% |
| Belvidere | 2.40% | 2.40% | 2.40% | 3.08% | 3.29% |
| Blairstown | 2.70% | 2.88% | 2.88% | 3.19% | 3.19% |
| Bloomsbury | 3.60% | 3.60% | 3.60% | 4.30% | 4.30% |
| Changewater | 3.96% | 4.03% | 4.03% | 4.03% | 4.03% |
| Columbia | 2.88% | 2.88% | 3.90% | 3.90% | 3.90% |
| Delaware | 3.88% | 3.90% | 3.90% | 3.90% | 3.90% |
| Great Meadows | 3.19% | 3.29% | 3.29% | 3.59% | 3.81% |
| Hackettstown | 3.37% | 3.37% | 3.55% | 3.59% | 3.74% |
| Hampton | 3.96% | 4.03% | 4.03% | 4.03% | 4.03% |
| Hardwick | 3.38% | 3.51% | 3.51% | 3.51% | 3.51% |
| Johnsonburg | 2.70% | 2.70% | 2.70% | 3.37% | 3.55% |
| Milford | 4.30% | 4.30% | 4.30% | 4.30% | 4.30% |
| Newton | 2.70% | 2.70% | 2.70% | 2.70% | 2.70% |
| Oxford | 2.40% | 3.55% | 4.46% | 4.46% | 4.46% |
| Phillipsburg | 2.70% | 2.86% | 4.20% | 4.20% | 4.21% |
| Port Murray | 3.55% | 3.55% | 3.55% | 3.55% | 3.55% |
| Stanhope | 3.14% | 3.24% | 3.29% | 3.31% | 3.32% |
| Stewartsville | 2.86% | 3.17% | 3.60% | 3.60% | 3.60% |
| Vienna | 3.59% | 3.59% | 3.59% | 3.59% | 3.59% |
| Washington | 3.24% | 4.03% | 4.03% | 5.17% | 5.17% |
| Allamuchy | N/A | N/A | N/A | N/A | N/A |
| Broadway | N/A | N/A | N/A | N/A | N/A |
| Hope | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Assessment Values Across Warren County, New Jersey
When examining property taxes in Warren County, 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 Warren 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 Warren County, assessment notices are sent in the spring 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. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Warren County.
For example, the median tax bill in Warren County is $7,155, with tax bills ranging significantly across the county. Hampton has the highest median home price at $331,900.
Property Tax Assessment Values Across Warren County, New Jersey
Source: Ownwell
$144,350
$238,125
$331,900
Median Warren County Market Value
$206,900
Median New Jersey Market Value
$288,200
Median United States Market Value
$235,294
Property Tax Assessment Values Across Warren County, New Jersey
| City | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Alpha | $120,480 | $145,300 | $187,900 | $245,700 | $346,740 |
| Andover | $217,370 | $251,050 | $328,500 | $409,675 | $455,290 |
| Asbury | $178,260 | $225,500 | $272,800 | $425,100 | $510,800 |
| Belvidere | $131,900 | $182,625 | $234,500 | $284,325 | $349,950 |
| Blairstown | $164,700 | $212,000 | $270,000 | $339,200 | $408,680 |
| Bloomsbury | $128,900 | $168,000 | $225,700 | $358,850 | $456,300 |
| Changewater | $167,450 | $175,450 | $209,200 | $245,975 | $292,500 |
| Columbia | $123,540 | $162,600 | $221,600 | $278,200 | $340,400 |
| Delaware | $129,850 | $134,750 | $144,350 | $158,600 | $186,250 |
| Great Meadows | $130,400 | $172,375 | $245,950 | $307,600 | $357,190 |
| Hackettstown | $135,250 | $183,100 | $246,750 | $310,875 | $359,700 |
| Hampton | $214,020 | $262,800 | $331,900 | $376,400 | $394,580 |
| Hardwick | $154,100 | $190,550 | $235,800 | $304,200 | $356,400 |
| Johnsonburg | $136,400 | $171,100 | $190,900 | $246,300 | $405,000 |
| Milford | $140,470 | $166,000 | $205,650 | $254,975 | $284,260 |
| Newton | $182,140 | $248,000 | $310,100 | $392,400 | $424,580 |
| Oxford | $109,660 | $138,100 | $189,100 | $245,900 | $295,320 |
| Phillipsburg | $70,420 | $107,300 | $151,600 | $206,900 | $286,680 |
| Port Murray | $113,300 | $157,400 | $219,500 | $303,800 | $358,400 |
| Stanhope | $125,990 | $142,500 | $161,000 | $184,850 | $643,230 |
| Stewartsville | $120,840 | $180,000 | $246,100 | $334,275 | $387,390 |
| Vienna | $137,200 | $151,550 | $167,300 | $211,650 | $246,100 |
| Washington | $112,240 | $137,900 | $178,600 | $250,100 | $342,700 |
| Allamuchy | N/A | N/A | N/A | N/A | N/A |
| Broadway | N/A | N/A | N/A | N/A | N/A |
| Hope | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Bills Across Warren County, New Jersey
Property tax bills in Warren County, New Jersey are based on a home’s assessed value, not its market price alone. Local tax rates are applied to that assessed value to determine the annual bill, and the final amount can vary by municipality and school district. For homeowners, this means two similar homes can face different tax bills if their assessments or local rates differ.
With a median home price of $206,900, property taxes in the county are substantial. The 25th percentile tax bill is $5,315, while the 75th percentile reaches $9,573. At the high end, the 90th percentile tax bill is $12,113, showing how quickly costs can rise for higher-valued or more heavily taxed properties.
Tax bills also differ across towns. The highest median tax bill is $13,066 in Hampton, while the lowest median tax bill is $5,158 in Johnsonburg. For homeowners, understanding how assessed value and local tax rates interact is essential to anticipating property tax costs.
Median Warren County Tax Bill
$7,155
Median New Jersey Tax Bill
$8,638
Median United States Tax Bill
$2,400
Property Tax Bills Across Warren County, New Jersey
| City | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Alpha | $4,752 | $5,784 | $7,448 | $9,215 | $11,947 |
| Andover | $6,456 | $7,615 | $9,257 | $11,280 | $13,244 |
| Asbury | $5,783 | $7,211 | $8,767 | $13,493 | $16,213 |
| Belvidere | $3,630 | $5,031 | $6,216 | $7,799 | $9,436 |
| Blairstown | $4,923 | $6,326 | $8,020 | $9,946 | $12,074 |
| Bloomsbury | $5,139 | $6,606 | $8,890 | $13,201 | $16,384 |
| Changewater | $6,630 | $6,995 | $8,439 | $9,923 | $11,826 |
| Columbia | $4,617 | $5,854 | $7,618 | $9,732 | $11,544 |
| Delaware | $5,021 | $5,149 | $5,598 | $6,181 | $7,258 |
| Great Meadows | $4,774 | $6,191 | $8,202 | $10,274 | $11,967 |
| Hackettstown | $4,971 | $6,569 | $8,494 | $10,901 | $12,694 |
| Hampton | $8,634 | $10,601 | $13,066 | $14,926 | $15,884 |
| Hardwick | $5,268 | $6,656 | $8,066 | $10,491 | $12,249 |
| Johnsonburg | $3,980 | $4,515 | $5,158 | $7,914 | $13,665 |
| Milford | $6,037 | $7,135 | $8,714 | $10,959 | $12,217 |
| Newton | $4,874 | $6,698 | $8,374 | $10,600 | $11,374 |
| Oxford | $4,540 | $5,744 | $7,230 | $9,459 | $11,460 |
| Phillipsburg | $2,832 | $4,069 | $5,371 | $7,006 | $9,137 |
| Port Murray | $4,010 | $5,584 | $7,775 | $10,773 | $12,826 |
| Stanhope | $4,211 | $4,723 | $5,295 | $6,034 | $20,225 |
| Stewartsville | $4,159 | $5,535 | $8,665 | $11,865 | $13,551 |
| Vienna | $4,930 | $5,445 | $6,011 | $7,605 | $8,842 |
| Washington | $5,312 | $6,364 | $7,935 | $10,411 | $13,472 |
| Allamuchy | N/A | N/A | N/A | N/A | N/A |
| Broadway | N/A | N/A | N/A | N/A | N/A |
| Hope | 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 | |
|---|---|
| Warren Tax Assessor | |
| Website | www.warrencountynj.gov |