As noted in Indian Counted First in Southern California, Pauline Murillo of San Manuel was the first person the 2010 Census counted in the Los Angeles region. Here are some photos of the event:
2010 California Indian Census's Photos--First to Be Counted
For more on the subject, see Oneidas Undercounted in 2000 Census and Video of My Census Meeting.
Below: Pauline "Dimples" Murillo says a few words.