The Roman Catholic Diocese of Rochester began on March 3, 1868, when Pope Pius IX entrusted eight counties (Monroe, Livingston, Wayne, Ontario, Seneca, Cayuga, Yates, and Tompkins) within the Diocese of Buffalo to Bernard J. McQuaid, the first bishop of Rochester.
The new diocese had about 54,500 Catholics in 35 parish churches and 29 mission churches.

In 1896, the counties of Schuyler, Tioga, Chemung, and Steuben were added to the Diocese of Rochester from the Diocese of Buffalo, forming the current boundaries.

The diocese grew as Catholic immigrants came to western New York, peaking in the 1960s.
Since then, the Catholic population has stabilized while the numbers of ordained presbyters (priests) and religious sisters has fallen.

In 1909, there were 121,000 Catholics in 93 parishes, 36 missions and 53 parish schools with 18,000 pupils.
There were 164 priests and more than 500 sisters.

In 1938, there were 223,657 Catholics in 129 parishes, 36 missions and 72 parish schools serving 23,796 pupils.
There were 289 active diocesan priests.

In 1966, there were 361,790 Catholics in 155 parishes, 36 mission churches and 99 elementary parish schools serving 45,540 pupils.
There were 371 active diocesan priests and 1,549 sisters.

In 1978, there were 358,850 Catholics in 161 parishes, 29 mission churches and 75 schools serving 19,526 pupils.
There were 311 active diocesan priests and 1,095 women religious.

In 1992, there were 361,384 Catholics in 162 parishes and 58 elementary schools serving 11,992 pupils.
There were 208 active diocesan priests and 842 sisters.

On September 22, 2017, the Diocese of Rochester inaugurated its sesquicentennial anniversary marked by a solemn Mass at Sacred Heart Cathedral.
This event marks a year long celebration of the 150 year anniversary and the year of the Eucharist which was proclaimed by Bishop Salvatore Matano on the Feast of Corpus Christi.
The Roman Catholic Diocese of Rochester began on March 3, 1868, when Pope Pius IX entrusted eight counties (Monroe, Livingston, Wayne, Ontario, Seneca, Cayuga, Yates, and Tompkins) within the Diocese of Buffalo to Bernard J. McQuaid, the first bishop of Rochester. The new diocese had about 54,500 Catholics in 35 parish churches and 29 mission churches.
In 1896, the counties of Schuyler, Tioga, Chemung, and Steuben were added to the Diocese of Rochester from the Diocese of Buffalo, forming the current boundaries.
The diocese grew as Catholic immigrants came to western New York, peaking in the 1960s. Since then, the Catholic population has stabilized while the numbers of ordained presbyters (priests) and religious sisters has fallen.
In 1909, there were 121,000 Catholics in 93 parishes, 36 missions and 53 parish schools with 18,000 pupils. There were 164 priests and more than 500 sisters.
In 1938, there were 223,657 Catholics in 129 parishes, 36 missions and 72 parish schools serving 23,796 pupils. There were 289 active diocesan priests.
In 1966, there were 361,790 Catholics in 155 parishes, 36 mission churches and 99 elementary parish schools serving 45,540 pupils. There were 371 active diocesan priests and 1,549 sisters.
In 1978, there were 358,850 Catholics in 161 parishes, 29 mission churches and 75 schools serving 19,526 pupils. There were 311 active diocesan priests and 1,095 women religious.
In 1992, there were 361,384 Catholics in 162 parishes and 58 elementary schools serving 11,992 pupils. There were 208 active diocesan priests and 842 sisters.
On September 22, 2017, the Diocese of Rochester inaugurated its sesquicentennial anniversary marked by a solemn Mass at Sacred Heart Cathedral. This event marks a year long celebration of the 150 year anniversary and the year of the Eucharist which was proclaimed by Bishop Salvatore Matano on the Feast of Corpus Christi.
Roman Catholic Diocese of Rochester