It adjoins Port Kennedy which combines residential with retail and light-industrial land use.

The suburb, which is named after Warnbro Sound, was gazetted on 5 April 1974.

The suburb has sporting facilities including "Aqua Jetty", a multi-purpose recreation facility with Olympic-sized swimming pools and a large gymnasium.

The Vicinity Centres Warnbro Fair Shopping Centre includes supermarkets together with a wide range of specialty retailers and fast-food outlets.

Warnbro railway station on the Perth-Mandurah line is served by a network of feeder bus services which also link the suburb with Rockingham.