[2] Ibiraçu was founded in 1877 by a group of 54 families who departed from the Genoa region of northern Italy.

The early settlers of the municipality were affected by the yellow fever outbreak of 1895, which both suspended further settlement of Espírito Santo and killed 41 members.

[4] The capital of this area was first known as Conde D'eu, and was later known by many names such as Bocaiúva (after the proclamation of the republic), Vila Guaraná (after it became a municipality), Pau Gigante in 1892 (meaning giant tree, due to a large tree in the region), and only in 1942 did both the town and municipality gain Ibiraçu as their name.

In recent history it is notable to mention the separation of João Neiva municipality.

The monastery has focused on the reforestation of Morro da Vargem and the restoration of Atlantic Forest (Mata Atlântica) vegetation.