Yearly the State Police publishes a report of the number of CCW's issued. Each years report can be found at the following:
To get an idea how many CCWs are in force, you have to add the previous 5 years. See Below:
Year Statewide Allegheny County (Pittsburgh)
2008 150,843 13,012
2007 164,824 11,029
2006 102,473 8,729
2005 101,643 8,729
2004 107,285 10,081
Totals 627,068 51,580
For the record, Philadelphia is not the second highest (even though it is the most populated), and Westmoreland County (just east of Allegheny) has the highest per capita.
Pennsylvania is about 45,000 ahead of Florida, but we are closing the gap at roughly 11,00 per month net gain.