One acre lots are running about $150,000 for a developed parcel, a 5 acre parcel anywhere from $250,000 to $350,000. If you are considering large parcels of property (over 100 acres) you will probably pay anywhere from $8,000 to $11,000 fper acre for undeveloped land. Of course where the land is located, the conditions of the land, wooded or non wooded, etc. will also play a role in the price. Location, location, location.
If I can be of any further help please contact me at 630-975-2227.