Rohnert Park station is a SonomaâÂÂMarin Area Rail Transit station in Rohnert Park, California. It opened to preview service on June 29, 2017; full commuter service commenced on August 25, 2017. It is located on the Rohnert Park Expressway. The city's station was initially to be located further north near Golf Course Drive, but these plans were amended, resulting in the current location.