Most listings are in the $10's per square foot per year. The Cerro Gordo County region is going through a decline in rates. In the last 3 months, the median rate decreased $29 per sqft per year. That's a 67% decline in rent.
In the last 90 days, 3 listings have come on the market, which means new availabilities most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. 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 1,200 sqft. Most properties in this area are approximately 1 stories. Most buildings in this area were built in 1986 and are Class A.