
Indiana is not as Catholic as states like New York or New Mexico, but the religion still has a strong presence in the state. As of 2020, Catholics comprised approximately 10% of Marion County's population and almost a quarter of county church membership. In recent years, the Catholic Church in Indiana has been bolstered by a new wave of immigrants from Latin America, which has helped to counter the decline in whites of European descent.
| Characteristics | Values |
|---|---|
| Percentage of Catholics in Indiana | 16% |
| Percentage of Catholics in Marion County | 10% |
| Indiana's Religious Landscape | No singularly dominant faith group |
| Recent Trends | Decline in membership, counteracted by new waves of Latin American immigrants |
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What You'll Learn

Catholic immigrants from Latin America
Indiana does not have a singularly dominant faith group, and while it is nowhere near as Catholic as states like New York or New Mexico, Catholicism still has a strong presence in the state. The Catholic Church in Indiana has been bolstered by a new wave of immigrants from Latin America, which has helped to counter the decline in membership among whites of European descent. Indiana's foreign-born population comprises 42% from Latin America and 35% from Asia, with 31% of the most recent entrants being from Latin America.
Historically, Catholicism in Indiana arrived with European immigrants, particularly in northwestern Indiana and along the Ohio River. The first Catholics in Indianapolis were Irish canal workers and labourers and German artisans who arrived in the early 1830s. At that time, the Diocese of Vincennes was the only Catholic diocese in Indiana. The first parish in the city was Holy Cross, later renamed St. John the Evangelist, located on Washington Street.
In recent years, the Catholic Church in the United States has experienced a decline in membership. However, immigration trends have led to a shift in the geographic distribution of Catholics, with southern and western states seeing large increases in Catholic adherents. Nearly half of foreign-born Catholics in the U.S. are immigrants from Latin America, and their religious affiliation provides a sense of community and a strong social network. Additionally, the relatively high fertility rates among Latino women have also contributed to the growth of the Catholic population, especially in younger age groups.
While Indiana has seen an overall decline in religious affiliation, with a higher-than-average share of the population identifying as "unaffiliated", the influx of Catholic immigrants from Latin America has helped to bolster the Catholic Church's presence in the state and counter the decline in membership among those of European descent. This trend reflects the broader resilience of the Catholic Church in the United States, which remains the single largest religious group in the country, with 62 million adherents.
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Catholicism in Marion County
Catholicism in Indiana has a long history, with the state's first Catholics being Irish canal workers and labourers, as well as German artisans, who arrived in the early 1830s. The Diocese of Vincennes, the only Catholic diocese in Indiana at the time, saw priests like Claude François, Michael Shawe, and Vincent Bacquelin celebrating Mass in private homes or rented halls in Indianapolis until 1840. The first parish in the city, Holy Cross, was later renamed St. John the Evangelist and was located on Washington Street.
In Marion County, Catholicism has had a significant presence as well. As of 2020, Catholics made up about 10% of the county's population, the largest of any Christian denomination, and almost a quarter of county church membership. The county had 26 Catholic parishes and 6 high schools following World War II, with the number of Catholic residents more than doubling from 44,000 in 1940 to 92,000 in 1960.
The establishment of Catholic institutions, such as Catholic Charities in 1919 and Marian University in 1937, further solidified the presence of Catholicism in Marion County. The construction of parishes and schools for specific ethnic groups, including Slovenes, Italians, and African Americans, also contributed to the growth of Catholicism in the county.
The history of Catholicism in Marion County has also faced challenges, such as the threat posed by the Ku Klux Klan in the 1920s. However, the Notre Dame football team, known as the "Fighting Irish," played a significant role in combating anti-Catholic sentiment and showcasing the patriotism of many Irish immigrants and proud Catholics.
Today, Catholicism in Marion County continues to evolve, with a diverse range of parishes and Catholic schools serving the community.
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The first Catholics in Indiana
Indiana's first Catholics were French Jesuit missionaries who arrived in Vincennes around 1675. The first Catholic church in the region, Saint Francis Xavier, was established around 1732. The first resident priest, Reverend Sebastian Louis Meurin, arrived in May 1748.
In the early 1800s, the Catholic population in Indiana continued to grow, particularly with the arrival of Irish canal workers, labourers, and German artisans in the early 1830s. During this time, the Diocese of Vincennes, established in 1834, was the only Catholic diocese in Indiana. Priests like Claude François, Michael Shawe, and Vincent Bacquelin travelled to Indianapolis to celebrate Mass in private homes or rented halls. The first parish in the city was Holy Cross, later renamed St. John the Evangelist, located near the present Eiteljorg Museum of American Indians and Western Art.
As the Catholic population expanded, new parishes were established, including St. Patrick (1865), St. Joseph (1873), and Sacred Heart (1875). The growing diversity of the Catholic community is reflected in the establishment of St. Mary's Church by Germans in 1858, who preferred the services of a priest who could preach in their native language.
The development of Catholic institutions in Indiana continued with the opening of Marian University, a Catholic institution of higher learning, in 1937. The designation of Indiana as an ecclesiastical province and the elevation of the diocese to an archdiocese in 1944 further solidified the presence of Catholicism in the state.
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Catholic presence in Indiana
Indiana does not have a singularly dominant faith group, but Catholicism still has a strong presence in the state. As of 2020, Catholics comprised approximately 10% of Marion County's population and almost a quarter of the county's church membership.
Historically, Catholicism arrived in Indiana with European immigrants, particularly in northwestern Indiana and along the Ohio River. The first Catholics in Indianapolis were Irish canal workers and labourers and German artisans who arrived in the early 1830s. The first parish in the city was Holy Cross, later renamed St. John the Evangelist, located on Washington Street. In 1834, the Diocese of Vincennes became the only Catholic diocese in Indiana, with its bishops residing in Vincennes. In 1878, Bishop Francis Silas Chatard, the first American-born bishop of the diocese, took up residence in Indianapolis, which had become the state's largest urban area. Chatard lobbied the Vatican to move the see city from Vincennes to Indianapolis, envisioning a downtown parish away from the commercial areas of the expanding city. In 1890, he purchased land on 14th and Meridian streets for the episcopal residence and the adjoining chapel for SS. Peter and Paul. In 1898, the Diocese of Vincennes was officially changed to the Diocese of Indianapolis.
In the 20th century, the Catholic Church in Indiana experienced a decline in membership, particularly among whites of European descent. However, this decline has been countered by a new wave of immigrants from Latin America. By 1970, Indianapolis had 11 Catholic high schools, and the city has had several Catholic mayors, including Albert G. Feeney (1948-1950), Phillip L. Bayt (1950-1951, 1956-1959), and John J. Barton (1964-1967). Today, the Catholic Church continues to have a presence in Indiana, with parishes, schools, and other institutions serving the Catholic population in the state.
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Comparison with other states
Indiana is nowhere near as Catholic as states like New York or New Mexico, but the religion still has a strong presence in the state. As of 2020, Catholics comprised approximately 10% of Marion County's population and almost a quarter of county church membership.
In Indiana, there is no singularly dominant faith group. While evangelicals represent the largest segment of the faith spectrum in the state, Indiana has the same percentage of evangelicals as Texas. Indiana has a higher percentage of evangelicals than any other Northern state.
In terms of religious landscape, Indiana is comparable to Massachusetts, where Catholics are the dominant faith, and Utah, where Mormons are the dominant faith. In these states, people are less likely to identify as having no religion.
In contrast, Indiana's religious landscape is distinct from that of southern states, where evangelicals are more dominant.
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Frequently asked questions
As of 2015, around 16% of Indiana's population identified as Catholic.
No, there is no singularly dominant faith group in Indiana. However, Catholicism has a strong presence in the state.
Indiana is not as Catholic as states like New York or New Mexico.
As of 2020, Catholics comprised approximately 10% of Marion County's population.
A new wave of immigrants from Latin America has helped to buoy the Catholic Church in Indiana.











































