alternatehistory.com

The Bronx contains one of the five poorest Congressional Districts in the U.S., (the 16th), but its wide variety of neighborhoods also includes the affluent Riverdale and Country Club.[9][10] The Bronx, particularly the South Bronx, saw a sharp decline in population, livable housing, and the quality of life in the late 1960s and the 1970s, culminating in a wave of arson, but has shown some signs of revival in recent years.

How is it possible with a POD in the 1940s (or later if that is possible) that the Bronx can become one of the five most affluent congressional districts in the United States, preferably ranked around the 16th?
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