It consists of the part of the Scarborough district of the City of Toronto bounded: Notable landmarks in Scarborough Centre include: It was represented in the Ontario Legislature by PC Christina Mitas since 2018, who did not run for re-election in 2022.

It was formed from the south central part of the former riding of York—Scarborough, formed in 1955, the year following the erection of Metropolitan Toronto, departing from York East, where it had been part of since 1867, and represented in the past by such Scarborough Township residents as: With the rapid growth of Scarborough Township in the decade following the erection of Metropolitan Toronto, York—Scarborough, unlike its federal counterpart that remained into the 1970s, was split into four separate ridings in 1963; and MPP Dick Sutton did not seek re-election into any of the new ridings.

The initial Scarborough Centre riding was bordered by: Lawrence Avenue to the north, Kennedy Road to the west, Lake Ontario to the south and Markham Road to the east.

The eastern boundary starting at the lake went north along Kennedy Road to Eglinton Avenue.

The eastern border was moved to Markham Road going from the lake to Lawrence Avenue.