From stateline.org:
By handing over the reins of government to Republicans in many states last week, voters ensured that GOP leaders there will have almost no opposition from Democrats as they look to cut state budgets and jumpstart an anemic economic recovery. Even as divided government makes a comeback in Washington, D.C., it has become rarer in state governments. In 20 states, Republicans now control government at all levels, having won both legislative houses as well as the governor’s office. Before the election, they had total control in only nine. Meanwhile, the number of states controlled by Democrats dropped from 15 to 10, a stunning reversal. Three states, Washington, Oregon and New York, are still awaiting final results.
Two states, Maine and Wisconsin, flipped outright, going from being controlled entirely by Democrats to being controlled entirely by Republicans. No more than six states are likely to have split legislatures, with one party controlling one chamber and the opposite party running the other. The last time there were nearly that few split legislatures was 1982, when eight were split, according to the National Conference of State Legislatures.