Most listings are in the $10's per square foot per year. The Rock Island region is seeing a a rise in rates. In the last 3 months, the median rate increased $1 per sqft per year. That's a 7% rise in rent.
In the last 90 days, 35 listings have been made available, which means leases might be leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 3% of the available leases in the Rock Island are subleases, so you will probably have to focus your search on direct office leases. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
Even though the median size is 3,700 sqft, there are still 0 leases below 2,000 sqft. Most buildings in this area are close to 2 stories. Most buildings in this area were built in 1971 and are Class B.