On average, listings lease in the $10's per square foot per year. The Victorville region is going through a a rise in rates. In the last 3 months, the median rate went up $2 per sqft per year. That's a 15% rise in rent.
Compared to the rest of the Metropolitan Los Angeles market, the Victorville submarket has less expensive rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 19 listings have been posted online, which means listings are probably going fast. You'll want to be prepared to tour spaces as quick as possible. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 720 sqft. Most buildings in this market are approximately 2 floors. Most buildings in this market were built in 1988 and are Class B.