The United States Postal Service operates three post offices near Greenwich Village:  Greenwich Village and SoHo generally have a higher rate of college-educated residents than the rest of the city. The vast majority of residents age 25 and older (84%) have a college education or higher, while 4% have less than a high school education and 12% are high school graduates or have some college education. By contrast, 64% of Manhattan residents and 43% of city residents have a college education or higher. The percentage of Greenwich Village and SoHo students excelling in math rose from 61% in 2000 to 80% in 2011, and reading achievement increased from 66% to 68% during the same time period. Greenwich Village and SoHo's rate of elementary school student absenteeism is lower than the rest of New York City. In Greenwich Village and SoHo, 7% of elementary school students missed twenty or more days per school year, less than the citywide average of 20%. Additionally, 91% of high school students in Greenwich Village and SoHo graduate on time, more than the citywide average of 75%. Greenwich Village residents are zoned to two elementary schools: PS 3, Melser Charrette School, and PS 41, Greenwich Village School. Residents are zoned to Baruch Middle School 104. Residents apply to various New York City high schools. The private Greenwich Village High School was formerly located in the area, but later moved to SoHo. Greenwich Village is home to New York University, which owns large sections of the area and most of the buildings around Washington Square Park. To the north is the campus of The New School, which is housed in several buildings that are considered historical landmarks because of their innovative architecture. New School's Sheila Johnson Design Center doubles as a public art gallery. Cooper Union has been located in the East Village since its founding in 1859. The New York Public Library (NYPL) operates two branches in Greenwich Village. The Jefferson Market Library is located at 425 Avenue of the Americas (Sixth Avenue). The building was a courthouse in the 19th and 20th centuries before being converted into a library in 1967, and it is now a city designated landmark. The Hudson Park branch is located at 66 Leroy Street. The branch is housed in Carnegie library that was built in 1906 and expanded in 1920. Greenwich Village is served by the IND Eighth Avenue Line (), the IND Sixth Avenue Line (), the BMT Canarsie Line (), and the IRT Broadway–Seventh Avenue Line () of the New York City Subway.