Officer is a satellite suburb of Melbourne, 54 km south-east of Melbourne's Central Business District, located within the Shire of Cardinia. Officer recorded a population of 7,133 at the 2016 Census.
Officer serves as the Council seat of the shire. The suburb is currently under major residential development, with the population number likely to be exponentially higher today.
The suburb is named after the Officer family, who were early settlers in the area.
On 17 November 2014, the Shire of Cardinia moved from its offices in Pakenham to a new office in Officer, making it the Council seat.
Officer is in the south east growth corridor, with many new schools opening in the past ten years. There are now eleven schools in the area; Berwick Grammar School, Glenvale School, Heritage College, Maranatha Christian School (Officer campus), Minaret Islamic College (Officer campus), Officer Primary School, Officer Secondary College, Officer Specialist School, St Brigid's Catholic Primary School, St Clare's Catholic Primary School and St. Francis Xavier College (Officer Campus) are located in Officer.
With its own railway station, and most of the land around Officer is currently being developed for residential use with medium density housing. Population and demographic mixes are changing, with construction of a 4,000 lot housing estate to be completed in late 2019. Current estates include: Timbertop, Arcadia, Kaduna Park, Savannah, Grandvue and The Rise.
The major shopping precinct is Arena Shopping Centre which is also host to gymnasium facilities. As a newly developed area Officer also has access to the Australian NBN service which has much larger capability for increased network performances.
There are various facilities in Officer for recreation. There are two lighted AFL sporting grounds which also support cricket. There are presently 5 recreational parks for walking and children's playgrounds. Popular also is the venue "Club Officer" which includes family dining, a sports bar and pokies facilities.