According to data from the US BLS, the unemployment rate of Massachusetts was 2.9% (sa) in October, 2019. Among all Massachusetts counties, these 3 were among those with high unemployment rates (nsa): Hampden (3.6%), Bristol (3.2%), and Berkshire (2.9%).

On the hand, the following three counties were among those with low unemployment rates (nsa): Middlesex (2.1%), Norfolk (2.3%), and Franklin (2.3%).

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

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