This riding is centred on the villages of Streetsville and Meadowvale.

Mississauga—Streetsville is one of the most affluent ridings in Ontario, along with Mississauga—Erin Mills and Mississauga—Lakeshore.

Ethnic groups: 40.1% White, 25.3% South Asian, 6.4% Black, 6.3% Chinese, 5.5% Arab, 5.2% Filipino, 3.0% Latin American, 1.8% Southeast Asian Languages: 51.7% English, 5.1% Urdu, 3.8% Arabic, 2.6% Spanish, 2.5% Mandarin, 2.4% Tagalog, 2.2% Polish, 2.1% Punjabi, 1.8% Portuguese, 1.8% Cantonese, 1.6% Hindi, 1.3% Tamil, 1.1% French, 1.1% Italian, 1.0% Vietnamese Religions: 53.6% Christian (32.7% Catholic, 3.5% Christian Orthodox, 2.6% Anglican, 1.9% United Church, 1.3% Pentecostal, 1.0% Presbyterian, 10.6% other), 15.3% Muslim, 8.8% Hindu, 2.5% Sikh, 1.6% Buddhist, 17.5% no religion Median income: $43,600 (2020) Average income: $57,000 (2020) It was created in 2003 from parts of Brampton West—Mississauga and Mississauga West ridings.

It consists of the part of the City of Mississauga bounded by a line drawn from the northwestern city limit southeast along Mississauga Road, northeast along Highway 401, southeast along Mavis Road, southwest along Britannia Road West, southeast along Terry Fox Way, southwest along Eglinton Avenue West, northwest along Erin Mills Parkway, southwest along Britannia Road West to the southwestern city limit.

This riding lost territory to Mississauga—Malton and Mississauga Centre, and gained territory from Mississauga—Brampton South and a fraction from Halton during the 2012 electoral redistribution.