The elected members are the mayors of each of its nine municipalities (Aurora, East Gwillimbury, Georgina, King, Newmarket, Markham, Richmond Hill, Vaughan, and Whitchurch-Stouffville), as well as an additional eleven Regional Councillors from the more populous municipalities—four from Markham, three from Vaughan, two from Richmond Hill and one each from Georgina and Newmarket.
[2] The Regional Chair & CEO is currently Eric Jolliffe, who was appointed in December 2024 and took office on January 1, 2025.
York Regional Council main operations are located at 17250 Yonge Street in Newmarket.
The administration offices were located at 62 Bayview Parkway, which was built from 1954 to 1957 for York County[12] and used by the region from 1971 to 1994.
A new 8 storey glass annex by WZMH Architects[14] has been built to consolidate several rented facilities and also to house the Newmarket Courthouse.