According to data from the US BLS, the unemployment rate of Connecticut was 9% (sa) in August, 2011. Among all Connecticut counties, these 3 were among those with high unemployment rates (nsa): Windham (10.2%), New Haven (10.1%), and Hartford (9.5%).

On the hand, the following three counties were among those with low unemployment rates (nsa): Tolland (7.9%), Middlesex (8.1%), and Litchfield (8.2%).

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

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