On average, listings lease in the $20's per square foot per year. The Morton County region is seeing a a boost in rates. In the last 3 months, the median rate increased $1 per sqft per year. That's a 6% increase in rent.
In the last 90 days, 2 listings have been made available, which means leases most likley are going fast. You'll want to be prepared to make an offer immediately. About 50% of the office spaces in the Morton County are subleases, so you might be able to sign a shorter term by taking over a previous lease. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,200 sqft. Most buildings in this region were built in 2003 and are Class A.