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County tax profile · 2026 · Census ACS + IRS data

Property Tax & Income in Barnstable County, Massachusetts

Barnstable County has an effective property tax rate of 0.67%. On the median home value of $629,000, that's roughly $4,239 per year. Median household income is $95,241.

Effective Property Tax Rate1
0.67%
median tax $4,239 ÷ median home $629,000
Median Home Value1
$629,000
owner-occupied
Median Household Income1
$95,241
per-capita $62,086
Est. Annual Tax on Median Home1
$4,239
at 0.67% 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.

MetricBarnstable CountyMassachusetts (state context)
Effective property tax rate10.67%1.06%
Median home value1$629,000—
State income tax3top rate 5.00%top rate 5.00%
State sales tax36.25% combined6.25% 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 Barnstable County, MA

In Barnstable County, Massachusetts, an effective property tax rate of 0.674% means a home valued at the median $629,000 carries an annual real-estate tax bill of about $4,239. That rate sits well below the statewide median of 1.063% and also under the national median of 0.794%, placing the county 11th of 14 Massachusetts counties for property tax rate. Households here earn a median of $95,241, with per-capita income at $62,086, so the tax bill amounts to roughly 4.5% of median household income. Buyers weighing a purchase in Buzzards Bay, Cataumet, or East Falmouth should note that while home prices run high, the lower tax rate softens the ongoing cost of ownership compared with many other parts of the state.

Frequently asked questions

What is the property tax rate in Barnstable County, MA?
The effective rate is 0.67% — meaning the median tax bill equals about 0.67% of the median home value.
How much are property taxes on a median home?
On the median home ($629,000), the estimated annual bill is about $4,239.
Is Barnstable County's rate high or low?
Compare it to the state median of 1.06% 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 Barnstable 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 Barnstable 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.