accuracy of geocoding postal codes

Discussion created by stoofleming on Feb 1, 2011
Latest reply on Feb 10, 2011 by ebowman-esristaff
Hi there, I am working on a research project that required geocoding all levels of schools across BC. The concern I have is that a large number of these schools only have PO boxes and a postal code - no specific address. My question is how does Arcmap decide where to place the point when it geocodes  a postal code. Many rural postal codes include large areas.