In the US, public libraries outnumber McDonalds. There are 17000 public libraries and about 14000 McDonalds outlets.
@JamesBennetAU tweeted/asked if anyone had done the stats in Australia.
According to Public Libraries, Australia, 2003-04 (getting a bit old now) there were 532 local government libraries operating out of 1716 locations. – Libraries Fact Sheet (http://www.abs.gov.au/AUSSTATS/abs@.nsf/Lookup/4172.0Feature+Article42008+(First+Edition)#PARALINK9) Accessed 18 June 2013.
A search on the Australian Libraries Gateway (ALG) for public libraries shows 1549 Australian libraries – (http://www.nla.gov.au/apps/libraries/) Accessed 18 June 2013
According to the McDonalds restaurant locator there are 896 McDonalds outlets in Australia. (http://mcdonalds.com.au/find-us/restaurant) Accessed 18 June 2013