Suburbs in the Shire include: Byford, Cardup, Darling Downs, Hopeland, Jarrahdale, Karrakup, Keysbrook, Mardella, Mundijong, Oakford, Oldbury, Serpentine and Whitby.
Recently declared as one of the top ten family friendly suburbs in the nation, Byford is located to the south east of Perth, originally founded in 1906 as the town of Beenyup.
Today, Byford serves as a retail hub for the Shire of Serpentine Jarrahdale and boasts cafes and restaurants, a tavern, grocery stores and specialty shops.
Serving as a stop on the Australind to Perth rail line, Mundijong features a post office, supermarket, tavern and a food provider. Mundijong will also be the location for a new regional Police Station, which is currently being developed.
Jarrahdale continues to be a landmark locality for the community. Established in the 1800's, Jarrahdale was the site for the first major timber milling operation in Western Australia.
Home to the picturesque Serpentine Dam and Serpentine Falls, this locality is nestled in the heart of Serpentine Jarrahdale.
Keysbrook was first established as a railway siding on the South Western Railway in 1897, and is believed to have been named after Charles Key (1847–1885), who leased land in the area.
Keysbrook continues to provide some of the best farming land in Western Australia.