race were 158,205 persons (45.5%). Among the Hispanic population, 39.5% are Mexican , 1.3% Salvadoran , 0.5% Guatemalan , and 0.5% Puerto Rican . Non-Hispanic Whites were 37.8% of the population in 2010, [ 49 ] compared to 71% in 1980. [ 50 ] The Census reported that 344,088 people (99.0%