- Welcome to the Oak Knolls Shopping Centers in Orcutt, California Welcome to the Oak Knolls Shopping Centers. Serving Santa Maria, California, and the Surrounding Area for Over Thirty-Nine Years. With Over 85 Retail Shops, Professional Services, Financial Organizations, and Dining Selections to Serve You. Please welcome our newest businesses to our Oak Knolls Centers:......Chapman University at ...www.oakknolls.com