The typical asking rate per listing is in the $10's per square foot per year. The Bentonville region is seeing a decline in rates. In the last 3 months, the median rate decreased $1 per sqft per year. That's a 6% decline in rent.
In the last 90 days, 35 listings have come on the market, which means office spaces most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. About 6% of the office spaces in the Bentonville are subleases, so you will probably have to consider a longer term lease. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,880 sqft. Most properties in this market are close to 1 stories. Most buildings in this market were built in 2002 and are Class B.