Charlestown, Sullivan County, New Hampshire Property Taxes
Property Taxes in Charlestown, New Hampshire
Median Charlestown, New Hampshire effective property tax rate: 3.64%, significantly higher than the national median of 1.02%, and higher than the New Hampshire state median of 1.82%.
Median Charlestown, New Hampshire home value: $138,400
Median annual Charlestown, New Hampshire tax bill: $4,890, $2,490 higher than the national median property tax bill of $2,400.
How are property taxes in Sullivan calculated?
Property taxes in Charlestown, 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 Charlestown's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Charlestown, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Charlestown, Sullivan County, New Hampshire Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
3.64%
Estimate Property Tax Bill
$5,038
$4,675
How Does the Charlestown Property Tax Calculator Work?
Use this Charlestown property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Charlestown's median effective tax rate of 3.64% — based on actual property records in Sullivan 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 Charlestown'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 Charlestown: rates range from 4890.00 in 03603 to 4890.00 in 03603, 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 Charlestown.
About Charlestown Property Taxes
About Property Taxes in Charlestown, Sullivan, New Hampshire
Charlestown’s median effective property tax rate of 3.64% is higher than the New Hampshire state median of 1.82% and higher than the national median of 1.02%. This rate reflects the Sullivan 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 Charlestown. Homeowners in ZIP code 03603 carry a median effective rate of 3.64%, while the lowest rate is also 3.64%. That means there is no spread across the town, but the rate is still well above the national median. Understanding how your assessed value is determined can make a meaningful difference to your annual tax bill.
Charlestown homeowners who believe their assessed value is too high can file a formal appeal with the Tax Assessor before September 1, 2026.
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 Charlestown, Sullivan 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 Charlestown's effective property tax rate to other cities in New Hampshire and the median property tax rates in New Hampshire 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 Charlestown Tax Rate
3.64%
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 Sullivan County Tax Rate
2.43%
Median Effective New Hampshire Tax Rate
1.82%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Charlestown, Sullivan County, New Hampshire
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 03603 | 3.63% | 3.64% | 3.64% | 3.64% | 3.64% |
Source: Ownwell
Property Tax Assessment Values Across Charlestown, Sullivan County, New Hampshire
When examining property taxes in Charlestown, 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 Sullivan County assessment office 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 Sullivan County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of the month.
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 Charlestown.
For example, the median home price in Charlestown is $138,400, with tax bills ranging significantly across the county. 03603 has the highest median home price at $138,400.
Property Tax Assessment Values Across Charlestown, Sullivan County, New Hampshire
Source: Ownwell
$87,336
$273,018
$458,700
Median Charlestown Market Value
$138,400
Median Sullivan County Market Value
$239,400
Median New Hampshire Market Value
$360,500
Median United States Market Value
$235,294
Property Tax Assessment Values Across Charlestown, Sullivan County, New Hampshire
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 03603 | $23,060 | $64,250 | $138,400 | $188,150 | $246,740 |
Source: Ownwell
Property Tax Bills Across Charlestown, Sullivan County, New Hampshire
Property tax bills in Charlestown are based on the assessed value of a home and the local tax rate set by Sullivan County and other taxing authorities. For homeowners, the bill is determined by multiplying the assessed value by the applicable property tax rate, so changes in market value or assessment can affect what is owed each year.
With a median home price of $138,400, the typical property tax bill in Charlestown is $4,890, which is well above the national median property tax bill of $2,400 and the national median property tax rate of 1.02%. That means homeowners here often face higher carrying costs than many property owners across the country.
Tax bills can vary widely, with the 25th percentile at $2,295 and the 75th percentile at $6,500. At the 90th percentile, bills reach $8,009, showing how much assessments and local rates can impact what homeowners pay.
Property Tax Bills Across Charlestown, Sullivan County, New Hampshire
Source: Ownwell
$1,522
$4,749
$7,976
Median Charlestown Tax Bill
$4,890
Median Sullivan County Tax Bill
$5,563
Median New Hampshire Tax Bill
$6,530
Median United States Tax Bill
$2,400
Property Tax Bills Across Charlestown, Sullivan County, New Hampshire
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 03603 | $862 | $2,295 | $4,890 | $6,500 | $8,009 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | March 1 |
Links | |
|---|---|
| Sullivan Tax Assessor | |
| Website | nhtaxkiosk.com |