

The Diocese of Ogdensburg encompasses the northeastern New York counties of Clinton, Essex, Franklin, Hamilton, Herkimer (northern portion), Jefferson, Lewis and St. The Diocese of Buffalo encompasses the western New York counties of Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Niagara, Orleans and Wyoming. The Diocese of Brooklyn serves the areas of Brooklyn (Kings County) and Queens. The Diocese of Brooklyn originally encompassed all of Long Island, until 1957, when when the counties of Nassau and Suffolk, in the eastern portion of Long Island, were formed into the Diocese of Rockville Centre (NY). The Diocese of Albany encompasses the civil New York counties of: Albany, Columbia, Delaware, Fulton, Greene, Herkimer (southern portion), Montgomery, Otsego, Renssalaer, Saratoga, Schenectady, Schoharie, Warren, and Washington.

The Archdiocese of New York encompasses the civil New York counties of Bronx, Dutchess, Manhattan, Orange, Putnam, Rockland, Staten Island (Richmond), Sullivan, Ulster and Westchester. This is a list of the New York Roman Catholic Dioceses, and the counties which are approximately encompassed by each diocese. The actual civil county boundaries may not completely correlate with the diocesan boundaries, and there may be variations especially near to bordering areas. When you find the diocese which encompasses your area of interest, visit the link to that diocese to learn more about that area.
