Staten Island's Hispanic population was 17.3% as of the 2010 census. While Hispanics can be found in most Staten Island neighborhoods, their concentrations were highest north of the Staten Island Expressway. Roughly half of Staten Island's Hispanics were of Puerto Rican descent. However, the majority of the Hispanics residing in the Port Richmond area were Mexican:  There were 2 census tracts with a Hispanic majority. Census tract 207 in northern Port Richmond was 53% Hispanic, and census tract 133.02 in northern West Brighton was 51% Hispanic. Census tract 213 in Port Richmond was 45% Hispanic, though the Hispanic percentage was brought down due to the area east of Port Richmond Avenue being majority White (though with a noticeable Hispanic presence). Other neighborhoods with a large Hispanic population include Mariners' Harbor, Arlington, Elm Park, Graniteville, New Brighton, St. George, Ward Hill, Stapleton, Park Hill, and Rosebank. Hispanics were the fastest growing ethnic group on Staten Island. The Hispanic population has increased 51% between the 2000 & 2010 census. Staten Island has the lowest percentage of Black residents as of the 2010 census, at only 9.5%. Most African Americans reside north of the Staten Island Expressway. The only census tracts to had a Black majority were tracts 319.01, 319.02, and 133.01. Tract 133.01 is the West Brighton Houses (though a few residential homes along Alaska Street were also included), and census tracts 319.01 & 319.02 were in the western portion of Mariners' Harbor (Tract 319.02 was often referred to as Arlington). Back in 2000, tracts 4 & 29 in Park Hill/Stapleton had a Black majority, but that was no longer the case, due to an increasing Hispanic and Asian population in the area. Some other areas had a noticeable Black presence, although Blacks do not make up the majority (or even a plurality in most cases). These neighborhoods include Mariners' Harbor, Elm Park, Port Richmond, West New Brighton, New Brighton, St. George, Tompkinsville, Stapleton, Ward Hill, Park Hill & Sandy Ground as well as a growing population in Graniteville. While many African Americans living on Staten Island were descendants of Southern-born migrants of The Great Migration, a small contingent of free African Americans settled in Sandy Ground in the 1830s. Aside from this, others were American-born transplants from other boroughs and Southern and Midwestern states. Others were immigrants, or descendants of immigrants, from West Africa and the Caribbean.