Immaculate Conception Academy, known locally as ICA, was a Catholic girls' high school located in Davenport, Iowa, United States.

It was begun by the Sisters of Charity of the Blessed Virgin Mary (BVM) in 1859 and it remained in operation until it merged with St. Ambrose Academy in 1958 to form Assumption High School.

Father Pelamourges continued to petition the bishop to send Sisters and Brothers to Davenport to open schools.

After Pelamourges returned to France to visit his ailing father in 1852, Antoine LeClaire, who was the principle founder of the city of Davenport, and Judge G.C.R.

Judge Mitchell and his wife offered the Sisters ten acres of land northwest of Davenport to operate an academy for girls.

The following year the offer was accepted[2] and Sister Mary Agnes Hurley, BVM, was given the responsibility for building the new school.

A two-story brick building with a one-story chapel wing was built and the Academy of the Immaculate Conception was opened in 1859.

Terrance Donaghoe, who was the director of the BVM Sisters, was able to purchase the home of banker George Sargent on Brady Street in 1861.

[6] In 1955 it was determined that Davenport should have a central Catholic high school and that Immaculate Conception and St. Ambrose academies would merge.