The 54 assaults comprised of 21 cases of gunfire and grenade throwing at Islamic buildings and 33 cases of threats, said Abdallah Zekri, a spokesman for the monitoring body at the Central Council of Muslims in France, on Monday.
The figures, which do not include raids in Paris and its suburbs, were provided by the French Interior Ministry, Zekri added.
Shots were fired and three blank grenades were thrown at the mosque shortly after midnight.
This information follows the publication on Twitter of a map with 14 incidents that took place in mosques in France since Wednesday.
It says that attacks include a car belonging to a Muslim family being targeted by gunfire; the gate of a Mosque being tagged with anti-Muslim graffiti; and a teenager being assaulted by a gang after suffering racial abuse.