Jaren is the administrative centre of Gran Municipality in Innlandet county, Norway. The village is located about 55 kilometres (34 mi) to the northwest of the capital city of Oslo. The lake Randsfjorden (Norway's fourth largest lake) lies about 7 kilometres (4.3 mi) west of Jaren. The village of Brandbu lies about 3 kilometres (1.9 mi) to the northwest and the villages of Ringstad and Gran lie about 4 kilometres (2.5 mi) to the southeast.