Most listings are in the $20's per square foot per year. The Blue Earth County submarket is experiencing a a rise in rates. In the last 3 months, the median rate rose $22 per sqft per year.
In the last 90 days, 22 listings have been listed, which means spaces most likley are going fast. You'll want to be prepared to make an offer immediately. About 150% of the available space in the Blue Earth County are subleases, so you might be able to find a shorter term or below market rent. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,000 sqft. Most properties in this area are around 2 stories. Most buildings in this market were built in 1976 and are Class B.