The Diocese of Springfield in Illinois (Latin: Diœcesis Campifontis in Illinois) is a Latin Church ecclesiastical territory, or diocese, of the Catholic Church in south central Illinois in the United States. The mother church is the Cathedral of the Immaculate Conception in Springfield.

The Diocese of Springfield in Illinois is a suffragan diocese in the ecclesiastical province of the metropolitan Archdiocese of Chicago. On April 20, 2010, Pope Benedict XVI named Thomas J. Paprocki as the ninth bishop of Springfield in Illinois.

The Diocese of Springfield in Illinois comprises the following counties:

Adams, Bond, Brown, Calhoun, Cass, Christian, Clark, Coles, Crawford, Cumberland, Douglas, Edgar, Effingham, Fayette, Greene, Jasper, Jersey, Macon, Macoupin, Madison, Menard, Moultrie, Montgomery, Morgan, Pike, Sangamon, Scott, and Shelby.

The counties are organized into five deaneries: Alton, Jerseyville, Mattoon, Quincy and Springfield. There are currently 129 parishes in the diocese. It is home to 14 religious houses. The diocese operates campus ministry centers at the following institutions:

• Blackburn College in Carlinville
• Eastern Illinois University in Charleston
• Illinois College in Jacksonville
• Millikin University in Decatur
• Southern Illinois University Edwardsville in Edwardsville
• University of Illinois Springfield in Springfield

During the 17th century, present day Illinois was part of the French colony of New France. The Diocese of Quebec, which had jurisdiction over the colony, sent numerous French missionaries to the region. It was estimated that 15,000 to 20,000 Native American converts and French trappers and settlers throughout the Illinois region were tended to by these Jesuit missionaries.

After the British took control of New France in 1763, the Archdiocese of Quebec retained jurisdiction over missions in the Illinois area. However, most of the French Catholics in the area migrated to Louisiana. In 1776, the newly declared United States claimed sovereignty over Illinois and the rest of the Midwest region.

After the American Revolution ended in 1783, Pope Pius VI erected in 1784 the Prefecture Apostolic of the United States, encompassing the entire territory of the new nation. In 1785, Bishop John Carroll sent his first missionary to Illinois. In 1787, the area became part of the Northwest Territory of the United States. Pius VI created the Diocese of Baltimore, the first diocese in the United States, to replace the prefecture apostolic in 1789.

With the creation of the Diocese of Bardstown in Kentucky in 1810, supervision of the Illinois missions shifted there. Catholic Irish and German immigrants started entering the Illinois region in the early 1800s. In 1827, the Diocese of St. Louis assumed jurisdiction over the western half of Illinois. In 1834, the Vatican erected the Diocese of Vincennes, which included both Indiana and eastern Illinois. The first Catholic church in Quincy, St. Peter's was opened in 1839 and the first church in Alton in 1843.

A group of Springfield Catholics in 1840 petitioned the Vatican to establish a diocese in their city, but it was denied. Instead, the Vatican created the Diocese of Chicago in 1843, with all of the Illinois territory taken from the Dioceses of St. Louis and Vincennes. In 1848, the first Catholic church in Springfield, St. John the Baptist, was constructed.

On July 29, 1853, Pope Pius IX erected the Diocese of Quincy, based in Alton, taking its territory from the Diocese of Chicago. He appointed Joseph Melcher of St. Louis to serve as bishop, both in Quincy and Chicago. However, Melcher refused the appointment. The pope did not appoint another bishop for Quincy.

Four years later in 1857, Pius IX suppressed the Diocese of Quincy and erected the new Diocese of Alton, keeping the same boundaries. He appointed Henry Juncker as the first bishop of Alton. At the time of Juncker's arrival, the diocese contained 58 churches, 30 mission stations, 18 priests, and 50,000 Catholics. Needing more priests, he traveled to Europe in 1857 to recruit them from France, Germany, Ireland and Italy for his diocese. The first Catholic church in Decatur, St. Patrick, opened in 1857.

Juncker completed the first cathedral in the diocese in 1859. He later founded six girls' academies, a seminary, two hospitals, and one orphanage. During one stay in Randolph County, a delegation from Red Bud, Illinois, asked Juncker to visit them. The townspeople said they had never seen a priest there. During his visit to Red Bud, Juncker heard confession from 1,000 Catholics and received a donation of land from a Protestant businessman for a new church. In 1860, the Franciscans opened St. Francis Solanus College in Quincy.

When the American Civil War started in 1861, Juncker asked his parishioners to pray for peace. When the Union Army opened a medical camp for wounded soldiers in Cairo, Illinois, he sent priests and nuns there to provide support.

Juncker died in 1868. By the time of his death, the Diocese of Alton had 125 churches, over 100 priests, and 80,000 Catholics.

Pius IX appointed Peter Baltes of the Diocese of Chicago as the second bishop of Alton in 1869. Baltes quickly instituted a constitution that outlined practices with all the parishes. Baltes issued a pastoral letter in 1879 that banned Catholics in his diocese from reading newspapers or journals that criticized the Catholic Church. He banned contemporary music from church services, replacing it with the Gregorian chant and Cecilian music. By the end of his tenure, the diocese included 109,000 Catholics, 177 priests, 126 parishes and 77 missions, 13 hospitals, three orphanages, two homes for the elderly, two men's colleges, a boys' high school, nine girls' academies, and 102 parochial schools with 11,000 students.

In January 1884, 27 nuns died in a fire at the Convent of the Sisters of Notre Dame in Belleville. Baltes attended the funeral mass there, but was too sick to celebrate it.

After Baltes died in 1886, Pope Leo XIII appointed James Ryan from the Diocese of Peoria as the third bishop of Alton. During his 35-year tenure, Ryan established 40 new churches and six hospitals; the Catholic population of the diocese increased from 70,000 to over 87,000. He held the first diocesan synod in February 1889.

After James Ryan died in 1923, Pope Pius IX dissolved the Diocese of Alton and erected the Diocese of Springfield in Illinois in its place on October 26, 1923. He appointed James Griffin of Chicago as the first bishop of the new diocese. Griffin dedicated the new Cathedral of the Immaculate Conception in Springfield in 1928. During his tenure as bishop, Griffin erected 51 new churches, schools, convents and charitable institutions; the total cost spent in his first ten years was close to $6.5 million. He established Marquette Catholic High School in Alton and Springfield Junior College in Springfield. Griffin died in 1948.

Pope Pius XII in 1948 appointed William O'Connor from Chicago as the second bishop of Springfield. O'Connor instituted the Confraternity of Christian Doctrine in 1950, initiated the diocesan development fund in 1952 for missionary work within the diocese, and founded the diocesan Latin School in 1954 for training young men preparing to enter the priesthood. He held diocesan synods in 1953 and 1963. After 27 years as bishop, O'Connor died in 1975.

The next bishop of Springfield was Bishop Joseph McNicholas, an auxiliary bishop of the Archdiocese of St. Louis, appointed by Pope Paul VI in 1975. He hosted the first Midwest Regional Meeting of the St. Vincent de Paul Society to be held in downstate Illinois, and in 1978 appointed the first nun to the position of superintendent of Catholic schools. He also renamed the diocesan newspaper as Time and Eternity.

After McNicholas' death in 1983, Pope John Paul II named Bishop Daniel L. Ryan, auxiliary bishop of the Diocese of Joliet, as his successor. Ryan resigned in 1999.

In 1999, Pope John Paul II appointed George Lucas of St. Louis as bishop of Springfield in Illinois. In 2001, Lucas established a diaconate formation program for the diocese. The five-year program prepared men to become deacons was run by the diocesan Office for the Diaconate, in cooperation with Quincy University in Quincy. On June 24, 2007, Lucas ordained the first class of eighteen men.

In January 2002, Lucas launched an endowment/capital campaign called Harvest of Thanks, Springtime of Hope. The program raised over $22.1 million, used to support Catholic education, Catholic Charities, the formation of seminarians and deacon candidates, and the care of retired priests. Lucas spearheaded the Built in Faith campaign to raise the $11 million needed to restore the Cathedral of the Immaculate Conception. Lucas attended the cathedral dedication on December 2, 2009.

In 2009, Pope Benedict XVI named Lucas as archbishop of the Archdiocese of Omaha and appointed Bishop Thomas Paprocki, auxiliary bishop of Chicago, as Lucas' replacement.

Paprocki invited the Norbertines from St. Michael's Abbey in California to establish a community in the diocese. The Norbertines established the Corpus Christi Priory on July 1, 2023, to be the home of the Evermode Institute.

In 1985, after receiving complaints from a parishioners, police arrested Alvin J. Campbell, pastor of St. Maurice Church in Morrisonville on charges of sexually abusing a minor. Campbell had served in the US Army Chaplain Corps during the 1960s and early 1970s. When he applied to enter the Diocese of Springfield in Illinois in 1977, an Army official warned the diocese that Campbell had a moral problem with men and boys. Later in 1985, Campbell pleaded guilty but mentally ill to having sexually abused seven teenage boys between 1982 and 1985. He was sentenced to 14 years in prison. Removed from ministry in 1985, Campbell was laicized in 1992.

Walter Weerts pleaded guilty in 1986 to three counts of sexual abuse. Weerts would fly boys in his private plane and take them to his apartment in Granite City, where he would rape them. Facing parent complaints about Weets starting in the 1960s, the diocese covered up his crimes and transfer him to different parishes. Before Weerts' sentence, Bishop Ryan asked the court to grant him probation, attesting to his fine behavior. Weerts was sentenced to six years in prison and was laicized by the Vatican in 1989. Weerts later got a degree from New Mexico State University, then moved to South Florida, taking a position at Palm Beach Community College (now Palm Beach State College) teaching horticulture, and teaching at a local high school as part of his duties with the community college, as well as giving horticultural lectures to middle schools in the area. School officials stated that Weerts denied being convicted of a crime on his application and were not made aware of his conviction when they called references, including the Dioscese. It was only in 1998 that the school was made aware of the conviction after students uncovered his past. There was also a concern he continued abusing children because during the school's investigation, several students stated they used Weerts as a babysitter, and it was discovered that a 10-year old boy was living with Weerts. Weerts fled the state in late 1998 shortly after his past was uncovered.

In 1999, Matthew McCormick sued the diocese, claiming that Alvin Campbell had abused him as an altar boy from 1982 to 1985. McCormick said that Ryan and the diocese did nothing to protect him. He also claimed that Ryan himself was guilty of numerous sexual affairs with male prostitutes and priests, creating a poisoned atmosphere. Ryan denied the charges.

In a 2002 Joliet Herald-News article, an unidentified priest from the Diocese of Joliet said that Ryan made sexual advances against him when the two men were staying at a hotel at an out of town parish in 1982. In August 2002, the diocese received allegations that Ryan had solicited sex from four boys in 1984. One of the alleged victims, Frank Sigretto, said that Ryan picked him up from the street and offered him $50 for a massage. During the massage, Ryan made sexual advances to the 15-year-old boy. The diocese referred its case to the Sangamon County, Illinois district attorney; however, the district attorney could not prosecute Ryan because the statute of limitations had expired.

Having continued to confer confirmation and celebrate mass after his resignation as bishop in 1999, Ryan agreed in 2004 to suspend his public ministry. In 2006, an independent investigative report was commissioned by Bishop Lucas. In its report, the Special Panel on Clergy Misconduct declared that Ryan "engaged in improper sexual conduct and used his office to conceal his activities". Ryan also fostered "a culture of secrecy...that discouraged faithful priests from coming forward with information about misconduct" by other clergy in the diocese.

In a video interview taped in 2004, Thomas Munoz accused Bishop Lucas, when he was a priest, of having sex with several priests and seminarians in a so-called orgy. Lucas denied all the allegations. The diocese investigated the allegations and in 2006 declared them to be totally false. The same allegations were raised again in 2021 in a lawsuit by Anthony J. Gorgia, a former seminarian, against the Pontifical North American College in Rome and the Archdiocese of New York.

In July 2004, Lucas approved a $1.2 million settlement to eight men who had been sexually abused as minors by Walter Weerts.

On May 23, 2023, the Illinois Attorney General released a report on Catholic clergy child sex abuse in Illinois. The multi-year investigation found that more than 450 Catholic clergy in Illinois abused nearly 2,000 children since 1950.

As of 2023:

• 123,706 Catholics
• 129 parishes
• 72 diocesan priests (active and retired)
• 35 religious priests
• 14 religious brothers
• 395 women religious
• 54 Permanent deacons

As of 2007:

• 151,601 Catholics
• 132 parishes
• 87 active priests; 62 religious institute priests
• 122 diocesan priests (including retired and serving outside the diocese)
• 6 Catholic hospitals

Joseph Melcher (Appointed 1853; did not take effect); appointed Bishop of Green Bay

1. Henry Damian Juncker (1857-1868)
2. Peter Joseph Baltes (1870-1886)
3. James Ryan (1888-1923)

1. James Aloysius Griffin (1923-1948)
2. William Aloysius O'Connor (1948-1975)
3. Joseph Alphonse McNicholas (1975-1983)
4. Daniel L. Ryan (1983-1999)
5. George J. Lucas (1999-2009), appointed Archbishop of Omaha
6. Thomas J. Paprocki (2010–present)

• John Janssen, appointed Bishop of Belleville on 28 Feb 1888
• John Baptist Franz, appointed Bishop of Dodge City on 27 May 1951 and later Bishop of Peoria on 8 Aug 1959
• Victor Hermann Balke, appointed Bishop of Crookston on 7 Jul 1976
• Kevin Vann, appointed Coadjutor Bishop and Bishop of Fort Worth on 17 May 2005 and later Bishop of Orange on 21 Sep 2012
• Carl A. Kemme, appointed Bishop of Wichita on 20 Feb 2014

• Father McGivney Catholic High School – Glen Carbon
• Marquette Catholic High School – Alton
• Quincy Notre Dame High School – Quincy
• Routt Catholic High School – Jacksonville
• Sacred Heart-Griffin High School – Springfield
• St. Anthony of Padua High School – Effingham
• St. Teresa High School – Decatur

Quincy University – Quincy.

Coat of arms of Roman Catholic Diocese of Springfield in Illinois

Notes Arms were designed by Pierre de Chaignon la Rose for Bishop Griffin upon the erection of the Diocese Adopted 1923 Escutcheon These arms are composed of a gold field with a blue cross. Each quarter of the cross contains a roundel of alternating blue and silver wavy bars. A roundel of this type is known heraldically as a "fountain." The center of the cross displays a silver crescent. Symbolism As stated by Pierre de Chaignon la Rose, who designed the arms, "The Diocese bears a cross of blue on gold, the old colors of France, in honor of Marquette and Joliet, the first missioners in the region. The heraldic 'fountain' or springs express the name, and the crescent of the Immaculate Conception indicates the dedication of the Cathedral Church."

• Christian Hill Historic District

• Roman Catholic Diocese of Springfield in Illinois Official Site

39°46′59″N 89°39′34″W / 39.78306°N 89.65944°W / 39.78306; -89.65944