Missourians have until Wednesday to register to vote in the Nov. 3 election.

Local election officials across the state will close their registration books at 5 p.m. on Wednesday.

"We have approximately 3.4 million registered voters in Missouri but still have a large number of citizens who are not registered," Secretary of State Bekki Cook said.

Cook said there are another 600,000 Missourians who are eligible to register but haven't done so.

Anyone who will be 18 years of age or older by election day can register. Registration may be done at offices of county clerks or election boards. Address changes may also be made at those offices.

Anyone who is unsure where to register to vote can contact the elections division of the secretary of state's office at 1-800-NOW VOTE.