Maps of neighborhood census data

The New York Times has some great maps of the 2010 census data, allowing you to see tract by tract how the population has changed in any city. http://projects.nytimes.com/census/2010/map

Related, I've used the data to make a spreadsheet of the growth and decline of neighborhoods and sections of Scranton, PA, which has finally leveled off after seven or 8 decades of decline. Interesting to see where the growth is that has offset the declines elsewhere. Basically boils down to intra-city sprawl, the UofS, and Latinos..

Scranton Neighborhood Populations