Dunbarton, Hillsborough County, New Hampshire Property Taxes
Property Taxes in Dunbarton, New Hampshire
Median Dunbarton, New Hampshire effective property tax rate: 2.04%, significantly higher than the national median of 1.02%, and higher than the New Hampshire state median of 1.82%.
Median Dunbarton, New Hampshire home value: $454,200
Median annual Dunbarton, New Hampshire tax bill: $9,284, $6,884 higher than the national median property tax bill of $2,400.
How are property taxes in Hillsborough calculated?
Property taxes in Dunbarton, New Hampshire 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 Dunbarton's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Dunbarton, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Dunbarton, Hillsborough County, New Hampshire Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
2.04%
Estimate Property Tax Bill
$9,266
$8,598
How Does the Dunbarton Property Tax Calculator Work?
Use this Dunbarton property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Dunbarton’s median effective tax rate of 2.04% — based on actual property records in Hillsborough County — to generate your estimate.
Enter your property's estimated assessed value — the figure the local assessment process uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Dunbarton’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 Dunbarton: rates range by local levy and assessment district differences, which can affect what you owe.
For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Dunbarton.
About Dunbarton Property Taxes
About Property Taxes in Dunbarton, Hillsborough, New Hampshire
Dunbarton’s median effective property tax rate of 2.04% is higher than the New Hampshire state median of 1.82% and higher than the national median of 1.02%. This rate reflects the Hillsborough County base levy combined with local school district levies and special assessment districts that vary by subdivision throughout the town.
Property tax rates are not uniform across Dunbarton. Homeowners in the highest ZIP code carry a median effective rate of 2.04%, while those in the lowest pay 2.04%. This spread reflects how school district boundaries and local assessment districts are drawn across Hillsborough County. Understanding which part of Dunbarton you live in can make a meaningful difference to your annual tax bill.
Dunbarton homeowners who believe their assessed value is too high can file a formal appeal with the Tax Assessor before the September 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 Dunbarton, Hillsborough County, New Hampshire
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 Dunbarton's effective property tax rate to other cities in New Hampshire and the median property tax rates in New Hampshire and the U.S.
Property Tax Rates Across Dunbarton, Hillsborough County, New Hampshire
Source: Ownwell
1.36%
2.35%
3.34%
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 Dunbarton Tax Rate
2.04%
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 Hillsborough County Tax Rate
1.96%
Median Effective New Hampshire Tax Rate
1.82%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Dunbarton, Hillsborough County, New Hampshire
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 03046 | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Assessment Values Across Dunbarton, Hillsborough County, New Hampshire
When examining property taxes in Dunbarton, New Hampshire, 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 Hillsborough County 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 Hillsborough County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of the month when notices are sent.
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 understanding how assessed and market values are determined, property owners can better navigate their tax responsibilities in Dunbarton.
For example, the median home price in Dunbarton is $454,200, with a median tax bill of $9,284, well above the national median property tax bill of $2,400.
Property Tax Assessment Values Across Dunbarton, Hillsborough County, New Hampshire
Source: Ownwell
$165,050
$411,500
$657,950
Median Dunbarton Market Value
$454,200
Median Hillsborough County Market Value
$366,900
Median New Hampshire Market Value
$360,500
Median United States Market Value
$235,294
Property Tax Assessment Values Across Dunbarton, Hillsborough County, New Hampshire
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 03046 | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Bills Across Dunbarton, Hillsborough County, New Hampshire
How Are Property Tax Bills Calculated in Dunbarton?
Property tax bills in Dunbarton are based on the assessed value of a home and the local tax rate set by the taxing authorities in Hillsborough County. The assessed value is the amount used to determine how much tax a homeowner owes, and it is influenced by the market value of the property, local budgets, and any exemptions that may apply. When the assessed value rises, the property tax bill can increase as well.
For homeowners in Dunbarton, property taxes can have a major impact on annual housing costs. With a median home price of $454,200, the typical tax bill is $9,284, which is well above the national median property tax bill of $2,400 and the national median property tax rate of 1.02%. This means local homeowners may face a heavier tax burden than many households across the country, making it especially important to understand how the bill is calculated and whether the assessment is accurate.
Property Tax Bills Across Dunbarton, Hillsborough County, New Hampshire
Source: Ownwell
$2,983
$7,937
$12,890
Median Dunbarton Tax Bill
$9,284
Median Hillsborough County Tax Bill
$7,162
Median New Hampshire Tax Bill
$6,530
Median United States Tax Bill
$2,400
Property Tax Bills Across Dunbarton, Hillsborough County, New Hampshire
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 03046 | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | March 1 |
Links | |
|---|---|
| Hillsborough Tax Assessor | |
| Website | www.vgsi.com |