The seat covered much of the city's central core, roughly similar to the current riding of Toronto Centre.

At its dissolution it stretched from University Avenue to Parliament Street and from the waterfront north past St. Clair.

Its western boundary starting at Toronto Harbour went north following the line of Simcoe Street.

At Queen Street West it jogged east a block to University Avenue.

The boundary followed Bay Street north from the harbour until it curved northwest to meet Davenport Road.