Like the rest of France, the second round was initially suspended due to the COVID-19 pandemic.

On 22 May, Prime Minister Édouard Philippe announced that the second round of voting would take place on the 28th of June.

Already weakened during the last elections by losses in Schweighouse-sur-Moder, Vendenheim and Schiltigheim.

The left lost further ground in Erstein, Illkirch-Graffenstaden and Ostwald to the benefit of centrist and unaffiliated candidates.

Even with divisions in her list during the second round of voting, Jeanne Baseghian, the mayoral candidate for Europe Écologie Les Verts, was able to maintain control of Strasbourg for the left.