Demar was the fourth planet of the Demar system. It was completely owned by the Lant Mining Corporation and their corporate headquarters were located in the capital city of Janos. The geography mainly consisted of ancient, rocky mountains, long valleys, and wide plateaus. In the equatorial regions the mountains rise up to huge windswept mesas. Cities could be found built in valleys, on the top of plateaus, or into the sides of the mountains themselves. Well marked speederways and air traffic routes connected Demar's cities.
In the western hemisphere there were three smaller continents while in the eastern hemisphere there was one large continent on which most of the cities were located. The hemispheres were separated by the Alto Ocean and the Lant Ocean. Demar's poles were crested by polar ice caps.
Being corporate owned, Demar's economy was very dependent on the fortunes of the LMC. Around the time of the Battle of Yavin unemployment rates had skyrocketed due to a drop in production by the LMC. As a result the spaceports were often packed full of people begging or looking for passage off Demar.