Here’s the Census Bureau.
http://factfinder.census.gov/servlet/DTTable?_bm=y&-geo_id=01000US&-ds_name=ACS_2008_3YR_G00_&-mt_name=ACS_2008_3YR_G2000_B02001
It’s got whites at 72%, but that includes all hispanics and latinos who consider themselves racially white, which is most of them.
See post 26