Cut Off had its start by the building of a canal cutoff at that point from Bayou Lafourche northeast to Lake Salvador, to shorten the route to New Orleans.

[5] As of the 2020 United States census, there were 5,533 people, 2,375 households, and 1,711 families residing in the CDP.

The United States Postal Service operates the Cut Off Post Office.

Larose-Cut Off Middle School is in nearby Larose,[11] and serves Cut Off CDP.

[15][16] Damage from Hurricane Ida meant that the parish had to rebuild the inside of the library.