Idaho election officials identified 333 uncounted ballots from the Pocatello 2 precinct during a post-election review, one week after the midterm election.
The ballots were scheduled to be added Tuesday to the state election results website. Officials said counting them did not change any election outcomes.
Bannock County has 57 precincts. Torey Danner led Wilson Simmons by 4,857 votes in the county coroner race. Democrats won all three seats in Legislative District 29, with leads of about 2,000 votes in two of those races.
Bannock County Clerk Jason Dixon said, “this should not have happened.”
Idaho Secretary of State Phil McGrane said the discovery demonstrated the importance of the post-election reconciliation process used to verify results.
The Bannock County Board of Commissioners was scheduled to recanvass the results, including the added ballots, at 9 a.m. Thursday. The Idaho State Board of Canvassers was scheduled to meet at 1 p.m. Friday to select counties and precincts for election-result audits.
Results remained unofficial until certification by the State Board of Canvassers, which was scheduled to meet Nov. 24.
Latah County also reported more than 2,300 ballots that had not been included in its election results.