Homelessness

answer: 

"Hunger and Homelessness Survey" is a report from the 2007 Conference of U.S. Mayors. It gives some statistics on various cities. Information regarding Philadelphia is on page 34.

Can be found at:
http://usmayors.org/HHSurvey2007/hhsurvey07.pdf

"Incarceration and Homelessness" is a paper from the 2007 National Symposium on Homelessness research. Includes some Philadelphia statistics that can be of use.

Can be found at:
http://www.huduser.org/publications/pdf/p9.pdf

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