Hunterdon County NJ property tax rates by town (2025)
Each town sets its own general rate. The bars below are one named municipality’s school / county / municipal split of that rate — not a single county-wide bill. State school aid is outside this bar; it reduces the school levy before the rate is struck. How NJ taxes work.
Hunterdon County at a glance
25 municipalities and 57,560 parcels are on the 2026 file. 0 of those towns have a 2026 general rate loaded. On a $500,000 sale in 2025, the estimated tax runs from $6,061 in Glen Gardner Boro to $17,446 in Hampton Boro. The middle bill is $11,003 in Lebanon Twp. Class 2 residential assessments moved from $17,221,564,900 to $17,751,728,800, up 3.1%. The median class 2 house was built in 1981.
Median school-share town (rate year 2025): Califon Boro
Among 25 municipalities on the 2025 rate sheet. Bars are Califon Boro’s own components — not three separate county medians.
Schools
66.1%
County
12.7%
Municipal
21.2%
School-share range in 2025: Flemington Boro 49.2% → Holland Twp 77.3%.
How to read Hunterdon County
On the 2025 rate sheet, the middle municipality by school share is Califon Boro: 66.1% schools, 12.7% county, 21.2% municipal. School share on that same sheet runs from Flemington Boro at 49.2% to Holland Twp at 77.3%.
Class 2 residential net assessments in this county changed from $17,221,564,900 to $17,751,728,800, up 3.1%, on 41,680 parcels with both a prior net and a 2026 net. That is the assessment roll for this county. It is not a list of which towns rose the most, and it is not an appraisal.
Estimated class 2 tax on the towns with both a prior rate and a current rate moved from $475,001,970 to $502,445,501, up 5.8%. Each of those 25 towns uses its own two rate years. The prior rate is as early as 2024 and the current rate is as late as 2025. This is not one calendar-year county levy. When a town reassesses, the assessment percent and this bill percent are different stories, because the rate falls as the assessments reset.
The largest class share of net assessed value in the 2026 file is Residential at 71.0%.
These are this county’s own figures. The general rate is not comparable across towns until each town’s assessment ratio is applied. The sale-price section states the tax on the same $200,000 sale and the same $500,000 sale after that ratio. Towns stay in legal-name order. State school aid is outside the rate bars.
Tax on a $200,000 or $500,000 sale, 2025
A sale price is not the assessment. In Hunterdon County for 2025, each town’s average ratio turns that price into an assessment, and that town’s general rate is applied to the assessment. On a $500,000 sale, the bill is $6,061 in Glen Gardner Boro (ratio 58.93%, rate 2.057) and $17,446 in Hampton Boro (ratio 86.88%, rate 4.016). The middle bill is $11,003 in Lebanon Twp. A $200,000 sale uses the same ratio and rate in that town. This is an Abstract of Ratables estimate, not a collector bill, and the ratio is the town average, not an appraisal of one house.
Highest estimated tax in Hunterdon County: $134,751
Residential
The highest residential estimate in Hunterdon County is $134,751 at 143 WOOLF ROAD, Alexandria Twp, on a net assessment of $4,373,600 and a 2025 general rate of 3.081.
The highest business estimate in Hunterdon County is $2,296,960 at 1545 ROUTE 22, Clinton Twp, on a net assessment of $74,000,000 and a 2025 general rate of 3.104.
Owner names are not shown. Each town’s own rate is used, so a higher assessment in a low-rate town can still be a lower tax. Commercial and industrial parcels (class 4A and 4B) are the business list. Apartment buildings are class 4C and are not in that list. This is not a collector’s bill.
Hunterdon County this year
25 municipalities sit on the 2026 assessment file. Loaded general rates in this warehouse are predominantly 2025 — check each town’s rate-year note before reading a YoY percent as final.
On the 2025 sheet, school share of the local rate runs from Flemington Boro (~49% schools) to Holland Twp (~77% schools). The median school-share municipality is named in the panel above (Kingwood Twp on the loaded file, about 66% / 19% / 14% school/county/municipal).
Flemington Boro sits toward the municipal-heavy end of the county (~40% municipal / ~49% schools, general rate 2.736). That contrast is why a single “Hunterdon County tax rate” headline fails — the table is the story.
Sources: NJ Division of Taxation MOD-IV and Abstract of Ratables. Estimates are not collector bills. State school aid is outside these bars. How NJ taxes work · Disclaimer.
Housing stock in Hunterdon County, median year built 1981
On the 2026 file, class 2 houses in Hunterdon County with a year built have a median year of 1981, about 45 years old. Of those 41,039 houses, the largest share was built 1980–1999. This is the assessor’s year built. It is not a ranking of towns.
By parcel count, Residential 72.5%, Vacant land 9.2%, Farm (qualified) 8.3%, Farm (regular) 5.3%, Commercial 3.8%, Other / unclassified 0.3%, Industrial 0.3%, Apartment 0.2%. Those percentages are a count of parcels, not a share of tax dollars. The class table uses the tax-base share.
Year built
Before 1940
15.2%
1940–1959
10.8%
1960–1979
22.4%
1980–1999
38.1%
2000–2009
9.6%
2010–2026
3.9%
Assessor building line
Grouped from the assessor’s building abbreviation. One-family, two-family, and condo are the codes that read clearly. Other codes stay in their own group. This is not a bedroom count, and square feet are left off because most records do not include them.
One-family
24,704 73.4%
Two-family
55 0.2%
Three-family or more
5 <0.1%
Condo
1,945 5.8%
Other codes
6,935 20.6%
Ratable base by property class
Share of net assessed value in the MOD-IV parcel file (not the Abstract value columns). Class 15 exempt parcels may be under-counted when net value is zero. This is the tax base mix, not a school rating.
Class
Parcels
Net assessed
% of net
Residential 2
41,703
$17,752,792,000
71.0%
Vacant land 1
5,319
$2,374,089,896
9.5%
Commercial 4A
2,209
$2,390,320,300
9.6%
Industrial 4B
172
$437,902,400
1.8%
Apartment 4C
134
$356,397,000
1.4%
Farm (regular) 3A
3,042
$1,648,224,200
6.6%
Farm (qualified) 3B
4,781
$49,313,154
0.2%
Other / unclassified other
200
$130,420
0.0%
Municipalities
Default order is legal name. The general rate is not comparable across towns with different equalized ratios and is not a ranking of tax burden. Percents are shares of school + county + municipal cents on the rate sheet.