You need only go to colleges in, say, the Midwest to appreciate the Asian feel of this campus. But Berkeley is freighted with the baggage of stereotypes — that it is boring socially, full of science nerds, a hard place to make friends.

“About half the students at this school spend their entire career in the library,” one person wrote in a posting on vault.com, a popular job and college search Web site.

Another wrote: “Everyone who is white joins the Greek system and everyone who isn’t joins a ‘theme house’ or is a member of a club related to race.”

There is some truth to the image, students acknowledge, but it does not do justice to the bigger experience at Berkeley. “You have the ability to stay with people who are like you and not get out of your comfort zone,” says Ms. Nakata. “But I learned a lot by mixing it up. I lived in a dorm with a lot of different races, and we would have these deep conversations all the time about race and our feelings of where we belong and where we came from.” But she also says that the “celebrate diversity aspect” of Berkeley doesn’t go deep. “We want to respect everyone’s differences, but we don’t mix socially.”

Near the end of my stay at Berkeley I met a senior, Jonathan Lee, the son of a Taiwanese father and a mother from Hong Kong. He grew up well east of Los Angeles, in the New America sprawl of fast-growing Riverside County, where his father owned a restaurant. He went to a high school where he was a minority.

“When I was in high school,” he says, “there was this notion that you’re Chinese, you must be really good in math.” But now Mr. Lee is likely to become a schoolteacher, much to the chagrin of his parents, “who don’t think it will be very lucrative.”

The story of Jon Lee’s journey at Berkeley is compelling. As president of the Asian-American Association, he has tried to dispel stereotypes of “the Dragon Lady seductress or the idea that everybody plays the piano.” His closest friends are in the club. It may seem that he has become more insular, that he has found his tribe. But Mr. Lee says he has been trying to lead other Asian students out of the university bubble. Once a week, they go into a mostly black and Hispanic middle school in the Bay Area to mentor students.