Courthouse1024.jpg. http://www.co.bonneville.id.us/images/SiteImages/Courthouse1024.jpg. Bonneville County, in southeast Idaho, is part of the Upper Snake River Valley. Its eastern border is also the state border of Idaho and Wyoming. Idaho Falls, originally called Eagle Rock, is the county seat. Incorporated cities in Bonneville County include Ammon, Idaho Falls, Iona, Irwin, Swan Valley, and Ucon. Bonneville is the fourth largest county in the state with a population of more than 104,000.
As a very loose guideline, in most areas, asphalt installation will range from about $2.50 to $4.00 per square foot, while concrete typically ranges from about $4.00 to about $6.00 per square foot but can rise to more than $15.00 per square foot when special finishes and detailing are used.
A basic asphalt driveway costs about  $2 to $5 per square foot, according to CostHelper.com. That amounts to $720 to $1,800 for a basic standard-size residential, two-car asphalt driveway measuring 18 feet wide and 20 feet long. A stamped asphalt pattern, such as in the shape of bricks or stones, costs $3 to $9 per square foot, or $1,080 to $3,240 for a standard-size driveway. By comparison, the cost for a plain concrete driveway runs $3 to $10 per square foot, according to Costhelper, or $1,080 to $3,600 for a standard-size, two-car driveway.