COCOA, Fla.  A year ago, the Brevard County Schools ran a robust summer program here, with dozens of schools bustling with teachers and some 14,000 children practicing multiplication, reading Harry Potter and studying Spanish verbs, all at no cost to parents.

But this year Florida’s budget crisis has gutted summer school. Brevard classrooms are shuttered, and students like 11-year-old Uvenka Jean-Baptiste, whose mother works in a nursing home, are spending their summer days at home, surfing television channels or loitering at a mall.

Nearly every school system in Florida has eviscerated or eliminated summer school this year, and officials are reporting sweeping cuts in states from North Carolina and Delaware to California and Washington. The cuts have come as states across the country are struggling to approve budgets, and California’s governor, Arnold Schwarzenegger, declared a fiscal state of emergency on Wednesday.

“We’re seeing a disturbing trend of districts making huge cuts to summer school; they’re just devastating these programs,” said Ron Fairchild, executive director of the National Center for Summer Learning at Johns Hopkins University. “It’s having a disproportionate impact on low-income families.”