According to data from the US BLS, the unemployment rate of Connecticut was 3.4% (sa) in June, 2023. Among all Connecticut counties, these 3 were among those with high unemployment rates (nsa): Fairfield (3.8%), New Haven (3.8%), and Windham (3.8%).

On the hand, the following three counties were among those with low unemployment rates (nsa): Middlesex (3.1%), Litchfield (3.1%), and New London (3.5%).

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

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