First off, what is a "mil"? Here is the official definition form the State of Connecticut Office of Policy and Management (OPM)
A mill is equal to $1.00 of tax for each $1,000 of assessment. To calculate the property tax, multiply the assessment of the property by the mill rate and divide by 1,000. For example, a property with a assessed value of $50,000 located in a municipality with a mill rate of 20 mills would have a property tax bill of $1,000 per year.
Local property tax mill rates have been set for individual Connecticut municipalities for fiscal year 2009-2010. These rates are based upon the 2008 grand list and are available below. These are the most current mill rates and are reflected in each municipality's July 2009 tax bills.
Hartford's mil rate is approaching 80 mils. Here is a listing of all towns and boroughs for the State of Connecticut and their respective mil rates. The next highest mil rate is New Haven at 42.21.
Here are a few others:
East Hartford 31.67
New Britain 34.98
New Haven 42.21
Take a guess who is top on the list.
2008 Mill Rates