According to data from the US BLS, the unemployment rate of Connecticut was 4.3% (sa) in March, 2007. Among all Connecticut counties, these 3 were among those with high unemployment rates (nsa): Windham (5.2%), Hartford (4.9%), and New Haven (4.8%).

On the hand, the following three counties were among those with low unemployment rates (nsa): Tolland (3.8%), Fairfield (3.8%), and Middlesex (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.