https://www.siliconvalley.com/2023/05/23/study-santa-clara-county-edges-out-orange-county-in-share-of-vietnamese-restaurants/

Vietnamese food fans take note: Santa Clara County now has the highest share of Vietnamese restaurants in the nation, edging out Orange County, according to a new study on Asian cuisine in America by the Pew Research Center.

The study tabulated the number of open Asian restaurants in the U.S. in March 2023. Vietnamese restaurants made up 6 percent of all restaurants in Santa Clara County vs. 5 percent in Orange County. Santa Clara County has the second highest population of Vietnamese outside of Vietnam (120,000) behind Orange County (180,000).