According to data from the US BLS, the unemployment rate of Connecticut was 5.6% (sa) in October, 2021. Among all Connecticut counties, these 3 were among those with high unemployment rates (nsa): New London (5.6%), Hartford (5.4%), and New Haven (5.4%).

On the hand, the following three counties were among those with low unemployment rates (nsa): Tolland (3.9%), Middlesex (4.2%), and Litchfield (4.2%).

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

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