Americorp Real Estate
Brokers Associate, e-PRO
Your question can best be answered if you told us not only the type of home, which you stated is a SF, but more importantly specific details about what you're looking for, i.e. number of bedrooms & baths, garage or not, if yes how many cars or is car port ok, square footage you want as a minimum, age of property, etc...
These details really help to determine a "real" number/average.
I would recommend you find a buyers agent. Once you relay all of the necessary information (your needs, wants, likes, must haves or not) he/she can best inform/educate you. A buyers agent, by the way, is at no charge to you.
Interview a few buyers agents. Start with the ones that responded right here on Trulia, myself included.
Good luck to you and if I can be of further service please don't hesitate to contact me directly. Simply click on my profile.
A good agent will help give a full analysis detail for detail. Some homes may have higher end finishes, quality construction materials, roof decks, or other desirable features that have nothing to do with sqft.
There are other ways to determine what price to offer or to determine value.