Residents are not eager to have a full-scale New York casinos in the five boroughs. And if new casinos are built upstate, most city residents say they would not be interested in visiting.

But a majority of city voters support a ballot measure to allow as many as seven casinos in New York State, according to a New York Times/Siena College poll.

The finding is good news for supporters of expanded gambling in the state, including Gov. Andrew M. Cuomo. New York City is home to about 40 percent of the state’s registered voters, and Election Day turnout in the city is expected to be higher than in many other parts of the state because of the race for mayor, so support for the casino measure in the city would greatly increase the odds of passage statewide.

Debate over the measure, which would amend the State Constitution, has been muted: A coalition of casino supporters, financed by about $3 million primarily donated by gambling interests, has begun airing television commercials in the city and on Long Island. There is little organized opposition.

Read more on New York casinos at the New York Times.