By clicking on the different demographics, you can see a summary of the type of person Esri's geographic data says you are if you live in Harlem.
For Harlem, 55% are coded as "Trendsetters" — educated singles, who "want to stay that way," with incomes big enough to pay for upscale city living and hobbies that include "dining out" and "exploring different hobbies." (Who knew eating was considered a hobby?)
Thirty percent are classified as "City Strivers," people who are "relatively young, foreign-born" with most of their income going to rent. And just over 15% are described as "High Rise Renters" who commute far for work and "struggle to make ends meet."