DENVER — Nearly 16,000 Coloradans renewed or updated their voter registration on Tuesday, National Voter Registration Day, according to Secretary of State Wayne Williams.

"I’m excited that so many Coloradans updated their registrations or registered on National Voter Registration Day," Williams said in news release. "If you missed it, it’s not too late. Please go to www.govotecolorado.com or text “CO” to “28683” (2VOTE) and make sure you're registered and that your address is correct to ensure your ballot is mailed to you!"

According to the Secretary of State's Office, on Tuesday, 2,749 Coloradans registered to vote, 13,223 updated their voter registration, and 61 people withdrew their registrations. The activity was a five-fold increase over the day before.

The fourth Tuesday of September was designated as National Voter Registration Day in 2012 by the the National Association of Secretaries of State. September is also National Voter Registration Month.

Voters in Colorado must register by October 29 in other to receive a ballot by mail.