Native Americans in the United States reached the West Coast in the 1770s, smallpox rapidly killed at least 30% of Northwest Coast Native Americans. For the next eighty to one hundred years, smallpox and other diseases devastated native populations in the region. Puget Sound area populations, once estimated as high as 37,000 people, were reduced to only 9,000 survivors by the time settlers arrived en masse in the mid-19th century. Smallpox epidemics in 1780–82 and 1837–38 brought devastation and drastic depopulation among the Plains Indians. By 1832, the federal government established a smallpox vaccination program for Native Americans ("The Indian Vaccination Act of 1832"). It was
Chinese Americans any city proper (522,619), while the Los Angeles County city of Monterey Park has the highest percentage of Chinese Americans of any municipality, at 43.7% of its population, or 24,758 people. The states with the largest estimated Chinese American populations, according to both the 2010 Census, were California (1,253,100; 3.4%), New York (577,000; 3.0%), Texas (157,000; 0.6%), New Jersey (134,500; 1.5%), Massachusetts (123,000; 1.9%), Illinois (104,200; 0.8%), Washington (94,200; 1.4%), Pennsylvania (85,000; 0.7%), Maryland (69,400; 1.2%), Virginia (59,800; 0.7%), and Ohio (51,033; 0.5%). The state of Hawaii has the highest concentration of Chinese Americans at 4.0%, or 55,000 people. The