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Friday, May 19, 2017

Mapping racial transition since 1990 in Philadelphia

In what may become a Friday afternoon tradition on this blog, we've generated demographic block maps for another city: Philadelphia.

As elsewhere, Philadelphia began the period heavily segregated, and experienced an explosion of diversity since 1990. Compared to the other cities we've mapped, however, the pace of change seems to continue (and, especially in some northeastern neighborhoods, even accelerate) from 2000 and 2010. There are hints of gentrification around the downtown Central neighborhood, but they're subtle. (As it happens, this fits well with the findings of a Pew Trust report last year about gentrification in Philadelphia.)

As of 2010, at least, even in areas where a gentrifying trend is visible, considerable diversity remains. It remains to be seen whether this results in stably integrated neighborhoods, or is simply a waystation on the path to affluent white enclaves.

We've also mapped the same data, but with blocks color-coded by racial category of residents. We previously did the same with Minneapolis, where it was clear that the primary neighborhood racial divides were between white and nonwhite residents, with nonwhite residents of different racial groups often living side-by-side.

Not so with Philadelphia. In Philly, there is a dramatic boundary between predominantly-black and predominantly-Hispanic areas, neatly splitting the northern neighborhoods in two.

But note that while this divide persists all the way through to 2010, it does not reappear in the increasingly-nonwhite northeastern region. Instead, the area appears well on its way to achieving true diversity.

Here are the maps, in clickable, scrollable form. Downloadable, zoomable versions are available below.

Percentage nonwhite, 1990:

Percentage nonwhite, 2000:

Percentage nonwhite, 2010:

Race and ethnicity, 1990:

Race and ethnicity, 2000:

Race and ethnicity, 2010:

Download the maps here. We've got more maps of the Philadelphia region, and other regions as well, on the IMO website.

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