Property taxNew HampshireCensus ACS 2020–2024
Merrimack County, New Hampshire property tax rate
Homeowners in Merrimack County pay a median $6,783 a year in property tax, an effective rate of 1.85% of home value.The median home is worth $367,600. That rate is 11% higher than the New Hampshire rate (1.66%) and 2.0 times the US rate (0.94%). It is the 5th highest of 10 counties in New Hampshire.
Compared with the state and the US
Merrimack County's rate is 2.0 times the US rate
Effective property tax rate (median tax ÷ median home value). Grey ticks: the other 9 counties in New Hampshire.
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates.
Estimate your property tax in Merrimack County
Home value × the county's effective rate. Change the value to see your estimate.
$565 a month at 1.85%, the effective rate for Merrimack County.
| At the New Hampshire rate (1.66%) | $6,089 |
| At the US rate (0.94%) | $3,446 |
An estimate from Census averages, not your bill. Your tax depends on your assessed value, local levies and any exemptions (homestead, senior, veteran) you claim.
Neighbouring counties
Sullivan County has the highest rate next to Merrimack County
Effective property tax rate of every county that borders Merrimack County
| County | Effective rate |
|---|---|
| Sullivan County median $5,756 | 2.14% |
| Strafford County median $6,708 | 1.85% |
| Merrimack County median $6,783 | 1.85% |
| Grafton County median $5,925 | 1.72% |
| Hillsborough County median $6,999 | 1.66% |
| Rockingham County median $7,839 | 1.58% |
| Belknap County median $4,924 | 1.31% |
U.S. Census Bureau, ACS 2020–2024 5-year estimates; county adjacency file 2024.
What homeowners pay
86% of Merrimack County homeowners pay $3,000 or more a year (US 49%)
Owner-occupied homes by yearly real estate taxes paid, with and without a mortgage combined
| Yearly property tax paid | Share of homeowners |
|---|---|
| No real estate taxes paid | 1% |
| Less than $800 | 3% |
| $800 to $1,499 | 3% |
| $1,500 to $1,999 | 2% |
| $2,000 to $2,999 | 5% |
| $3,000 or more | 86% |
U.S. Census Bureau, ACS 2020–2024 5-year estimates, table B25102.
Median tax with a mortgage: $7,168; without a mortgage: $6,065. Homes with a mortgage tend to be newer, bought more recently and worth more.
Five years earlier
The median tax bill rose 18% between the 2015–2019 and 2020–2024 surveys while median home value rose 55%, so the effective rate went down from 2.41% to 1.85%.
| 2015–2019 | 2020–2024 | Change | |
|---|---|---|---|
| Median property tax paid | $5,736 | $6,783 | +18% |
| Median home value | $237,600 | $367,600 | +55% |
| Effective rate | 2.41% | 1.85% | -0.57 pts |
Where to check your own bill
Your actual bill is set locally: the town assessor values your home, and the county, city, school district and other local districts each set a rate on that value. Exemptions such as a homestead exemption can cut the bill. Check your assessment and bill with the Merrimack County assessor or tax collector.
Questions and answers
- What is the property tax rate in Merrimack County?
- The effective rate is 1.85%: homeowners paid a median $6,783 a year on a median home value of $367,600 (Census ACS 2020-2024). The New Hampshire rate is 1.66% and the US rate 0.94%.
- How much is property tax on a $300,000 house in Merrimack County?
- About $5,536 a year ($461 a month) at the county's effective rate of 1.85%. Your bill depends on your assessed value, local levies and exemptions.
- Is property tax in Merrimack County high?
- Merrimack County's rate is 11% higher than the New Hampshire rate and 2.0 times the US rate. It ranks 5th of 10 counties in New Hampshire and 130 of 3,134 US counties (1 = highest).
- Why might my bill be different?
- The rate here is an average across homeowners. Bills depend on when the home was last assessed, the levies of your city and school district, and exemptions or caps you qualify for.
Related
- New Hampshire property tax rates by county1.66%
- Property taxes by stateall 50 states and DC
- Property tax calculatorany US county
- Where do my state taxes go in New Hampshire?state budget
- New Hampshire income tax calculatortake-home pay
Sources and notes
- U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates (released December 2025), tables B25103 (median real estate taxes paid by mortgage status), B25077 (median value), B25102 (mortgage status by real estate taxes paid), B25090 and B25082 (aggregate taxes paid and aggregate value) and B25003 (tenure). Owner-occupied homes. Public domain.
- Five years earlier: ACS 2015–2019 5-year estimates, tables B25103 and B25077. Dollars are nominal.
- Effective rate = median real estate taxes paid ÷ median home value. Taxes are what homeowners report paying for the year; values are what they say the home would sell for. Where the Census Bureau caps the median tax at “$10,000+”, the rate is total taxes paid ÷ total home value instead. ± figures are the Census 90% margins of error.
- Page built 2026-10-10.