Cornish, Sullivan County, New Hampshire Property Taxes
Property Taxes in Cornish, New Hampshire
Median Cornish, New Hampshire effective property tax rate: 1.62%, significantly higher than the national median of 1.02%, and lower than the New Hampshire state median of 1.82%.
Median Cornish, New Hampshire home value: $399,550
Median annual Cornish, New Hampshire tax bill: $6,469, higher than the national median property tax bill of $2,400.
How are property taxes in Sullivan calculated?
Property taxes in Cornish, 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 Cornish's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Cornish, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Cornish, Sullivan County, New Hampshire Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
1.62%
Estimate Property Tax Bill
$6,473
$6,006
How Does the Cornish Property Tax Calculator Work?
Use this Cornish property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Cornish's median effective tax rate of 1.62% — 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 Cornish'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 Cornish: rates are 1.62% in 03745, with the highest and lowest median property tax bill both at $6,469. Cornish's median tax rate is higher than the 1.02% national median property tax rate and higher than the 1.82% state median tax rate.
For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Cornish.
About Cornish Property Taxes
About Property Taxes in Cornish, Sullivan, New Hampshire
Cornish’s median effective property tax rate of 1.62% is lower 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 Cornish. Homeowners in the 03745 ZIP code carry a median effective rate of 1.62%, while those in the same ZIP code pay 1.62%. This spread — 0 percentage points across the same town — reflects how school district boundaries and local assessment districts are drawn across Sullivan County. Understanding which part of Cornish you live in can make a meaningful difference to your annual tax bill.
Cornish homeowners who believe their assessed value is too high can file a formal appeal with the local Tax Assessor before March 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 Cornish, 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 Cornish'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 Cornish Tax Rate
1.62%
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 Cornish, Sullivan County, New Hampshire
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 03745 | 1.62% | 1.62% | 1.62% | 1.62% | 1.62% |
Source: Ownwell
Property Tax Assessment Values Across Cornish, Sullivan County, New Hampshire
When examining property taxes in Cornish, 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 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 Sullivan County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of the season.
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 Cornish.
For example, the median home price in Cornish is $399,550, with tax bills ranging significantly across the county. The median property tax bill is $6,469, compared with the national median property tax bill of $2,400.
Property Tax Assessment Values Across Cornish, Sullivan County, New Hampshire
Source: Ownwell
$87,336
$273,018
$458,700
Median Cornish Market Value
$399,550
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 Cornish, Sullivan County, New Hampshire
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 03745 | $230,310 | $312,800 | $399,550 | $523,112 | $691,463 |
Source: Ownwell
Property Tax Bills Across Cornish, Sullivan County, New Hampshire
Property tax bills in Cornish are based on the assessed value of a home and the local tax rate set for Sullivan County. When a property’s market value rises, the assessed value can increase as well, which often leads to a higher bill. Local taxing authorities use that assessment to calculate what a homeowner owes each year.
For Cornish homeowners, the typical tax burden is substantial. The median home price is $399,550, and the median property tax bill is $6,469 in ZIP code 03745. That is well above the national median property tax bill of $2,400 and the national median property tax rate of 1.02%. Bills can vary widely, with the 25th percentile at $5,064, the 75th percentile at $8,470, and the 90th percentile at $11,195.
These differences matter because even small changes in assessed value can have a meaningful impact on annual housing costs.
Median Cornish Tax Bill
$6,469
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 Cornish, Sullivan County, New Hampshire
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 03745 | $3,729 | $5,064 | $6,469 | $8,470 | $11,195 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | March 1 |
Links | |
|---|---|
| Sullivan Tax Assessor | |
| Website | nhtaxkiosk.com |