[quote=UCGal] . . . The occupancy data for 2010 is here

http://factfinder2.census.gov/faces/tableservices/jsf/pages/productview.xhtml?pid=DEC_10_PL_H1&prodType=table
[/quote]

From this table, I just discovered that CA overall has an 8.0% occupancy rate and VA overall has a 9.2% occupancy rate.