The commune has been awarded one flower by the National Council of Towns and Villages in Bloom in the Competition of cities and villages in Bloom.

Agnin is located some 25 km south of Vienne and 5 km north-east of Saint-Rambert-d'Albon. It can be accessed by the road D519 from near Chanas in the west passing through the southern part of the commune and continuing to Bouge-Chambalud. Parallel to this road in the north of the commune is the D51 road from Salaise-sur-Sanne in the west passing through the commune and the village and continuing to Anjou in the east. The D131 also comes from the Ville-sous-Anjou in the north joining the D51 west of the village. The Route de Bouge connects the village to the D519 in the south of the commune. The commune is mostly farmland with significant areas of housing in the north and some small areas of forest in the south.

An unnamed stream flows south forming the western border of the commune and another unnamed stream flows through the commune then forms the south-western border. They both join in the south-west and continue flowing west. The Dolon stream forms the southern border of the commune

Like the nearby town of Anjou the origin of the name Agnin comes from the name of a Roman noble Anianus who owned vast territory in that era. The name of the town changed a few centuries later to Agnino which was the name used in the 11th century to describe this commune. Then over the following centuries Agnino became the Agnin known today.

This list is incomplete; you can help by adding missing items. (April 2021)

List of Successive Mayors of Agnin

The inhabitants of the commune are known as Agnitaires in French.

Historical population

Year Pop. ±% p.a. 1800 459 —     1806 609 +4.83% 1821 738 +1.29% 1831 725 −0.18% 1836 696 −0.81% 1841 733 +1.04% 1846 717 −0.44% 1851 705 −0.34% 1856 589 −3.53% 1861 612 +0.77% 1866 588 −0.80% 1872 572 −0.46% 1876 564 −0.35% 1881 565 +0.04% 1886 544 −0.75% 1891 502 −1.59% 1896 512 +0.40% 1901 525 +0.50%	Year Pop. ±% p.a. 1906 536 +0.42% 1911 520 −0.60% 1921 503 −0.33% 1926 432 −3.00% 1931 402 −1.43% 1936 438 +1.73% 1946 457 +0.43% 1954 479 +0.59% 1962 460 −0.50% 1968 462 +0.07% 1975 505 +1.28% 1982 605 +2.61% 1990 648 +0.86% 1999 789 +2.21% 2007 903 +1.70% 2012 1,026 +2.59% 2017 1,106 +1.51%
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Source: EHESS and INSEE

• The portal and tower of Bâtie Manor are registered as historical monuments.
• Gaulas Castle
• A Church from the 12th century
• Typical houses
• Gallo-Roman remains at Golat

• Communes of the Isère department

Wikimedia Commons has media related to Agnin.

• Agnin Official website (in French)
• Agnin on the old IGN website (in French)
• Agnin on the 1750 Cassini Map