Most listings are in the $30's per square foot per year. The Victorville submarket is seeing a a rise in rates. In the last 3 months, the median rate rose $33 per sqft per year.
Compared to the rest of the Metropolitan Los Angeles market, the Victorville region has lower rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 30 listings have come on the market, which means office spaces are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 90% of the listings in the Victorville 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 1,820 sqft. Most buildings in this market are around 1 floors. Most buildings in this region were built in 1988 and are Class B.