The typical asking rate per listing is in the $10's per square foot per year. The Carbon County region is going through a a boost in rates. In the last 3 months, the median rate increased $20 per sqft per year.
In the last 90 days, 5 listings have come on the market, which means new availabilities are probably going fast. You'll want to be prepared to make an offer immediately. About 60% of the available leases in the Carbon County are subleases, so you might be able to snag a great spot on a short term. 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 2,400 sqft. Most properties in this area are close to 1 stories. Most buildings in this region were built in 1950 and are Class B.