According to a 2005 study by Thierry Devos and Mahzarin R. Banaji, yes, at least for Whites and Asians.
Here’s the abstract:
Six studies investigated the extent to which American ethnic groups (African, Asian, and White) are associated with the category “American.” Although strong explicit commitments to egalitarian principles were expressed in Study 1, Studies 2–6 consistently revealed that both African and Asian Americans as groups are less associated with the national category “American” than are White Americans. Under some circumstances, a dissociation between mean levels of explicit beliefs and implicit responses emerged such that an ethnic minority was explicitly regarded to be more American than were White Americans, but implicit measures showed the reverse pattern (Studies 3 and 4). In addition, Asian American participants themselves showed the American White effect, although African Americans did not (Study 5). The American White association was positively correlated with the strength of national identity in White Americans. Together, these studies provide evidence that to be American is implicitly synonymous with being White.
From the folks who brought us Dear White People: DVRSE App (Caution: Satire!)
The title says it all. Read the editorial here.
Last summer, the Michigan town of Grosse Pointe Park erected a farmer’s market in the middle of one of the few remaining streets that allowed cars to pass between the tony suburb and the urban Detroit neighborhoods at its border. It was the latest of many attempts by Grosse Pointe Park residents to close off roads and block traffic between what has become a predominantly white, affluent suburb, and its poorer, urban neighbor.
There were protests about the border, and Grosse Pointe Park later said it would tear down the farmer’s market and re-open the road, but the incident speaks volumes to the segregation that exists in Detroit, and the tensions that can grow as a result.
The barrier erected in Grosse Pointe (Alana Semuels)
The fact that these two areas are so close is unique—the border between Grosse Pointe Park and the city of Detroit is the only place in any of America’s biggest cities where a very wealthy, predominantly-white area abuts a very poor, black one, according to research from a new working paper from the University of Minnesota. But the existence of self-segregated wealthy white areas close by low-income minority ones isn’t unique, according to the Minnesota researchers. They have sorted census tracts in 15 of America’s 20 biggest cities into “racially concentrated areas of affluence” and “racially concentrated areas of poverty,” and find that many cities have more areas of segregated affluence than they do poverty.