Hillsborough County, NH Property Tax: $6,791/yr (2026)
Last reviewed:
The effective property tax rate in Hillsborough County is 1.76% of assessed home value. On a home at the county median value of $385,500, that works out to about $6,785 per year, or $565 per month. Hillsborough County is located in southern New Hampshire, and is home to approximately 424,732 residents.
About Hillsborough County
Hillsborough County covers approximately 876.5 square miles in New Hampshire. The county is home to about 424,732 residents living in roughly 176,753 housing units, of which 64.1% are owner-occupied. The median household income is $100,436, and the median home was built in 1977.
Hillsborough County borders Essex County, Middlesex County, Worcester County, Cheshire County, Merrimack County — useful comparisons if you're considering nearby areas with potentially different tax rates.
How Property Taxes Work in New Hampshire
Property taxes in New Hampshire are administered at the county level. Each county sets a millage rate applied to the assessed value of real property — the effective rate above accounts for any partial assessments and exemptions already built into the local tax base. Assessed value can differ meaningfully from current market value depending on how often the county reassesses and what fraction of market value it uses.
Most counties in New Hampshire offer exemptions that reduce the taxable assessed value: homestead exemptions for primary residences, senior exemptions, disability exemptions, and veteran exemptions are common. These reduce your effective rate below the county-wide average shown here. Contact the Hillsborough County Assessor's office to learn which exemptions apply to your property and when to file.
Hillsborough County vs. Neighboring Counties
| Location | Eff. Rate | Median Home | Annual Tax |
|---|---|---|---|
| Hillsborough County, NH | 1.76% | $385,500 | $6,785 |
| New Hampshire state average | 1.85% | — | $7,132* |
| Essex County | 1.07% | $584,000 | $6,267 |
| Middlesex County | 1.05% | $687,200 | $7,240 |
| Worcester County | 1.33% | $390,700 | $5,207 |
| Cheshire County | 2.32% | $257,200 | $5,968 |
| Merrimack County | 2.00% | $330,600 | $6,617 |
| US national average | 1.10% | $281,900 | $3,101 |
*State average annual tax computed at Hillsborough County's median home value of $385,500. Source: US Census ACS 2023 5-year estimates.
Frequently Asked Questions
How does Hillsborough County's property tax rate compare to the rest of New Hampshire?
At 1.76%, Hillsborough County is lower than the New Hampshire state average of 1.85%. On a home at the county median of $385,500, that means about $6,785 per year — versus $7,132 at the state average rate, a difference of $347 per year. Compared to the national average of 1.10%, Hillsborough County is above average.
What's a typical annual property tax bill in Hillsborough County?
For a home at the county median value of $385,500, the annual property tax in Hillsborough County is approximately $6,785 — or about $565 per month. For a home worth $578,250, expect around $10,177 per year. For a $771,000 home, approximately $13,570 per year. Use the calculator above to estimate taxes for any assessed value.
Where do I appeal a Hillsborough County property tax assessment?
Property assessment appeals in Hillsborough County are handled by the Hillsborough County Assessor's office. Most jurisdictions require filing within 30–90 days of receiving your assessment notice — confirm the specific deadline with the assessor's office before submitting, as deadlines and procedures vary by county. A successful appeal can reduce your assessed value and lower your tax bill for the current and future tax years.
What exemptions are available in Hillsborough County?
New Hampshire counties commonly offer homestead exemptions for owner-occupied primary residences, senior citizen exemptions for qualifying homeowners aged 65 and older, exemptions for disabled residents, and veterans' exemptions. Each exemption reduces your assessed taxable value, which in turn reduces your effective tax rate below the county-wide 1.76% shown here. Contact the Hillsborough County Assessor's office to confirm which exemptions are available and the application deadlines.
Data sources: US Census Bureau ACS 2023 5-Year Estimates, US Census Gazetteer (2024), County Adjacency File