The 2010 United States Census reported that Stanislaus County had a population of 514,453. The racial makeup of Stanislaus County was 337,342 (65.6%) White (U.S. Census), 14,721 (2.9%) African American (U.S. Census), 5,902 (1.1%) Native American (U.S. Census), 26,090 (5.1%) Asian (U.S. Census) (1.5% Indian, 1.1% Filipino, 0.7% Cambodian, 0.5% Chinese, 0.3% Vietnamese, 0.3% Laotian, 0.1% Japanese, 0.1% Korean, 0.1% Cambodian), 3,401 (0.7%) Pacific Islander (U.S. Census), 99,210 (19.3%) from Race (United States Census), and 27,787 (5.4%) from two or more races. Hispanic (U.S. Census) or Latino (U.S. Census) of any race were 215,658 persons (41.9%); 37.6% of Stanislaus County is Mexican, 0.6% Puerto Rican, 0.5% Salvadoran, 0.2% Nicaraguan, and 0.2% Guatemalan.. How many percent of Stanislaus County is not Mexican?