Most listings are in the $20's per square foot per year. The Yakima County submarket is experiencing a a boost in rates. In the last 3 months, the median rate went up $22 per sqft per year.
In the last 90 days, 12 listings have come on the market, which means new listings most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 117% of the listings in the Yakima 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 1,850 sqft. Most buildings in this market are approximately 2 stories. Most buildings in this market were built in 1983 and are Class A.