Rye has two Republicans competing for mayor this year and a mostly Republican city council. Not surprisingly, the GOP has an edge among registered voters. But the breakdown is more mixed than one might think, and Democrats gained more registrations than Republicans over the last two years. Here is the data on active voters in the two major parties as of March 2013:
Republican: 3,644 voters, 36 percent
Democrat: 3,306 voters, 33 percent
Unaffiliated: 2,484 voters, 25 percent
Total number of voters: 10,061
Registrations in 2012 and 2013 have produced 297 new Democrats and 233 Republicans. You can search the New York state voter database at this site.
(Thanks to my colleague Tim Henderson for the data.)