As we all know that nothing is sacred on the net. Photos can be copied and used as someone else's. Ladies please water mark your photos... if you do not know how, please ask around.
Onto a more serious issue... Outside photos showing buildings, streets etc... all are identifiable by Google Earth. Yes, our friends with the big bad search engine can zone in on an area and or address based on photo recognition.
How they do I am not sure but a sure fire way to prevent anyone from figuring out where about you live is to :
1) only post photos in your portfolio from inside photo shoots... Google will not have the background on file.
2) drive across town to do the photo shoot... sure Google knows about your local parks that are on the opposite side of town.. but YOU do not live near them.
Always be safe in life... and carry on