Home›Property Tax›New Hampshire›Coos County
County tax profile · 2026 · Census ACS + IRS data

Property Tax & Income in Coos County, New Hampshire

Coos County has an effective property tax rate of 1.90%. On the median home value of $188,900, that's roughly $3,579 per year. Median household income is $57,677.

Effective Property Tax Rate1
1.90%
median tax $3,579 ÷ median home $188,900
Median Home Value1
$188,900
owner-occupied
Median Household Income1
$57,677
per-capita $37,679
Est. Annual Tax on Median Home1
$3,579
at 1.90% effective rate

What you'll pay, at a glance

Property taxes are the largest local tax most homeowners pay. The effective rate measures the real tax bill as a share of home value — a more useful number than the nominal “mill rate,” because assessment practices vary county to county.

MetricCoos CountyNew Hampshire (state context)
Effective property tax rate11.90%1.78%
Median home value1$188,900—
State income tax3No state income taxNo state income tax
State sales tax30.00% combined0.00% combined

How this is calculated

The effective property tax rate is the median real-estate tax bill divided by the median home value — both for owner-occupied homes, from the U.S. Census Bureau's American Community Survey (ACS 5-year estimates)1. Median income is also from the ACS1. Federal and state income-tax figures use IRS2 and Tax Foundation3 data.

About Coos County, NH

Coos County’s effective property tax rate of 1.895% runs above New Hampshire’s statewide median of 1.782%, placing it third among the state’s ten counties. That gap matters less in dollar terms than the statewide picture might imply, because home values here are lower: the median home is valued at $188,900, generating an annual tax bill of about $3,579. Against a median household income of $57,677, that bill consumes a noticeable share of earnings. The contrast with the national median rate of 0.794% is starker still — Coos County property owners pay roughly two and a half times the national rate on each dollar of value. Berlin, the largest of the county’s principal communities, sits within this same tax structure. Buyers drawn by inexpensive housing in Berlin, Bretton Woods, or Colebrook should weigh the higher rate alongside the lower sticker prices.

Frequently asked questions

What is the property tax rate in Coos County, NH?
The effective rate is 1.90% — meaning the median tax bill equals about 1.90% of the median home value.
How much are property taxes on a median home?
On the median home ($188,900), the estimated annual bill is about $3,579.
Is Coos County's rate high or low?
Compare it to the state median of 1.78% and the national average near 1.1%.
How does the effective rate differ from my mill rate?
A mill rate is the nominal levy per $1,000 of assessed value. The effective rate reflects what you actually pay after exemptions and assessments — it's the median tax bill as a share of median home value, so it better predicts your real cost.
Will a reassessment raise my tax bill?
Not necessarily. If your home's assessed value rises, your bill can go up, but only if the mill rate and exemptions stay flat. Contact the Coos County assessor's office to review your current assessment.
Can I appeal my property tax assessment?
Yes. Most counties allow an appeal when you believe the assessed value exceeds the market value. File with the Coos County assessor within the local deadline, typically with comparable sales as evidence.
Sources
[1] U.S. Census Bureau — ACS 5-Year (2023) — Median home value (B25077), median real-estate taxes (B25103), median household income (B19013), per-capita income (B19301).
[2] IRS — Statistics of Income — County income, AGI, and real-estate taxes paid.
[3] Tax Foundation — State income, sales, corporate, and estate/inheritance tax rates.