A report by the nonpartisan Independent Budget Office in New York City has found that the New York City public schools are experiencing extensive overcrowding, even as federal and state funding has diminished.

 

Nearly 450,000 students were enrolled in overcrowded buildings, defined as those at greater than 102.5 percent capacity, in the 2012-13 school year, the most recent covered by the report from the agency, the Independent Budget Office. The average class size is rising, too, particularly in the lower grades: The average elementary and middle school class had 25.5 children, up from 24.6 just two years before. This was true even as the total number of students in traditional and charter schools has hovered around 1.1 million for more than a decade, and as the city has created tens of thousands of new seats. Advocates have fought for years to get the city to use more state aid, known as Contracts for Excellence money, to reduce class sizes. Leonie Haimson, executive director of Class Size Matters, an advocacy group, said the problem of overcrowding persisted for several reasons. First, she said, the city has been in the habit of placing more than one school into the same building — known as co-location — which leads to classrooms’ being converted into administrative offices or specialty spaces. Also, she said, the number of teachers has dropped — a topic the Independent Budget Office report also touched upon. The report said the ranks of general education teachers declined by about 2,300 between 2010 and 2013, but it noted that the number of special education teachers rose by about 1,400 in the same period. Ms. Haimson said more than 330,000 students were in classes of 30 or more last year. “That really shows how extreme the situation has become,” she said.

 

The number of homeless children increased from 66,000 to 77,000. The number of principals soared as former Mayor Michael Bloomberg closed 102 schools and replaced them with 432  small schools, each of which has its own principal and administrative staff.