According to data from the US BLS, the unemployment rate of Connecticut was 9.5% (sa) in June, 2010. Among all Connecticut counties, these 3 were among those with high unemployment rates (nsa): Windham (11.1%), New Haven (10.4%), and Hartford (9.9%).

On the hand, the following three counties were among those with low unemployment rates (nsa): Middlesex (8.4%), Tolland (8.5%), and Fairfield (8.7%).

The chart and table below shows the unemployment rate (nsa) for each county.

You can see similar information by state for the United States.