Yes but most of such countries are small in population.
The biggest countries (by population): Germany, France, Italy, Spain, Poland
All have lover GDP.
The countries with higher GDP than US (according to wikipedia): Luxembourg (pop: 638,153 ), Ireland (pop: 5,006,061), Norway (not in EU, pop: 5,457,423), Switzerland (not EU, pop: 8,717,698)
I am sure if you just take the richest few states, they are also richer than average US
The biggest countries (by population): Germany, France, Italy, Spain, Poland
All have lover GDP.
The countries with higher GDP than US (according to wikipedia): Luxembourg (pop: 638,153 ), Ireland (pop: 5,006,061), Norway (not in EU, pop: 5,457,423), Switzerland (not EU, pop: 8,717,698)
I am sure if you just take the richest few states, they are also richer than average US