The cities at the opposite ends of America's economic spectrum are San Jose, thriving in Silicon Valley, and Brownsville, Texas, where two of every five residents live in poverty, reports 24/7 Wall St. A look at the richest and poorest metro areas, based on Census figures, starting with the richest and their median household incomes:
 
 -  San Jose, $90,737
-  Washington, DC, $88,233
-  Stamford-Norwalk, Conn., $79,841
-  San Francisco, $74,922
-  Boston, $71,738
 
                            
                            
                            
                            
                            
                                
                                
                                    
                                        The poorest five metro areas and their median household incomes:
 
 -  Brownsville, Texas, $30,953
-  Dalton, Ga., $32,858
-  McAllen, Texas, $33,761
-  Gadsden, Ala., $34,264
-  Lake Havasu City-Kingman, Ariz., $34,445
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complete lists.