Erftstadt (German pronunciation: [ˈɛʁftˌʃtat] ⓘ) is a town located about 20 km south-west of Cologne in the Rhein-Erft-Kreis, state of North Rhine-Westphalia, Germany.

The neighbouring towns are Brühl, Kerpen, Zülpich and Weilerswist.

[3] In green are one silver/white left flank bar and on the right border of the shield two golden/yellow squares.

The yellow squares represent the biggest villages Lechenich and Liblar.

The Realschule "Gottfried-Kinkel-Realschule" and the Gymnasium Ville-Gymnasium are located in Liblar.