9539
Of the 500 + primary statistical areas in the U.S. , this CSA had among the highest GDP per capita in 2018 , at $ 106,757 .
 U.S.
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 U.S.