Most listings are in the $10's per square foot per year. The Portage County submarket is going through a a rise in rates. In the last 3 months, the median rate went up $15 per sqft per year.
In the last 90 days, 1 listings have been posted online, which means new availabilities might be going fast. You'll want to be prepared to make an offer immediately. About 300% of the available space in the Portage 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 available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 370 sqft. Most properties in this region are approximately 3 floors. Most buildings in this area were built in 1970 and are Class B.