According to data from the US BLS, the unemployment rate of Connecticut was 7.4% (sa) in February, 2009. Among all Connecticut counties, these 3 were among those with high unemployment rates (nsa): Windham (9.5%), New Haven (8.5%), and Hartford (8.4%).

On the hand, the following three counties were among those with low unemployment rates (nsa): Tolland (6.8%), Middlesex (6.8%), and Fairfield (7.4%).

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

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