According to data from the US BLS, the unemployment rate of New Hampshire was 3.6% (sa) in September, 2006. Among all New Hampshire counties, these 3 were among those with high unemployment rates (nsa): Coos (3.8%), Rockingham (3.6%), and Hillsborough (3.4%).

On the hand, the following three counties were among those with low unemployment rates (nsa): Grafton (2.8%), Sullivan (2.9%), and Carroll (2.9%).

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

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