The village's old church was already standing in the 1600s, but it was in a ruinous state. The locals built a church of sticks and mud. Its place is marked by a cross opposite the town hall. The cemetery, which was destroyed, was located around it. Its place is officially known as Bercsényi Street, but it is still often referred to as Puszta Cemetery in memory of the old churchyard.

Visitors to Koroncó may visit the Roman Catholic church built in 1747 and reconstructed in 1899 in eclectic style. The church is the center of the faith in Koroncó. It is 420 m2 in area. The church's patron saint is Saint Anne.

Statue of Saint John of Nepomuk.