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Connecticut Property Tax Calculator

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Overview of Connecticut Taxes

Connecticut homeowners pay among the highest property taxes in the country. The state’s average effective property tax rate (taxes as a percentage of home value) is 1.83%, which ranks as the eighth highest of any state.

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  • About This Answer

    To calculate the exact amount of property tax you will owe requires your property's assessed value and the property tax rates based on your property's address. Please note that we can only estimate your property tax based on median property taxes in your area. There are typically multiple rates in a given area, because your state, county, local schools and emergency responders each receive funding partly through these taxes. In our calculator, we take your home value and multiply that by your county's effective property tax rate. This is equal to the median property tax paid as a percentage of the median home value in your county.

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  • Our Tax Expert

    Jennifer Mansfield Tax

    Jennifer Mansfield, CPA, JD/LLM-Tax, is a Certified Public Accountant with more than 30 years of experience providing tax advice. SmartAsset’s tax expert has a degree in Accounting and Business/Management from the University of Wyoming, as well as both a Masters in Tax Laws and a Juris Doctorate from Georgetown University Law Center. Jennifer has mostly worked in public accounting firms, including Ernst & Young and Deloitte. She is passionate about helping provide people and businesses with valuable accounting and tax advice to allow them to prosper financially. Jennifer lives in Arizona and was recently named to the Greater Tucson Leadership Program.

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Connecticut Property Taxes

Photo credit: ©iStock.com/Sean Pavone

Connecticut homeowners pay among the highest property taxes in the country. The state’s average effective property tax rate (taxes as a percentage of home value) is 1.83%, which ranks as the eighth highest of any state. Connecticut is unusual in that counties are not responsible for administering the property tax. Instead, cities and towns set rates and collect property taxes. Below, we will look at the local rates across the state of Connecticut and other important property tax rules.

How Connecticut Property Taxes Work

Property taxes in the state of Connecticut are administered entirely by cities and towns. While the state does have some oversight of the process, homeowners deal almost entirely with local officials. Assessors assigned by the local municipality valuate property to determine its fair market value. By law, this must happen at least once every five years, but assessments can be more frequent than that.

Once a property’s fair market value has been established, the statewide assessment ratio of 70% is applied. This means that a property’s assessed value is equal to 70% of the home’s market value. The homeowner does not pay taxes on market value but on this lower, assessed value. So, for example, if your home is worth $500,000, the assessed value will be $350,000.

If you do not yet have a home in Connecticut but are looking to purchase one, check out our guide to Connecticut mortgage rates and getting a mortgage in Connecticut before you make the move.

Connecticut Property Tax Rates

Municipalities in Connecticut apply property taxes in terms of mill rates. A mill rate is equal to $1 in tax for every $1,000 in assessed value. To calculate your tax based on your mill rate, divide your assessed value by 1,000 and multiply the result by your rate.

So, for example, a home with a market value of $500,000, an assessed value of $350,000 and a mill rate of 50 would have annual property taxes of $17,500.

The table below shows the average effective property tax rates for each of Connecticut’s 8 counties. An effective property tax rate is equal to taxes paid as a percentage of home value. The U.S. average effective property tax rate is 1.19%.

CountyMedian Home ValueMedian Annual Property Tax PaymentAverage Effective Property Tax Rate
New Haven$256,900$5,1642.01%
New London$252,900$3,9391.56%

Fairfield County

Fairfield County is the most populous county in the state of Connecticut. The major cities include Fairfield, Bridgeport, Stamford and Norwalk. Property taxes in Fairfield are lower than the state average, although slightly higher than the national average.

Rates vary significantly depending on where you live. For example, in Bridgeport the mill rate is 42.198 while in Norwalk rates are lower than 30 mills. Across all municipalities in the county the average homeowner pays $6,769 annually in property taxes.

Hartford County

While homeowners in Hartford County pay less in absolute terms than those in Fairfield County, they actually face higher rates. The average effective property tax rate across Hartford County is 1.98%, higher than both the state and national average.

In the city of Hartford the mill rate is 74.29 mills. That is higher than in other nearby cities like New Britain. The rate there is 49 mills.

New Haven County

Effective property tax rates in New Haven are among the highest in the state of Connecticut. The countywide average effective rate is 2.01%. That means the average New Haven homeowner pays over 2% of her home’s value in property taxes every year.

The mill rates in the two largest cities in New Haven County exceed 40 mills. In the city of New Haven the rate is 41.55 mills. In Waterbury the rate is even higher at 58.22 mills.

New London County

Photo credit: ©iStock.com/enysarwar

Located in southeastern Connecticut along the Atlantic coast, New London has the lowest property taxes on average of any Connecticut county. (Although, as mentioned above, tax rates in Connecticut are administered by municipalities, not counties.) The average effective property tax rate in New London County is 1.56%. That is significant lower than the state average rate of 1.83%.

In Norwich, the county’s largest city, property taxes are higher than in most other parts of the county. The mill rate in Norwich is 39.04 mills for the 2014-2015 fiscal year.

Litchfield County

The average homeowner in Litchfield County pays $4,460 in annual property taxes. That is lower than the state average ($5,107), although still well above the national average. Effective property tax rates in Litchfield County are also above the national average. The average effective property tax rate in Litchfield County is 1.69%.

Middlesex County

Middlesex County is located in central Connecticut, south of Hartford. The largest city in the county is Middletown, where the city mill rate is 32.7 mills. In addition, fire departments levy property taxes with mill rates ranging from 1.326 to 7.3 mills. Including all municipalities in Middlesex County, the average effective property tax rate is 1.85%.

Tolland County

Tolland County is the second smallest county in Connecticut by population. On average, homeowners in the county pay $4,702 annually in property taxes. Tax rates, which are determined by municipalities, vary depending on where you live. For example, in Andover the rate is 30.72 mills. In Stafford the rate is slightly higher at 33.03 mills.

Windham County

If you’re looking for low property tax rates in Connecticut, it might be a good idea to start your search in Windham County. On average, homeowners in Windham pay $3,391 annually in property taxes, well below the state average.

Mill rates in the town of Windham vary depending on what district you are in. In District 1 the total mill rate is 34.27. In District 2 the mill rate is 43.43.

Property Tax: Which Counties are Getting the Best Bang for Their Buck

SmartAsset’s interactive map highlights the places across the country where property tax dollars are being spent most effectively. Zoom between states and the national map to see the counties getting the biggest bang for their property tax buck.

Rank County Property Tax Rate School Rating Crimes Per 100k People


Our study aims to find the places in the United States where people are getting the most for their property tax dollars. To do this we looked at school rankings, crime rates and property taxes for every county.

As a way to measure the quality of schools, we calculated the average math and reading/language arts proficiencies for all the school districts in the country. Within each state, these schools were then ranked between 1 and 10 (with 10 being the best) based on those average scores.

For each county, we calculated the violent and property crimes per 100,000 residents.

Using the school and crime numbers, we calculated a community score. This is the ratio of the school rank to the combined crime rate per 100,000 residents.

We used the number of households, median home value and average property tax rate to calculate a per capita property tax collected for each county.

Finally, we calculated a tax value by creating a ratio of the community score to the per capita property tax paid. This shows us the counties in the country where people are getting the most bang for their buck, or where their property tax dollars are going the furthest.

Sources: US Census Bureau 2016 American Community Survey, Department of Education, Federal Bureau of Investigation, State Police or Justice Department websites