Most listings are in the $10's per square foot per year. The Marion region is going through a a boost in rates. In the last 3 months, the median rate went up $17 per sqft per year.
In the last 90 days, 6 listings have come on the market, which means listings 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 on the market, so finding a space for a small business might be tough.
Even though the median size is 3,200 sqft, there are still 0 office spaces below 2,000 sqft. Most buildings in this area are around 1 floors. Most buildings in this region were built in 1970 and are Class B.