Most listings are in the $10's per square foot per year. The Yellowstone County submarket is going through a decrease in rates. In the last 3 months, the median rate decreased $0 per sqft per year. That's a 2% decrease in rent.
In the last 90 days, 57 listings have come on the market, so you'll want to check back regularly for new listings. About 2% of the office spaces in the Yellowstone County are subleases, so you will probably need to sign a longer term lease with the landlord directly. 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 1,800 sqft. Most buildings in this area are around 2 stories. Most buildings in this area were built in 1984 and are Class A.