Covering 2,381 square kilometres and home to more than 111,000 people, the electoral district of Simcoe North encompasses many municipalities, including Midland, Orillia, Penetanguishene, Tay, Tiny, Severn and the Mnjikaning First Nation.
Elections Canada has defined the Riding boundaries as:
(a) that part of the County of Simcoe comprised of:
(i) the townships of Ramara, Severn, Tay and Tiny;
(ii) the towns of Midland and Penetanguishene;
(iii) Christian Island Indian Reserve No.?30, Christian Island Indian Reserve No.?30A and Mnjikaning First Nation (Rama First Nation) Indian Reserve No.?32;
(iv) that part of the Township of Oro-Medonte lying northeasterly of a line described as follows: commencing at the intersection of the northwesterly limit of said township with 9 Line North; thence southeasterly along said line to Moonstone Road East; thence northeasterly along said road to 9 Line North; thence generally southeasterly along said line to Horseshoe Valley Road East; thence northeasterly along said road to 9 Line North; thence southeasterly along said line, its intermittent production, 9 Line South and its southeasterly production to the southerly limit of said township; and
(b) the City of Orillia.