Bar is located some 40 km north-east of Brive-la-Gaillarde and 8 km north of Tulle. Access to the commune is by the D53 road which branches from the D1120 west of the commune and passes through the narrow neck of the commune before continuing north as the D32 to Orliac-de-Bar. The D53 also continues south from the village through the heart of the commune to Gimel-les-Cascades. The D23 comes from Tulle in the south and passes through the commune and the village continuing north-east to join the D26 near Corrèze. The D173 comes from Le Lonzac in the north down the western arm of the commune and passes south to join the D53 in the commune. Apart from the village there are the hamlets of Cousin Haut and Cousin Bas in the western arm of the commune. The commune is mixed forest and farmland with forests predominant.
The Corrèze river flows from the north-east of the commune forming part of the north-eastern border then continuing west then south through the commune to form part of the southern border before continuing south-west to eventually join the Vézère west of Brive-la-Gaillarde. The Vimbelle river forms the eastern border of the western arm of the commune flowing south to also form the south-western border of the commune before it joins the Corrèze on the southern border of the commune. The Menaude river flows from the north through the commune to join the Vimbelle on the western border. The Ruisseau du Passadour forms the western border of the eastern arm of the commune as it flows south to join the Menaude.
In 2010 the commune had 323 inhabitants. The evolution of the number of inhabitants is known from the population censuses conducted in the commune since 1793. From the 21st century, a census of communes with fewer than 10,000 inhabitants is held every five years, unlike larger communes that have a sample survey every year.[Note 1]
^At the beginning of the 21st century, the methods of identification have been modified by Law No. 2002-276 of 27 February 2002, the so-called "law of local democracy" and in particular Title V "census operations" allows, after a transitional period running from 2004 to 2008, the annual publication of the legal population of the different French administrative districts. For communes with a population greater than 10,000 inhabitants, a sample survey is conducted annually, the entire territory of these communes is taken into account at the end of the period of five years. The first "legal population" after 1999 under this new law came into force on 1 January 2009 and was based on the census of 2006.