Union County, New Jersey Property Taxes
Property Taxes in Union County, New Jersey
Median Union County effective property tax rate: 6.67%, significantly higher than the national median of 1.02%.
Median Union County home value: $177,800
Median annual Union County tax bill: $10,725, $8,325 higher than the national median property tax bill of $2,400.
How are property taxes in Union County calculated?
Property taxes in Union 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.
Understanding your county's property tax system, exemptions, and reduction opportunities can lead to significant savings. Whether you live in a city in the county or another part of Union County, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Union County, New Jersey Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
6.67%
Estimate Property Tax Bill
$11,859
$11,005
How Does the Union County Property Tax Calculator Work?
Use this Union County property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Union County's median effective tax rate of 6.67% to generate your estimate.
Enter your property's estimated assessed value — the figure the assessment office 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. Union County’s median property tax bill of $10,725 is well above the national median property tax bill of $2,400 and the New Jersey median property tax bill of $2,400.
For a more precise estimate, scroll down to explore city and ZIP code-level tax rate trends across Union County.
Property Tax Rates Across Union County, New Jersey
What Are Effective Property Tax Rates Across Union County?
Local government entities set tax rates, which vary widely across Union 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 Union County's effective property tax rate to other counties in New Jersey or the U.S. median of 1.02%.
Union County's median effective rate stands at 6.67%, which is higher than the national median of 1.02%. Within Union County, the highest rate is found in Scotch Plains at 11.42%, while Mountainside has the lowest at 1.99%.
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 ÷ 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 Union County Tax Rate
6.67%
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 New Jersey Tax Rate
2.88%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Union County, New Jersey
| City | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Berkeley Heights | 4.23% | 4.23% | 4.23% | 4.23% | 4.23% |
| Clark | 2.18% | 2.18% | 2.18% | 2.18% | 2.18% |
| Cranford | 6.67% | 6.67% | 6.67% | 6.67% | 6.67% |
| Dunellen | 8.65% | 8.65% | 8.65% | 8.65% | 8.65% |
| Elizabeth | 1.78% | 2.06% | 2.33% | 2.59% | 2.89% |
| Elizabethport | 1.49% | 1.76% | 2.11% | 2.46% | 2.75% |
| Fanwood | 2.84% | 2.84% | 2.84% | 2.84% | 2.84% |
| Garwood | 2.70% | 2.70% | 2.70% | 2.70% | 2.70% |
| Hillside | 8.01% | 8.01% | 8.01% | 8.01% | 8.01% |
| Kenilworth | 5.75% | 5.75% | 5.75% | 5.75% | 5.75% |
| Linden | 6.88% | 6.88% | 6.88% | 6.88% | 6.88% |
| Mountainside | 1.99% | 1.99% | 1.99% | 1.99% | 1.99% |
| Newark | 8.01% | 8.01% | 8.01% | 8.01% | 8.01% |
| New Providence | 4.73% | 5.01% | 5.01% | 5.01% | 5.01% |
| North Plainfield | 8.65% | 8.65% | 8.65% | 8.65% | 8.65% |
| Plainfield | 8.65% | 8.65% | 8.65% | 8.65% | 8.65% |
| Rahway | 7.17% | 7.17% | 7.17% | 7.17% | 7.17% |
| Roselle | 8.48% | 8.48% | 8.48% | 8.48% | 8.48% |
| Roselle Park | 4.31% | 4.31% | 4.31% | 4.31% | 4.31% |
| Scotch Plains | 11.42% | 11.42% | 11.42% | 11.42% | 11.42% |
| Springfield | 2.34% | 2.34% | 2.34% | 2.34% | 2.34% |
| Summit | 4.33% | 4.33% | 4.33% | 4.33% | 4.33% |
| Westfield | 2.21% | 2.21% | 2.21% | 2.21% | 2.21% |
| Colonia | N/A | N/A | N/A | N/A | N/A |
| East Orange | N/A | N/A | N/A | N/A | N/A |
| Edison | N/A | N/A | N/A | N/A | N/A |
| Irvington | N/A | N/A | N/A | N/A | N/A |
| Maplewood | N/A | N/A | N/A | N/A | N/A |
| Murray Hill | N/A | N/A | N/A | N/A | N/A |
| Piscataway | N/A | N/A | N/A | N/A | N/A |
| Plainville | N/A | N/A | N/A | N/A | N/A |
| Saint Albans | N/A | N/A | N/A | N/A | N/A |
| South Plainfield | N/A | N/A | N/A | N/A | N/A |
| Staten Island | N/A | N/A | N/A | N/A | N/A |
| Union | N/A | N/A | N/A | N/A | N/A |
| Vauxhall | N/A | N/A | N/A | N/A | N/A |
| Warren | N/A | N/A | N/A | N/A | N/A |
| Watchung | N/A | N/A | N/A | N/A | N/A |
| Winfield Park | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Assessment Values Across Union County, New Jersey
When examining property taxes in Union 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 Union County tax authority 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 Union County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of February.
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 tax bill in Union County is $10,725, compared with the national median property tax bill of $2,400. Tax bills range significantly across the county, with Westfield at $16,238 and Newark at $1,767. Westfield also has the highest median home price at $741,800.
Property Tax Assessment Values Across Union County, New Jersey
Source: Ownwell
$22,050
$381,925
$741,800
Median Union County Market Value
$177,800
Median New Jersey Market Value
$288,200
Median United States Market Value
$235,294
Property Tax Assessment Values Across Union County, New Jersey
| City | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Berkeley Heights | $190,000 | $240,300 | $287,900 | $357,600 | $455,640 |
| Clark | $363,600 | $420,900 | $493,000 | $601,250 | $728,400 |
| Cranford | $125,000 | $154,900 | $185,200 | $221,600 | $263,900 |
| Dunellen | $91,780 | $108,675 | $117,900 | $125,725 | $137,850 |
| Elizabeth | $264,600 | $365,600 | $455,400 | $557,775 | $655,600 |
| Elizabethport | $266,460 | $355,875 | $434,750 | $564,875 | $613,550 |
| Fanwood | $355,820 | $409,300 | $455,600 | $512,375 | $593,860 |
| Garwood | $318,070 | $352,175 | $388,100 | $440,175 | $520,010 |
| Hillside | $86,350 | $101,500 | $117,900 | $140,200 | $175,500 |
| Kenilworth | $141,100 | $153,400 | $170,900 | $207,400 | $252,540 |
| Linden | $85,700 | $112,250 | $133,000 | $154,800 | $177,600 |
| Mountainside | $443,640 | $506,000 | $577,600 | $697,700 | $876,380 |
| Newark | $2,200 | $4,750 | $22,050 | $113,150 | $126,650 |
| New Providence | $203,770 | $242,475 | $295,800 | $354,325 | $426,790 |
| North Plainfield | $91,600 | $98,100 | $115,000 | $135,000 | $140,560 |
| Plainfield | $71,000 | $88,000 | $105,200 | $125,000 | $153,100 |
| Rahway | $86,320 | $113,400 | $136,100 | $157,800 | $183,800 |
| Roselle | $92,070 | $105,400 | $120,000 | $140,500 | $165,030 |
| Roselle Park | $195,900 | $224,825 | $252,550 | $283,275 | $318,010 |
| Scotch Plains | $71,700 | $85,400 | $110,400 | $160,100 | $206,100 |
| Springfield | $312,600 | $432,000 | $516,000 | $625,200 | $755,600 |
| Summit | $174,760 | $238,000 | $357,800 | $568,150 | $798,420 |
| Westfield | $465,700 | $586,000 | $741,800 | $957,500 | $1,241,700 |
| Colonia | N/A | N/A | N/A | N/A | N/A |
| East Orange | N/A | N/A | N/A | N/A | N/A |
| Edison | N/A | N/A | N/A | N/A | N/A |
| Irvington | N/A | N/A | N/A | N/A | N/A |
| Maplewood | N/A | N/A | N/A | N/A | N/A |
| Murray Hill | N/A | N/A | N/A | N/A | N/A |
| Piscataway | N/A | N/A | N/A | N/A | N/A |
| Plainville | N/A | N/A | N/A | N/A | N/A |
| Saint Albans | N/A | N/A | N/A | N/A | N/A |
| South Plainfield | N/A | N/A | N/A | N/A | N/A |
| Staten Island | N/A | N/A | N/A | N/A | N/A |
| Union | N/A | N/A | N/A | N/A | N/A |
| Vauxhall | N/A | N/A | N/A | N/A | N/A |
| Warren | N/A | N/A | N/A | N/A | N/A |
| Watchung | N/A | N/A | N/A | N/A | N/A |
| Winfield Park | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Bills Across Union County, New Jersey
Property tax bills in Union County are based on a home’s assessed value and the local tax rate, which together determine what a homeowner owes each year. When a property’s assessed value rises, the tax bill can increase even if the homeowner has not made any changes to the home. Local budgets, school funding, and municipal services all influence the rate, so the final bill can vary widely from one area to another.
The typical home price in Union County is $177,800, and tax bills are often much higher than the $2,400 national median property tax bill. The county’s tax burden is substantial, with the 25th percentile at $8,819, the 75th percentile at $13,580, and the 90th percentile reaching $17,665. That means many homeowners pay several times the national median, which can make property taxes a major part of monthly housing costs.
Tax bills also differ by city. Westfield has the highest median tax bill at $16,238, while Newark has the lowest at $1,767. For homeowners, these differences can significantly affect affordability and long-term housing decisions.
Median Union County Tax Bill
$10,725
Median New Jersey Tax Bill
$8,638
Median United States Tax Bill
$2,400
Property Tax Bills Across Union County, New Jersey
| City | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Berkeley Heights | $7,977 | $10,126 | $12,115 | $14,990 | $18,983 |
| Clark | $8,012 | $9,217 | $10,765 | $13,125 | $15,889 |
| Cranford | $8,140 | $10,194 | $12,181 | $14,547 | $17,188 |
| Dunellen | $7,935 | $9,396 | $10,194 | $10,881 | $12,021 |
| Elizabeth | $5,846 | $8,172 | $10,718 | $13,358 | $15,715 |
| Elizabethport | $4,746 | $6,537 | $8,753 | $13,817 | $15,369 |
| Fanwood | $10,091 | $11,616 | $12,916 | $14,467 | $16,705 |
| Garwood | $8,604 | $9,495 | $10,473 | $11,846 | $14,018 |
| Hillside | $6,931 | $8,133 | $9,431 | $11,218 | $14,023 |
| Kenilworth | $8,118 | $8,819 | $9,818 | $11,881 | $14,338 |
| Linden | $5,867 | $7,703 | $9,113 | $10,592 | $12,119 |
| Mountainside | $8,792 | $10,045 | $11,457 | $13,793 | $17,392 |
| Newark | $176 | $381 | $1,767 | $9,067 | $10,148 |
| New Providence | $10,103 | $12,016 | $14,455 | $17,155 | $20,785 |
| North Plainfield | $7,807 | $8,209 | $9,597 | $11,663 | $12,153 |
| Plainfield | $6,104 | $7,539 | $9,078 | $10,736 | $12,902 |
| Rahway | $6,125 | $8,083 | $9,678 | $11,167 | $12,859 |
| Roselle | $7,790 | $8,901 | $10,155 | $11,817 | $13,843 |
| Roselle Park | $8,508 | $9,702 | $10,871 | $12,185 | $13,624 |
| Scotch Plains | $8,097 | $9,639 | $12,358 | $17,920 | $22,842 |
| Springfield | $7,578 | $10,101 | $12,065 | $14,560 | $17,630 |
| Summit | $7,356 | $10,230 | $15,456 | $24,186 | $34,028 |
| Westfield | $10,364 | $12,914 | $16,238 | $20,896 | $27,110 |
| Colonia | N/A | N/A | N/A | N/A | N/A |
| East Orange | N/A | N/A | N/A | N/A | N/A |
| Edison | N/A | N/A | N/A | N/A | N/A |
| Irvington | N/A | N/A | N/A | N/A | N/A |
| Maplewood | N/A | N/A | N/A | N/A | N/A |
| Murray Hill | N/A | N/A | N/A | N/A | N/A |
| Piscataway | N/A | N/A | N/A | N/A | N/A |
| Plainville | N/A | N/A | N/A | N/A | N/A |
| Saint Albans | N/A | N/A | N/A | N/A | N/A |
| South Plainfield | N/A | N/A | N/A | N/A | N/A |
| Staten Island | N/A | N/A | N/A | N/A | N/A |
| Union | N/A | N/A | N/A | N/A | N/A |
| Vauxhall | N/A | N/A | N/A | N/A | N/A |
| Warren | N/A | N/A | N/A | N/A | N/A |
| Watchung | N/A | N/A | N/A | N/A | N/A |
| Winfield Park | 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 | |
|---|---|
| Union Tax Assessor | |
| Website | taxrecords-nj.com |