The decision to hold the election June 9 comes a week after the issue was last discussed with the commission.
Last week, Finamore went over with commissioners the details of a bill recently passed in the Legislature that allows racetrack counties to have table games that include roulette, blackjack and craps.
Finamore said Thursday that the track will pay for the cost of the special election, and Jefferson County Clerk Jennifer Maghan said her office will offer early voting from May 18 to June 6. There will be no early voting on Saturdays or on Memorial Day, Maghan said.
Maghan said she does not know how much the election will cost because she is working on details with track officials.
"It's just a yes or no ballot," Maghan said.
Although the commission voted for the election, Commission President Frances Morgan said she wanted to make sure that June 9 gives people who are opposed to the casino table games time to prepare for the election.
Finamore reiterated what he said last week that track officials have been conducting a telephone poll of county residents asking them about casino table games. The results of the poll have been supportive of table games, Finamore said.
Tracks in the state have said they wanted to have table games to remain competitive with gambling operations in other states. If Jefferson County voters allow table games at Charles Town Races & Slots, the games would join about 4,200 slot machines at the track.
Jefferson County government and the county's five towns are expected to enjoy about $8 million a year in slot machine revenue this year from the track, and the addition of table games at the track would increase that revenue stream by about $850,000 a year, according to Lottery Commission projections.
The track probably would start with 75 gaming tables, which would generate about 500 more jobs at the track, which currently employs 1,300 people, Finamore said.
Current track employees would be given the first opportunity to apply for table game jobs, and the track would set up a "dealers school" to train workers to run the games, Finamore said.