I have just analyzed many active and sold vacant land Realtor MLS data sheets of sites of about an acre and very generally the asking prices for the many choices are ranging from $160,000 to $350,000, with an approx average asking price of about $260,000.
As for the actual average selling price, it looks like about $240,000.
Prices vary widely based on the view, location, trees, neighborhood, season, negotiations and motivations of the parties.
Let me know if you would like me to email you a complete list of all the information you may want and/or call with any questions......
I grew up in Barrington and my family still has a farm here. A great place to live....