State education officials say Connecticut's high school graduation rate improved in 2010, but nearly 1 in 5 students failed to complete high school within four years.
The state Department of Education released a report Thursday showing that 18.2 percent of students failed to finish high school in four years, down from 20.7 percent in 2009. But whites and Asians continued to graduate at higher rates than black, Hispanic and low-income students.
Four-year graduation rates for whites and Asians were nearly 89 percent last year. The same rates for blacks, Hispanics and low-income students were 69 percent, 64 percent and 63 percent, respectively.
The report also showed suburban schools had much higher graduation rates than urban ones.
State Education Commissioner Stefan Pryor wants to redouble efforts to improve the graduation rates.