Agy is located 4 km south-west of Bayeux and 7 km north-east of Balleroy. The D572 highway from Bayeux to Saint-Lô passes through the eastern edges of the commune. The rest of the commune can be reached on the D207 from Campigny in the north-west passing through the village then continuing south-east to join the D572A which is parallel to the D572. Apart from the village there are three hamlets: La Commune, Les Malcadets, and Aprigny all along the D207 road. The rest of the commune is entirely farmland.
The north-east border of the commune is marked by the Drone river with the southern border marked by the Ponche. In the west is the Vicalet stream flowing north and partly marking the western border.
In 2010, the commune had 240 inhabitants. The evolution of the number of inhabitants is known through 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]
A Castle from the 18th century and a stately mansion from the 16th century has belonged to the same family since 1805 and has been transmitted for several generations of women (Dragon de Gomiécourt / Isoard de Chénerilles / the Poëze of Harambure. A tribute to this family is on the windows of the church of the commune
Church of Saint-Vigor, built in the 19th century.
The Villa of Agy (19th century). Balzac, during his stay in Bayeux, visited the owner, Mrs Hautefeuille "as full of spirit", he wrote, "as the most spiritual Parisian woman".
^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" which allow, after a transitional period running from 2004 to 2008, the annual publication of the legal population of the different French administrative districts. For municipalities with a population greater than 10,000 inhabitants, a sample survey is conducted annually, the entire territory of these municipalities 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.