Asnières-en-Bessin is located some 17 km west by north-west of Bayeux, 3 km west of Vierville-sur-Mer, and 4 km north by north-east of Longueville. Access to the commune is by the D194 road from Louvières in the east passing through the north of the commune and the village and continuing west to Cricqueville-en-Bessin. The D198 road goes south from the village through the length of the commune and continues to Aignerville. There is the hamlet of Le Temple just south of the village and Montigny in the south of the commune. The commune is entirely farmland.
The Veret river flows through the centre of the commune from east to west and continues west then north-west to the sea at the Pont du Hable.
In 2010 the commune had 58 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 towns that have a sample survey every year.[Note 1]
Arthur Le Duc (1848-1918), sculptor, was the Mayor of the commune from 1893 to his death in 1918.
Albert Anne (1908-1944), a member of the resistance in the Alliance network, (A resistance network in the interior of France during the Second World War) he was arrested by the Gestapo on 5 May 1944 at Asnières-en-Bessin, where he had used his skills as a forger, and he was executed at Caen jail on 6 June 1944.
^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 in 1 January 2009 and was based on the census of 2006.