Diocese of Joliet in Illinois
Iolietten(sis) in Illinois
Suffragan diocese · Latin Church · Joliet, Illinois, United States
The Diocese of Joliet in Illinois is a Latin Church diocese covering seven counties in northeastern Illinois, erected in 1948. The see is currently vacant, with Bishop Dennis E. Spies serving as Apostolic Administrator after Ronald A. Hicks was named Archbishop of New York in early 2026.
The see
- Rank
- Suffragan diocese
- Tradition
- Latin Church
- Erected
- 11 December 1948
- Latin
- Iolietten(sis) in Illinois
- Patron
- St. Francis Xavier
- Annuario code
- 001001752
The see in figures
- Catholics
- 520,148
- Population
- 1,961,747
- Catholic shareof the people living within its bounds
- 26.5%
- Priests
- 267
- Catholics per priest
- 1,948
- Extent
- 10,925 km²
- Catholics per km²
- 48
Figures as recorded in the register, from the Annuario Pontificio and the see's own published statements. Shares and ratios are computed from the two figures shown beside them.
The bishop
- Apostolic Administrator
- Dennis E. Spies (Apostolic Administrator)
- Born
- 5 March 1968
- Birthplace
- Clifton
A see whose chair stands empty is recorded as vacant rather than filled with a guess. On what a bishop is, see the bishop.
The cathedral
Cathedral of St. Raymond Nonnatus stands in Joliet, the church that holds the cathedra from which this see takes its name.
On what a cathedral is, see the cathedral; every see church on earth is gathered at the cathedrals.
The province of Chicago
A suffragan of Archdiocese of Chicago.
The sees of this province:
- Archdiocese of ChicagoChicago
- Diocese of BellevilleBelleville
- Diocese of PeoriaPeoria
- Diocese of RockfordRockford
- Diocese of Springfield in IllinoisSpringfield
On how the Church is ordered into provinces, see the diocese.
Catholic Intelligence
Get early access
We are indexing the whole visible Church: every diocese and parish on earth, searchable and mapped, with Mass times, clergy, and diocesan contacts. Launching soon. Sign up to be first in when it opens, starting with [object Object].
One email at launch. Nothing else.
Already have access? Sign inSources
The see's own website · Wikipedia
Compiled from the published statements of the see and the references of the Holy See, among them the Annuario Pontificio. Corrections: hello@catholicintelligence.com.