I was a part year resident in NY - Spent 9 months in Queens and 3 months in Yonkers. Now its asking me to allocate my income to Yonkers. How do I do that?

If there is no separation of cities on your w-2, you can take the entire income, divide by 365 (days) and mutiply by the number of days in Yonkers, and the number of days in Queens.

Example: You earned $35,000 all year. Divided by 365 days gives you $95.89 per day. Multiply that amount times the number of days in each location.