We usually analyse US economy on an aggregate basis. However, a state-wise/region-wise provides more clarity on where the issues are greater or lesser.
I came across this excellent analysis by Chad Wilkerson of Kansas Fed where he studies this recession and previous post war recession on the basis of Fed regions. As we know, Federal Reserve is divided into 12 regions, so this study tells you which area recession is more severe, less severe, where it started before the national average etc etc.
It has excellent insights as he looks into the industrial structure of each region to determine the severity of recession. Some regions are commodity industry based, some manufacturing based, some services based etc. Hence the impact on each region would be different.
The document does not allow to copy esxtracts, so cant paste from the document to explain. Read the superb paper for details.