East Harlem, aka Spanish Harlem or El Barrio, is still one of the most dangerous neighborhoods in New York City, but that hasn't stopped an influx of young professionals, with rising rents and other signs of gentrification.
You can spot the rapid change in real estate data (see map on right) or, better yet, just by walking around the neighborhood.
The new Spanish Harlem.
The demographics are clearly in flux, as the number of self-identified Whites and Asians have doubled over the past two decades.
This isn't the first demographic turnover for the area. Always a working-class neighborhood and originally a German area, by the early 20th century East Harlem was largely inhabited by Irish, Italian, and Eastern European Jews.
See the rest of the story at Business Insider