In 1901 and 1902, worship services in La Llave were held in the home of the Horst family, and the pastors from Aldea Protestante came to conduct the services. From 1903 to 1905 the congregation was served by Pastor Matthesius of Urdinarrain.
The congregation began construction of a church building in 1907, which was completed in 1909. The parish is affiliated with the Iglesia Evangélica del Río de La Plata (IERP).
There is a Lutheran Church in La Llave that is affiliated with Iglesia Evangélica Luterana Argentina (IELA).
The Iglesia Evangélica Congregacional de villa Eleonora "San Pablo" (St. Paul's Congregational Church of Eleonora), founded in 1924, was originally located 12 kilometers outside of Irazusta. It also served congregants from neighboring villages of Almada, Villa Lila, and Partridges. It was an adobe building with a zinc roof.
In 1931, Lorenzo Hergenrether purchased the property in town for a new bilding which was constructed in 1945. A bell tower was added in 1989.
The Lutheran Church in Irazusta is affiliated with the Iglesia Evangélica del Río de La Plata (IERP).
The Iglesia Evangélica del Río de la Plata (IERP) held its first services in Gualeguaychú in 1932 in the home of the Gasmann family. Pastor Ernst Lang lead the services.
Pastor Jacob Riffel settled in Gualeguaychú in 1944 and services were held regularly thereafter. Initially there were 20 members in the congregation. From 1950-1955, there were three confirmation classes, each held in the home of Alejandro Hermann.
Iglesia Evangélica Luterana San Pablo (St. Paul Lutheran Church) is in Gilbert, Entre Ríos Province. There are many Volga German families in this congregation.
Iglesia Bautista "Eben-Ezer" (Ebenezer Baptist Church), founded in 1894, was the first German-speaking Baptist church in Argentina.
The first church building was constructed in 1909. A new facility was completed in 1965.
Congregación Evangélica Alemana de General Ramírez is a Lutheran congregation, and member of Iglesia Evangélica del Río de la Plata (IERP).
The church in Doll is part of the Iglesia Evangélica del Rio de la Plata (IERP).
San José (Saint Joseph) Catholic Church was constructed in 1893 in the Gothic style. The tower is 49 meters high. The bells and clock were installed in 1916.