Ward 9 is located in the north west corner of the City of Mississauga. The boundaries are: Erin Mills Parkway on the east, along Eglinton Avenue on the south, north on Winston Churchill to Britannia, west on Britannia to Tenth Line, north on Tenth Line to the CP tracks, then west to Ninth Line and north to the city boundary (Hwy.401 and the Hydro corridor). It consists of the communities of Meadowvale and Central Erin Mills.
The present population is approximately 58,830. Prior to the 2006 municipal elections, Ward 9's population was 110,000. The ward was divided into two wards and the new Ward 10 was created with the communities of Lisgar and Churchill Meadows.
The ward has a mixture of residential and business, with most of the employment located in the Meadowvale Business Park in the north end of the ward.
Ward 9 residents have access to a wide range of recreational facilities and programs. These include the Meadowvale Community Centre. Erin Meadows Community Centre, Meadowvale Library, Erin Meadows Library and Meadowvale Four Rinks. There are numerous trails for cycling and walking throughout Ward 9 with the main ones being Aquitaine, Wabukayne and Millgrove Trail.