PLEASANTON -- Former Pleasanton planning commissioner Kathy Narum, who cruised to victory in a special election for a vacant city council seat, will be sworn in at the May 21 council meeting.

The Alameda County Registrar of Voters certified the results for the mail-in only election on Friday. Narum finished with 39.6 percent of the vote -- 4,643 total votes -- beating out her closest competitor, high-tech professional David Miller, by nearly 1,500 votes.

Miller received 27 percent of the ballots cast, followed by Olivia Sanwong and Mark Hamilton at 17 and 16 percent respectively. A total of 11,812 Pleasanton residents voted in the election, a turnout of just over 28 percent.

Narum resigned from the planning commission on May 8.

City Clerk Karen Diaz said the city has a pool of applications to use to select replacements for Narum and commission chair Phil Blank, who termed out in April.

Contact Jeremy Thomas at 925-847-2184. Follow him at Twitter.com/jet_bang.