25 days Oklahoma Policy Institute // August 31, 2020 // Updated: August 31, 2020 Number of the Day The voter registration deadline is 25 days prior to the date of an election. [Source: Oklahoma State Election Board] See previous Numbers of the Day here. Share This: Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Share on LinkedIn (Opens in new window) LinkedIn Share on Tumblr (Opens in new window) Tumblr Share on Reddit (Opens in new window) Reddit Email a link to a friend (Opens in new window) Email Print (Opens in new window) Print ABOUT THE AUTHOR Oklahoma Policy Institute // @okpolicy // [email protected] Oklahoma Policy Insititute (OK Policy) advances equitable and fiscally responsible policies that expand opportunity for all Oklahomans through non-partisan research, analysis, and advocacy.