"Obviously" in what way? Houston's population is 25% foreign born, with an almost even 4-way split between Black, Asian, Hispanic, and White residents.
We're also more socioeconomically balanced and diverse.
I grew up in the VA suburbs of DC, and one of the obvious ways that you can tell the diversity was in the schools. The schools had signs telling all visitors to report to the main office, and (owing to the numbers of immigrants for whom English proficiency wasn't strong) repeated this message not only in English but Spanish... and Arabic (or Farsi, I can't distinguish the two), Chinese, Korean, Vietnamese, and Tagalog.
