|
Year
|
State(s)
|
(Arch)Diocese of ...
|
Formed from...
|
|
1789
|
MD
|
Baltimore
|
Prefecture Apostolic of United States of America
|
|
1793
|
LA
|
New Orleans (as Louisiana)
|
Diocese of San Cristobal de la Habana
|
|
1808
|
MA
|
Boston
|
Diocese of Baltimore
|
|
1808
|
KY
|
Louisville (as Bardstown)
|
Diocese of Baltimore
|
|
1808
|
NY
|
New York
|
Diocese of Baltimore
|
|
1808
|
PA
|
Philadelphia
|
Diocese of Baltimore
|
|
1820
|
SC
|
Charleston
|
Archdiocese of Baltimore
|
|
1820
|
VA
|
Richmond
|
Archdiocese of Baltimore
|
|
1821
|
OH
|
Cincinnati
|
Diocese of Bardstown
|
|
1826
|
MO
|
St. Louis
|
Dioceses of Durango & Louisiana and the Two Floridas
|
|
1829
|
AL
|
Mobile
|
Vicariate Apostolic of Alabama and the Floridas (from Diocese of Louisiana)
|
|
1833
|
MI
|
Detroit
|
Diocese of Cincinnati
|
|
1834
|
IN
|
Indianapolis (as Vincennes)
|
Diocese of Bardstown
|
|
1837
|
IA
|
Dubuque
|
Diocese of St. Louis
|
|
1837
|
TN
|
Nashville
|
Diocese of Bardstown
|
|
1837
|
MS
|
Jackson (as Natchez)
|
Diocese of New Orleans
|
|
1840
|
CA
|
Monterey (as California)
|
Diocese of Sonora
|
|
1843
|
PA
|
Pittsburgh
|
Diocese of Philadelphia
|
|
1843
|
IL
|
Chicago
|
Dioceses of St. Louis & Vincennes
|
|
1843
|
CT
|
Hartford
|
Diocese of Boston
|
|
1843
|
AR
|
Little Rock
|
Diocese of St. Louis
|
|
1843
|
WI
|
Milwaukee
|
Diocese of Detroit
|
|
1846
|
OR
|
Portland (as Oregon City)
|
Vicariate Apostolic of Oregon Territory (from Dioceses of Baltimore & Quebec)
|
|
1847
|
NY
|
Albany
|
Diocese of New York
|
|
1847
|
NY
|
Buffalo
|
Diocese of New York
|
|
1847
|
OH
|
Cleveland
|
Diocese of Cincinnati
|
|
1847
|
TX
|
Houston-Galveston (as Galveston)
|
Vicariate Apostolic of Texas (from Diocese of Linares)
|
|
1850
|
WA
|
Seattle (as Nesqually)
|
Archdiocese of Oregon City
|
|
1850
|
MN
|
Saint Paul and Minneapolis (as Saint Paul)
|
Dioceses of Dubuque & Milwaukee
|
|
1850
|
GA
|
Savannah
|
Dioceses of Charleston & Mobile
|
|
1850
|
WV
|
Wheeling-Charleston
|
Diocese of Richmond
|
|
1853
|
LA
|
Alexandria (as Natchitoches)
|
Archdiocese of New Orleans
|
|
1853
|
NY
|
Brooklyn
|
Archdiocese of New York
|
|
1853
|
VT
|
Burlington
|
Diocese of Boston
|
|
1853
|
KY
|
Covington
|
Diocese of Louisville
|
|
1853
|
PA
|
Erie
|
Diocese of Pittsburgh
|
|
1853
|
NJ
|
Newark
|
Dioceses of New York & Philadelphia
|
|
1853
|
ME
|
Portland
|
Diocese of Boston
|
|
1853
|
CA
|
San Francisco
|
Diocese of Monterey
|
|
1853
|
NM
|
Santa Fe
|
Vicariate Apostolic of New Mexico (from Diocese of Durango)
|
|
1853
|
IL
|
Springfield (as Quincy)
|
Diocese of Chicago
|
|
1856
|
IN
|
Gary
|
Diocese of Fort Wayne
|
|
1857
|
IN
|
Fort Wayne-South Bend (as Fort Wayne)
|
Diocese of Vincennes
|
|
1857
|
MI
|
Marquette (as Sault Sainte Marie)
|
Vicariate Apostolic of Upper Michigan (from Diocese of Detroit)
|
|
1868
|
OH
|
Columbus
|
Archdiocese of Cincinnati
|
|
1868
|
WI
|
Green Bay
|
Diocese of Milwaukee
|
|
1868
|
PA
|
Harrisburg
|
Diocese of Philadelphia
|
|
1868
|
WI
|
La Crosse
|
Diocese of Milwaukee
|
|
1868
|
NC
|
Raleigh
|
Diocese of Charleston
|
|
1868
|
NY
|
Rochester
|
Diocese of Buffalo
|
|
1868
|
PA
|
Scranton
|
Diocese of Philadelphia
|
|
1868
|
DE / MD
|
Wilmington
|
Diocese of Baltimore & Philadelphia
|
|
1870
|
FL
|
St. Augustine
|
Vicariate Apostolic of Florida (from Diocese of Savannah)
|
|
1870
|
MA
|
Springfield
|
Diocese of Boston
|
|
1872
|
NY
|
Ogdensburg
|
Diocese of Albany
|
|
1872
|
RI
|
Providence
|
Dioceses of Boston & Hartford
|
|
1874
|
TX
|
San Antonio
|
Diocese of Galveston
|
|
1875
|
IL
|
Peoria
|
Diocese of Chicago
|
|
1877
|
KS
|
Kansas City (as Leavenworth)
|
Vicariate Apostolic of Kansas (from Diocese of New Orleans)
|
|
1880
|
MO
|
Kansas City-Saint Joseph (as Kansas City)
|
Archdiocese of St. Louis
|
|
1881
|
IA
|
Davenport
|
Diocese of Dubuque
|
|
1881
|
NJ
|
Trenton
|
Diocese of Newark
|
|
1882
|
MI
|
Grand Rapids
|
Diocese of Detroit
|
|
1884
|
MT
|
Helena
|
Vicariate Apostolic of Montana
|
|
1884
|
NH
|
Manchester
|
Diocese of Portland
|
|
1885
|
NE
|
Omaha
|
Vicariate Apostolic of Nebraska (from Diocese of New Orleans)
|
|
1886
|
CA
|
Sacramento
|
Diocese of San Francisco
|
|
1886
|
NY
|
Syracuse
|
Diocese of Albany
|
|
1887
|
IL
|
Belleville
|
Diocese of Alton
|
|
1887
|
WY
|
Cheyenne
|
Diocese of Omaha
|
|
1887
|
NE
|
Lincoln
|
Diocese of Omaha
|
|
1887
|
KS
|
Salina (as Concordia)
|
Diocese of Leavenworth
|
|
1887
|
KS
|
Wichita
|
Diocese of Leavenworth
|
|
1887
|
CO
|
Denver
|
Vicariate Apostolic of Colorado (from Diocese of Santa Fe)
|
|
1889
|
MN
|
Saint Cloud
|
Vicariate Apostolic of Northern Minnesota (from Diocese of St. Paul)
|
|
1889
|
MN
|
Duluth
|
Vicariate Apostolic of Northern Minnesota
|
|
1889
|
ND
|
Fargo (as Jamestown)
|
Vicariate Apostolic of Dakota (from Diocese of St. Paul)
|
|
1889
|
SD
|
Sioux Falls
|
Vicariate Apostolic of Dakota (from Diocese of St. Paul)
|
|
1889
|
MN
|
Winona-Rochester (as Winona)
|
Archdiocese of St. Paul
|
|
1890
|
TX
|
Dallas
|
Diocese of Galveston
|
|
1891
|
UT
|
Salt Lake City
|
Vicariate Apostolic of Utah (from Archdiocese of San Francisco)
|
|
1893
|
ID
|
Boise
|
Vicariate Apostolic of Idaho (from Archdiocese of Oregon City)
|
|
1897
|
AZ
|
Tucson
|
Vicariate Apostolic of Arizona (from Diocese of Santa Fe)
|
|
1901
|
PA
|
Altoona-Johnstown (as Altoona)
|
Dioceses of Harrisburg & Pittsburgh
|
|
1902
|
IA
|
Sioux City
|
Archdiocese of Dubuque
|
|
1902
|
SD
|
Rapid City (as Lead)
|
Diocese of Sioux Falls
|
|
1903
|
OR
|
Baker (as Baker City)
|
Archdiocese of Oregon City
|
|
1904
|
MA
|
Fall River
|
Diocese of Providence
|
|
1904
|
MT
|
Great Falls-Billings (as Great Falls)
|
Diocese of Helena
|
|
1905
|
WI
|
Superior
|
Dioceses of Green Bay & La Crosse
|
|
1905
|
OK
|
Oklahoma City (as Oklahoma)
|
Vicariate Apostolic of Indian Territory (from Diocese of Little Rock)
|
|
1908
|
IL
|
Rockford
|
Archdiocese of Chicago
|
|
1909
|
ND
|
Bismarck
|
Diocese of Fargo
|
|
1909
|
MN
|
Crookston
|
Diocese of Duluth
|
|
1910
|
OH
|
Toledo
|
Diocese of Cleveland
|
|
1911
|
IA
|
Des Moines
|
Diocese of Davenport
|
|
1912
|
NE
|
Grand Island (as Kearney)
|
Diocese of Omaha
|
|
1912
|
TX
|
Corpus Christi
|
Vicariate Apostolic of Brownsville (from Diocese of Galveston)
|
|
1913
|
WA
|
Spokane
|
Diocese of Seattle
|
|
1914
|
TX
|
El Paso
|
Dioceses of Dallas, San Antonio, & Tucson
|
|
1918
|
LA
|
Lafayette
|
Archdiocese of New Orleans
|
|
1922
|
CA
|
Los Angeles (as Los Angeles-San Diego)
|
Diocese of Monterey-Los Angeles
|
|
1926
|
TX
|
Amarillo
|
Dioceses of Dallas, El Paso, San Antonio
|
|
1931
|
NV
|
Reno
|
Dioceses of Salt Lake & Sacramento
|
|
1936
|
CA
|
San Diego
|
Diocese of Los Angeles-San Diego
|
|
1937
|
MI
|
Lansing
|
Diocese of Detroit
|
|
1937
|
NJ
|
Camden
|
Diocese of Trenton
|
|
1937
|
KY
|
Owensboro
|
Diocese of Louisville
|
|
1937
|
NJ
|
Paterson
|
Diocese of Newark
|
|
1938
|
MI
|
Saginaw
|
Dioceses of Detroit & Grand Rapids
|
|
1939
|
NM / AZ
|
Gallup
|
Dioceses of Santa Fe & Tucson
|
|
1941
|
HI
|
Honolulu
|
Vicariate Apostolic of Hawaiian Islands
|
|
1941
|
CO
|
Pueblo
|
Diocese of Denver
|
|
1943
|
OH
|
Youngstown
|
Diocese of Cleveland
|
|
1944
|
IN
|
Lafayette
|
Diocese of Fort Wayne
|
|
1944
|
OH
|
Steubenville
|
Diocese of Columbus
|
|
1944
|
IN
|
Evansville
|
Diocese of Indianapolis
|
|
1946
|
WI
|
Madison
|
Dioceses of Green Bay, La Crosse, Milwaukee
|
|
1947
|
TX
|
Austin
|
Dioceses of Dallas, Galveston, San Antonio
|
|
1947
|
DC / MD
|
Washington
|
Archdiocese of Baltimore-Washington
|
|
1948
|
IL
|
Joliet
|
Dioceses of Chicago, Peoria, Rockford
|
|
1950
|
MA
|
Worcester
|
Diocese of Springfield
|
|
1951
|
AK
|
Anchorage-Juneau (as Juneau)
|
Vicariate Apostolic of Alaska
|
|
1951
|
PA
|
Greensburg
|
Diocese of Pittsburgh
|
|
1951
|
KS
|
Dodge City
|
Diocese of Wichita
|
|
1951
|
WA
|
Yakima
|
Dioceses of Seattle & Spokane
|
|
1953
|
CT
|
Bridgeport
|
Diocese of Hartford
|
|
1953
|
CT
|
Norwich
|
Diocese of Hartford
|
|
1956
|
GA
|
Atlanta
|
Diocese of Savannah-Atlanta
|
|
1956
|
MO
|
Springfield-Cape Girardeau
|
Dioceses of Kansas City, St. Louis
|
|
1956
|
MO
|
Jefferson City
|
Dioceses of Kansas City, St. Joseph, St. Louis
|
|
1957
|
NY
|
Rockville Centre
|
Diocese of Brooklyn
|
|
1957
|
MN
|
New Ulm
|
Archdiocese of St. Paul
|
|
1958
|
FL
|
Miami
|
Diocese of St. Augustine
|
|
1961
|
PA
|
Allentown
|
Archdiocese of Philadelphia
|
|
1961
|
LA
|
Baton Rouge
|
Archdiocese of New Orleans
|
|
1961
|
TX
|
San Angelo
|
Dioceses of Amarillo, Austin, El Paso, Dallas-Fort Worth
|
|
1962
|
AK
|
Fairbanks
|
Vicariate Apostolic of Alaska (from Dioceses of New Westminster & Victoria)
|
|
1962
|
CA
|
Oakland
|
Archdiocese of San Francisco
|
|
1962
|
CA
|
Santa Rosa
|
Dioceses of Sacramento & San Francisco
|
|
1962
|
CA
|
Stockton
|
Dioceses of Sacramento & San Francisco
|
|
1965
|
TX
|
Brownsville
|
Diocese of Corpus Christi
|
|
1966
|
TX
|
Beaumont
|
Diocese of Galveston-Houston
|
|
1967
|
TX
|
Fresno
|
Diocese of Monterey-Fresno
|
|
1968
|
FL
|
Orlando
|
Dioceses of St. Augustine & Miami
|
|
1968
|
FL
|
St. Petersburg
|
Dioceses of Miami & St. Augustine
|
|
1969
|
AL
|
Birmingham
|
Diocese of Mobile-Birmingham
|
|
1969
|
TX
|
Fort Worth
|
Diocese of Dallas-Fort Worth
|
|
1969
|
AZ
|
Phoenix
|
Dioceses of Gallup & Tucson
|
|
1970
|
TN
|
Memphis
|
Diocese of Nashville
|
|
1970
|
MI
|
Gaylord
|
Dioceses of Grand Rapids & Saginaw
|
|
1970
|
MI
|
Kalamazoo
|
Dioceses of Grand Rapids & Lansing
|
|
1971
|
NC
|
Charlotte
|
Diocese of Raleigh
|
|
1972
|
OK
|
Tulsa
|
Diocese of Oklahoma City and Tulsa
|
|
1974
|
VA
|
Arlington
|
Diocese of Richmond
|
|
1975
|
FL
|
Pensacola-Tallahassee
|
Diocese of St. Augustine
|
|
1976
|
CA
|
Orange
|
Archdiocese of Los Angeles
|
|
1977
|
MS
|
Biloxi
|
Diocese of Natchez-Jackson
|
|
1977
|
LA
|
Houma-Thibodaux
|
Archdiocese of New Orleans
|
|
1978
|
CA
|
San Bernardino
|
Diocese of San Diego
|
|
1980
|
LA
|
Lake Charles
|
Diocese of Lafayette
|
|
1981
|
CA
|
San Jose
|
Archdiocese of San Francisco
|
|
1981
|
NJ
|
Metuchen
|
Diocese of Trenton
|
|
1982
|
TX
|
Victoria
|
Dioceses of Corpus Christi, Galveston-Houston, San Antonio
|
|
1982
|
NM
|
Las Cruces
|
Dioceses of El Paso & Santa Fe
|
|
1983
|
TX
|
Lubbock
|
Dioceses of San Angelo & Amarillo
|
|
1983
|
CO
|
Colorado Springs
|
Dioceses of Denver & Pueblo
|
|
1984
|
FL
|
Palm Beach
|
Dioceses of Miami & Orlando
|
|
1984
|
FL
|
Venice
|
Dioceses of Miami, Orlando, St. Petersburg
|
|
1986
|
LA
|
Shreveport
|
Diocese of Alexandria-Shreveport
|
|
1986
|
TX
|
Tyler
|
Dioceses of Beaumont, Dallas, Galveston-Houston
|
|
1988
|
KY
|
Lexington
|
Dioceses of Louisville & Covington
|
|
1988
|
TN
|
Knoxville
|
Diocese of Nashville
|
|
1995
|
NV
|
Las Vegas
|
Diocese of Reno-Las Vegas
|
|
2000
|
TX
|
Laredo
|
Dioceses of Corpus Christi & San Antonio
|
