It was formed when Équeurdreville and Hainneville merged on 1 January 1965.
Heraldry
The arms of Équeurdreville-Hainneville are blazoned : Per fess 1: Per pale A: Azure, in bend 3 escallops Or and B: Gules, a tower Or; 2: Gules, a 4arched bridge Or issuant from a base engrailed (waves) vert.