The estimated population in Mount Barker as of 2011 census was 14,452, and the Postcodes of this region is 5251. The place is elevated at 360m from the ground level.
The localities which are surrounded by Mount Barker are Hahndorf, Echunga, Macclesfield, Littlehampton, Strathalbyn, Nairne, Callington and Langhorne Creek.
Mount Barker has some renowned tourist spots and heritages sites such as Steam Ranger Heritage Railway, Platform 1 Heritage Farm Railway, Mount Barker Visitor Centre, Adelaide Hills Visitor Information Centre, Laratinga Wetlands etc.
Mount Barker experiences a cooler climate than the capital city with a marginal difference and the temperature in this region hover around 14 deg Celsius. The average rainfall recorded throughout the year is about 766mm, in which the months from June to August receive the most precipitation. However, the temperature remains more or less constant throughout the year, at 18 deg Celsius.