Sullivan County Property Taxes
Sullivan County, New Hampshire
Effective Tax Rate
0.00%
1.1% below state avgMedian Annual Tax
$0
$468/mo escrow
Estimate Your Tax
Annual Tax
$0
Monthly
$0
Eff. Rate
2.38%
At a Glance
Median Home Value
$236,300
State avg ▼ $316,040
Tax w/ Mortgage/yr
$5,710
$476/mo escrow
Tax w/o Mortgage/yr
$5,471
$456/mo
State Tax Rate Rank
#10
of 10 counties (1 = lowest)
Data Story
About Property Taxes in Sullivan County, New Hampshire
Sullivan County's tax rate hits highest tier
Sullivan County's effective tax rate of 2.38% ranks among the highest in the nation, far exceeding the national median of 1.09%. Though the median property tax of $5,616 appears lower in absolute dollars, this reflects Sullivan's lower median home value of $236,300—below the national median of $281,900. The effective rate tells the true story: Sullivan residents pay a premium rate relative to home value.
Sullivan leads New Hampshire in tax rates
Sullivan County's 2.38% effective tax rate is the highest in New Hampshire, exceeding the state average of 1.85% by 0.53 percentage points. The median property tax of $5,616 sits just below the state median of $5,680, but the rate differential indicates Sullivan shoulders a heavier proportional burden. This makes Sullivan one of the most tax-intensive counties in the state.
Higher rate than eastern Strafford County
Sullivan County's 2.38% effective rate surpasses Strafford County's 1.98% by a significant margin, making it the higher-taxing county regionally. Sullivan homeowners pay $5,616 annually on a median home valued at $236,300, while Strafford homeowners pay $6,582 on a home valued $96,100 higher. The rate difference reflects distinct regional and municipal tax structures across southwestern New Hampshire.
What median homeowners pay annually
A homeowner with a median-valued property of $236,300 in Sullivan County pays approximately $5,616 in annual property taxes, or $468 monthly. Factoring in mortgage-related obligations increases the annual bill to $5,710 for those carrying a mortgage. This represents a steady, substantial cost for property ownership in the county.
Property tax appeals can lower your bill
Sullivan County residents should know that overassessment is common and a formal appeal to your town's assessor is a legitimate option. Many homeowners don't realize their assessed value may exceed actual market value—a strong case for filing an appeal. Review comparable property sales in your town, and consider requesting an assessment review if recent market data supports a lower value.
How Sullivan County Compares
Median Annual Property Tax
Sullivan County
2.38%
Effective rate
New Hampshire Avg
1.80%
Effective rate
National Avg
0.91%
Effective rate
Frequently Asked Questions
What is the property tax rate in Sullivan County, New Hampshire?
How much are property taxes in Sullivan County?
How does Sullivan County compare to the New Hampshire average?
What is the median home value in Sullivan County, New Hampshire?
Why is Sullivan County property tax rate higher than the New Hampshire average?
How does Sullivan County rank for property taxes in New Hampshire?
Counties with Similar Tax Rates
Nearby Counties
Other Counties in New Hampshire
Data updated: March 2026
Data from U.S. Census Bureau, American Community Survey 2019-2023 5-Year Estimates. Effective tax rate is calculated as median property tax divided by median home value.