The number of charter schools operating in the United States has exploded in recent years. Colorado has around 160 operating this year and eight other states have more than Colorado according to the U.S. News and World Report about this public school choice phenomenon.
California, which has always led the country in the number of charter schools, topped 800+ schools this year. And eleven states continue to hold out without any charter school law at all. The Obama administration is trying to influence states to permit charter schools to flourish by dangling the carrot called "Race to the Top" funds.