No. There were practically no Vietnamese-Americans outside of universities, etc.. Immigration for Vietnamese-Americans wasn't even possible until 1968.

After that, Operation New Life took asylum seekers and refugees from the Indochina region (including Vietnam, obviously), and they stayed at US military bases, I.e., Fort Chaffee is the most famous for it. Here's one on that. " Fort Chaffee was among four domestic military bases to take in refugees from the war. The others were Camp Pendleton in California, Eglin Air Force Base in Florida and Fort Indiantown Gap in Pennsylvania. Fort Chaffee took in the largest share of the nearly 100,000 Indochinese political refugees who came to the United States in 1975. " Article on Chaffee from UALpublicradio.org

I focus more on the Soviet's own 'Vietnam experience' more than our actual Vietnam, so this is fairly new territory. There seems plenty on the operation. https://amcmuseum.org/history/operation-babylift-and-new-life/

Primary source doc to glance over at regarding Operation New Life.https://www.govinfo.gov/content/pkg/STATUTE-89/pdf/STATUTE-89-Pg89.pdf

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So, refugees taken in (I.e., Hmong people, the Vietnamese, Cambodians), given shelter on US military bases and dispersed in small units across the country in US society (known as Operation New Arrivals).