It is named after the St. Amant family, some of the early settlers in the region.

The area was originally known to the Native Americans and early French settlers as Duckroost, or Cabanocey.

The Saint Amant post office has the ZIP code of 70774.

[1] St. Amant is located near the largest city in Ascension Parish, Gonzales, which is three miles to the north-west.

[9] St. Amant became the subject of national headlines after the 2016 Louisiana Floods, due to the devastation in the area.