Chronology of Catholic Dioceses:The United States of America
See a list of abbreviations used in this list. See also our listing of current ecclesial jurisdictions.
- Regarding the Apostolic Prefecture of the United States of America:
- 1622
- England (AV, establised by the "Propaganda Fide" in Rome) - England
- 1688
- London District of England (AV, new name, previously England AV) - England
- Regarding New Orleans, Saint Louis, California, Texas, New Mexico:
- 0040-0100~
- Italica - Spain
- 0200-0300
- Sevilla (detached from Italica?) - Spain
- 0300-0400
- Sevilla (Metr.) - Spain
- 1511
- Santo Domingo (established from Spain/Sevilla) - Dominican Republic
- 1518
- Carolense / Yucatan (established from Spain/Sevilla) - Mexico
- 1522
- Santiago de Cuba (detached from Santo Domingo) - Cuba
- 1525
- Tlaxcala (established from Yucatan) - Mexico
- 1530
- México (detached from Tlaxcala) - Mexico
- 1536
- Michoacán (detached from México) - Mexico
- 1548
- Guadalajara (detached from Michoacán) - Mexico
- 1620
- Durango (detached from Guadalajara) - Mexico
- 1777
- Linares / Nueva León (detached from Michoacán) - Mexico
- 1779
- Sonora (detached from Durango) - Mexico
- 1787
- San Cristóbal de la Habana, Louisiana y las Floridas (detached from Santiago de Cuba) - Cuba
- Regarding Oregon:
- 1658
- New France (AV, established by Rome, detached from the spiritual care of Rouen) - Canada
- 1674
- Québec (D, and new name, previously New France AV) - Canada
- 1819
- Québec (Metr.) - Canada
- 1784
- United States of America (AP, detached from London District of England AV) - USA
- 1789
- Baltimore (D, and new name, previously United States of America AP) - USA
- 1793
- New Orleans / Saint Louis of New Orleans / Louisiana and the Floridas (detached from San Cristóbal de la Habana, Louisiana y las Floridas) - (Spanish Louisiana and the Floridas) USA
- 1808
- Baltimore (Metr.) - USA
- 1808
- Bardstown (detached from Baltimore) - USA
- 1808
- Boston (detached from Baltimore) - USA
- 1808
- New York (detached from Baltimore) - USA
- 1808
- Philadelphia (detached from Baltimore) - USA
- 1820
- Charleston (detached from Baltimore) - USA
- 1820
- Richmond (detached from Baltimore) - USA
- 1821
- Cincinnati (detached from Bardstown) - USA
- 1822
- Mississippi and Alabama (AV, detached from New Orleans) - USA
- 1824
- Mississippi and Alabama (suppressed) - USA
- 1825
- Alabama and the Floridas (AV, detached from Louisiana and the Floridas / Saint Louis of New Orleans, and from Baltimore) - USA
- 1825
- Sandwich Islands (AP) - Sandwich Islands (USA)
- 1826
- Mississippi (AV, detached from New Orleans) - USA
- 1826
- Saint Louis (detached from New Orleans, and from Durango) - USA
- 1829
- Mobile (D, and new name, previously Alabama and the Floridas [AV]) - USA
- 1833
- Detroit (detached from Cincinnati) - USA
- 1833
- Sandwich Islands (AP, subjected to, but not incorporated in, the AV Eastern Oceania) - Various territories in the Pacific
- 1834
- Vincennes (detached from Bardstown) - USA
- 1837
- Dubuque (detached from Saint Louis) - USA
- 1837
- Nashville (detached from Bardstown) - USA
- 1837
- Natchez (D, and new name, previously Mississippi [AV])- USA
- 1840
- California (detached from Sonora) - (Mexico) USA
- 1841
- Louisville (new name, previously Bardstown) - USA
- 1842
- Texas (AV, detached from Linares / Nuevo León) - USA
- 1843
- Chicago (detached from Saint Louis) - USA
- 1843
- Hartford (detached from Boston) - USA
- 1843
- Little Rock (detached from Saint Louis) - USA
- 1843
- Milwaukee (detached from Detroit) - USA
- 1843
- Oregon (AV, established from Baltimore, and from Québec) - USA, Canada
- 1843
- Pittsburgh (detached from Philadelphia) - USA
- 1844
- Sandwich Islands (AV, and made fully independent from the AV Eastern Oceania) - USA
- 1846
- Oregon City (Metr., and new name, previously Oregon [AV]) - USA
- 1846
- Walla Walla (detached from Oregon [AV]) - USA
- 1847
- Saint Louis (Metr., was part of the Metropolitan Province of Baltimore) - USA
- 1847
- Albany (detached from New York) - USA
- 1847
- Buffalo (detached from New York) - USA
- 1847
- Cleveland (detached from Cincinnati) - USA
- 1847
- Galveston (D, and new name, previously Texas [AV])- USA
- 1848
- Hawaiian Islands (AV, new name, previously Sandwich Islands AV) - USA
- 1849
- Monterey (new name, previously California) - USA
- 1850
- Cincinnati (Metr., was part of the Metropolitan Province of Baltimore) - USA
- 1850
- New Orleans (Metr., was immediately subject to the Apostolic See) - USA
- 1850
- New York (Metr., was part of the Metropolitan Province of Baltimore) - USA
- 1850
- Walla Walla (suppressed, territory to newly erected Nesqually) - USA
- 1850
- Nesqually (D, with territory from the suppressed diocese of Walla Walla) - USA
- 1850
- Saint Paul (detached from Dubuque, and from Milwaukee)- USA
- 1850
- New Mexico (AV, detached from Durango) - USA
- 1850
- Savannah (detached from Charleston, and from Mobile) - USA
- 1850
- Wheeling (detached from Richmond) - USA
- 1851
- Indian Territory east of the Rocky Mountains (AV, detached from Saint Louis) - USA
- 1853
- Brooklyn (detached from New York) - USA
- 1853
- Burlington (detached from Boston) - USA
- 1853
- Covington (detached from Louisville) - USA
- 1853
- Erie (detached from Pittsburgh) - USA
- 1853
- Natchitoches (detached from New Orleans) - USA
- 1853
- Newark (detached from New York, and from Philadelphia) - USA
- 1853
- Portland (detached from Boston) - USA
- 1853
- Quincy (detached from Saint Louis) - USA
- 1853
- Santa Fe (D, and new name, previously New Mexico AV) - USA
- 1853
- Upper Michigan (AV, detached from Detroit) - USA
- 1853
- San Francisco (Metr., detached from Monterey, which was until then part of the Metropolitan Province of Mexico) - USA
- 1857
- Alton (new name, previously Quincy) - USA
- 1857
- Sault Sainte Marie and Marquette (D, and new name, previously Upper Michigan [AV])- USA
- 1857
- Fort Wayne (detached from Vincennes) - USA
- 1857
- Kansas (AV, new name, previously the Indian Territory east of the Rocky Mountains [AV]) - USA
- 1857
- Nebraska (AV, detached from the Indian Territory east of the Rocky Mountains [AV]) - USA
- 1858
- Idaho and Montana (AV, detached from Oregon City) - USA
- 1859
- Monterey-Los Angeles (new name, previously Monterey) - USA
- 1860
- Marysville (AV, detached from San Francisco) - USA
- 1868
- Arizona (AV, detached from Santa Fe) - USA
- 1868
- Colorado and Utah (AV, detached from Santa Fe) - USA
- 1868
- Columbus (detached from Cincinnati) - USA
- 1868
- Grass Valley (D, and new name, previously Marysville [AV]) - USA
- 1868
- Green Bay (detached from Milwaukee) - USA
- 1868
- Harrisburg (detached from Philadelphia) - USA
- 1868
- La Crosse (detached from Milwaukee) - USA
- 1868
- North Carolina (AV, detached from Charleston) - USA
- 1868
- Rochester / Rochester in America (detached from Buffalo) - USA
- 1868
- Saint Joseph (detached from Saint Louis) - USA
- 1868
- Scranton (detached from Philadelphia) - USA
- 1868
- Wilmington (detached from Philadelphia, and from Baltimore)- USA
- 1870
- Colorado (AV, new name, previously Colorado and Utah) - USA
- 1870
- Saint Augustine (detached from Savannah) - USA
- 1870
- Springfield in Massachusetts (detached from Boston) - USA
- 1872
- Ogdensburg (detached from Albany) - USA
- 1872
- Providence (detached from Hartford) - USA
- 1874
- Brownsville (AV, detached from Galveston) - USA
- 1874
- San Antonio (detached from Galveston) - USA
- 1875
- Boston (Metr., was part of the Metropolitan Province of New York) - USA
- 1875
- Milwaukee (Metr., was part of the Metropolitan Province of Saint Louis) - USA
- 1875
- Philadelphia (Metr., was part of the Metropolitan Province of Baltimore) - USA
- 1875
- Santa Fe (Metr., was part of the Metropolitan Province of Saint Louis) - USA
- 1875
- Northern Minnesota (AV, detached from Saint Paul) - USA
- 1875
- Peoria (detached from Chicago) - USA
- 1876
- Allegheny (detached from Pittsburgh) - USA
- 1877
- Leavenworth (D, and new name, previously Kansas [AV]) - USA
- 1879
- Dakota (AV, detached from Saint Paul) - USA
- 1880
- Chicago (Metr., was part of the Metropolitan Province of Saint Louis) - USA
- 1880
- Kansas City (detached from Saint Louis) - USA
- 1881
- Davenport (detached from Dubuque) - USA
- 1881
- Trenton (detached from Newark) - USA
- 1882
- Grand Rapids (detached from Detroit) - USA
- 1883
- Idaho (AV, new name, previously Idaho and Montana [AV]) - USA
- 1883
- Montana (AV, detached from Idaho and Montana [AV], and from Nebraska [AV]) - USA
- 1884
- Helena (D, and new name, previously Montana [AV]) - USA
- 1884
- Manchester (detached from Portland) - USA
- 1885
- Omaha (D, previously Nebraska [AV]) - USA
- 1886
- Grass Valley (abolished, territory to newly erected Sacramento) - USA
- 1886
- Sacramento (D, territory from Grass Valley, and from San Francisco) - USA
- 1886
- Syracuse (detached from Albany) - USA
- 1887
- Belleville (detached from Alton) - USA
- 1887
- Cheyenne (detached from Omaha) - USA
- 1887
- Concordia (detached from Leavenworth) - USA
- 1887
- Denver (D, and new name, previously Colorado [AV])- USA
- 1887
- Lincoln (detached from Omaha) - USA
- 1887
- Utah (AV, detached from San Francisco) - USA
- 1887
- Wichita (detached from Leavenworth) - USA
- 1888
- Saint Paul (Metr.) - USA
- 1889
- Allegheny (suppressed, territories incorporated in Pittsburgh) - USA
- 1889
- Duluth (D, detached from North Minnesota [AV]) - USA
- 1889
- Jamestown (D, detached from Dakota [AV]) - USA
- 1889
- Saint Cloud (D, and new name, previously North Minnesota [AV]) - USA
- 1889
- Sioux Falls (D, and new name, previously Dakota [AV])- USA
- 1889
- Winona (detached from Saint Paul) - USA
- 1890
- Dallas (detached from Galveston) - USA
- 1891
- Indian Territory (AV, detached from Little Rock) - USA
- 1891
- Salt Lake (D, and new name, previously Utah [AV]) - USA
- 1893
- Dubuque (Metr., was part of the Metropolitan Province of Saint Louis) - USA
- 1893
- Boise City (D, and new name, previously Idaho [AV])- USA
- 1894
- Alaska (AP, detached from Vancouver Island / Victoria) - USA
- 1897
- Fargo (new name, previously Jamestown) - USA
- 1897
- Tucson (D, and new name, previously Arizona [AV]) - USA
- 1898
- Indianapolis (new name, previously Vincennes) - USA
- 1901
- Altoona (detached from Harrisburg, and from Pittsburgh) - USA
- 1902
- Lead (detached from Sioux Falls) - USA
- 1902
- Sioux City (detached from Dubuque) - USA
- 1903
- Baker City (detached from Oregon City) - USA
- 1904
- Fall River (detached from Providence) - USA
- 1904
- Great Falls (detached from Helena) - USA
- 1905
- Oklahoma City (D, and new name, previously Indian Territory [AV]) - USA
- 1905
- Superior (detached from La Crosse, and from Green Bay) - USA
- 1907
- Seattle (new name, previously Nesqually) - USA
- 1908
- Rockford (detached from Chicago) - USA
- 1909
- Bismarck (detached from Fargo) - USA
- 1909
- Crookston (detached from Duluth) - USA
- 1910
- Alexandria (new name, previously Natchitoches) - USA
- 1910
- Mary, Help of Christians - Belmont (Abb., detached from North Carolina AV) - USA
- 1910
- Toledo (detached from Cleveland) - USA
- 1911
- Des Moines (detached from Davenport) - USA
- 1912
- Corpus Christi (D, previously Brownsville, VA) - USA
- 1912
- Kearney (detached from Omaha) - USA
- 1913
- Philadelphia [Ukr.] (Ord.) - USA
- 1913
- Spokane (detached from Seattle) - USA
- 1914
- El Paso (detached from Tucson, from Dallas, and from San Antonio) - USA
- 1916
- Alaska (AV) - USA
- 1917
- Grand Island (new name, previously Kearney) - USA
- 1918
- Lafayette (detached from New Orleans) - USA
- 1922
- Monterey-Fresno (new name, previously Monterey-Los Angeles) - USA
- 1922
- Los Angeles-San Diego (detached from Monterey-Los Angeles) - USA
- 1923
- Springfield in Illinois (new name, previously Alton) - USA
- 1924
- Philadelphia [Ukr.] (Ap.Ex.) - USA
- 1924
- Pittsburgh (Ruth./Byz.) (Ap.Ex.) / Apostolic Exarchate for faithful of the Byzantine Rite from Podcarpazia - USA
- 1924
- Raleigh (D, and new name, previously North Carolina [AV]) - USA
- 1926
- San Antonio (Metr., was part of the Metropolitan Province of New Orleans) - USA
- 1926
- Amarillo (detached from San Antonio, and from Dallas) - USA
- 1928
- Portland in Oregon (Metr., new name, previously Oregon City Metr.) - USA
- 1930
- Oklahoma City-Tulsa (new name, previously Oklahoma City) - USA
- 1930
- Rapid City (new name, previously Lead) - USA
- 1931
- Reno (detached from Salt Lake, and from Sacramento) - USA
- 1936
- Los Angeles (Metr., and new name, previously Los Angeles-San Diego, was part of the Metropolitan Province of San Francisco) - USA
- 1936
- San Diego (detached from Los Angeles-San Diego) - USA
- 1937
- Camden (detached from Trenton) - USA
- 1937
- Detroit (Metr., was part of the Metropolitan Province of Cincinnati) - USA
- 1937
- Lansing (detached from Detroit) - USA
- 1937
- Louisville (Metr., had been part of the Metropolitan Province of Cincinnati) - USA
- 1937
- Marquette (new name, previously Sault Sainte Marie and Marquette) - USA
- 1937
- Newark (Metr., detached from the Metropolitan Province of New York) - USA
- 1937
- Owensboro (detached from Louisville) - USA
- 1937
- Paterson (detached from Newark) - USA
- 1937
- Savannah-Atlanta (new name, previously Savannah) - USA
- 1938
- Saginaw (detached from Detroit, and from Grand Rapids) - USA
- 1939
- Baltimore and Washington (Baltimore (Metr.), united to now erected AD of Washington) - USA
- 1939
- Gallup (detached from Santa Fe, and from Tucson) - USA
- 1941
- Denver (Metr., was part of the Metropolitan Province of Santa Fe) - USA
- 1941
- Honolulu (D, and new name, previously Hawaiian Islands AV) - USA
- 1941
- Pueblo (detached from Denver) - USA
- 1943
- Youngstown (detached from Cleveland) - USA
- 1944
- Indianapolis (Metr., was part of the Metropolitan Province of Cincinnati) - USA
- 1944
- Salina (new name, previously Concordia) - USA
- 1944
- Evansville (detached from Indianapolis) - USA
- 1944
- Lafayette in Indiana (detached from Fort Wayne) - USA
- 1944
- Steubenville (detached from Columbus) - USA
- 1945
- Omaha (Metr., was part of the Metropolitan Province of Dubuque) - USA
- 1945
- Madison (detached from Milwaukee, from La Crosse, and from Green Bay) - USA
- 1947
- Baltimore (Metr., previously Baltimore and Washington) - USA
- 1947
- Kansas City in Kansas (new name, previously Leavenworth) - USA
- 1947
- Austin (detached from San Antonio, from Galveston, and from Dallas) - USA
- 1947
- Washington (AD, detached from Baltimore and Washington, was part of the Metropolitan Province of Baltimore and Washington) - USA
- 1948
- Joliet in Illinois (detached from Chicago, from Peoria, and from Rockford) - USA
- 1950
- Worcester (detached from Springfield) - USA
- 1951
- Salt Lake City (new name, previously Salt Lake) - USA
- 1951
- Seattle (Metr., was part of the Metropolitan Province of Portland in Oregon) - USA
- 1951
- Dodge City (detached from Wichita) - USA
- 1951
- Greensburg (detached from Pittsburg) - USA
- 1951
- Juneau (D, detached Alaska [AV]) - USA
- 1951
- Yakima (detached from Seattle, and from Spokane) - USA
- 1952
- Baker (new name, previously Baker City) - USA
- 1952
- Kansas City in Kansas (Metr., was part of the Metropolitan Province of Saint Louis) - USA
- 1953
- Dallas-Fort Worth (new name, previously Dallas) - USA
- 1953
- Hartford (Metr., was part of the Metropolitan Province of Boston) - USA
- 1953
- Bridgeport (detached from Hartford) - USA
- 1953
- Norwich (detached from Hartford) - USA
- 1954
- Mobile and Birmingham (new name, previously Mobile) - USA
- 1956
- Gary (detached from Fort Wayne) - USA
- 1956
- Jefferson City (detached from Saint Louis, Kansas City, and from Saint Joseph) - USA
- 1956
- Kansas City-Saint Joseph (union of two dioceses: Kansas City, and Saint Joseph) - USA
- 1956
- Natchez-Jackson (new name, previously Natchez) - USA
- 1956
- Atlanta (detached from Savannah-Atlanta) - USA
- 1956
- Savannah (new name, previously Savannah-Atlanta) - USA
- 1956
- Springfield-Cape Girardeau (detached from Saint Louis, and from Kansas City) - USA
- 1956
- Stamford [Ukr.] (Ap.Ex.) (detached from Philadelphia [Ucr.]) USA
- 1957
- Altoona-Johnstown (new name, previously Altoona) - USA
- 1957
- New Ulm (detached from Saint Paul) - USA
- 1957
- Rockville Centre (detached from Brooklyn) - USA
- 1957
- United States of America (Mil.Ord.) - USA
- 1958
- Philadelphia [Ukr.] (Metr.) - USA
- 1958
- Stamford [Ukr.] - USA
- 1958
- Miami (detached from Saint Augustin) - USA
- 1959
- Galveston-Houston (new name, previously Galveston) - USA
- 1960
- Fort Wayne-South Bend (new name, previously Fort Wayne) - USA
- 1961
- Allentown (detached from Philadelphia) - USA
- 1961
- Baton Rouge (detached from New Orleans) - USA
- 1961
- Saint Nicholas of Chicago [Ukr.] (detached from Philadelphia [Ukr.]) - USA
- 1961
- San Angelo (detached from Amarillo, from Dallas-Fort Worth, from Austin, and from El Paso) - USA
- 1962
- Atlanta (Metr., was part of the Metropolitan Province of Baltimore) - USA
- 1962
- Fairbanks (D, and new name, previously Alaska AV) - USA
- 1962
- Oakland (detached from San Francisco) - USA
- 1962
- Santa Rosa (detached from San Francisco) - USA
- 1962
- Stockton (detached from San Francisco, Sacramento) - USA
- 1963
- Pittsburgh [Ruth./Byz.] (D, and new name, previously The Apostolic Exarchate for faithful of the Byzantine Rite from Podcarpazia) - USA
- 1963
- Passaic [Ruth.] (detached from the Ap. Ex. for faithful of the Byzantine Rite from Podcarpazia] - USA
- 1965
- Washington (Metr., previously AD) - USA
- 1965
- Brownsville (detached from Corpus Christi) - USA
- 1966
- Saint Paul and Minneapolis (Metr., new name, previously Saint Paul Metr.) - USA
- 1966
- Anchorage (Metr., detached from Juneau, which was until then part of the Metropolitan Province of Seattle) - USA
- 1966
- Beaumont (detached from Galveston-Houston) - USA
- 1966
- United States of America [Mar.] (Ap.Ex.) - USA
- 1966
- United States of America [Gr.-Melk.] (Ap.Ex.) - USA
- 1967
- Monterey (new name, previously Monterey-Fresno) - USA
- 1967
- Fresno (detached from Monterey-Fresno) - USA
- 1968
- Miami (Metr., had been part of the Metropolitan Province of Atlanta) - USA
- 1968
- Orlando (detached from Saint Augustine, and from Miami) - USA
- 1968
- Saint Petersburg (detached from Saint Augustine, and from Miami) - USA
- 1969
- Birmingham (detached from Mobile and Birmingham) - USA
- 1969
- Dallas (sep. and new name, previously Dallas-Fort Worth) - USA
- 1969
- Mobile (Birmingham detached) - USA
- 1969
- Munhall [Byz.] (Metr., new name, previously Pittsburgh D) - USA
- 1969
- Fort Worth (detached from Dallas) - USA
- 1969
- Parma [Ruth.] (detached from Pittburgh) - USA
- 1969
- Phoenix (detached from Tucson) - USA
- 1970
- Gaylord (detached from Grand Rapids, and from Saginaw) - USA
- 1970
- Kalamazoo (detached from Grand Rapids, and from Lansing) - USA
- 1970
- Memphis (detached from Nashville) - USA
- 1971
- Saint Maron of Detroit [Mar.] (D, new name, previously United States of America Ap.Ex.) - USA
- 1971
- Charlotte (detached from Raleigh) - USA
- 1972
- Oklahoma City (Metr., and new name, previously Oklahoma City-Tulsa, was part of the Metropolitan Province of San Antonio) - USA
- 1972
- Tulsa (detached from Oklahoma City) - USA
- 1974
- Wheeling-Charleston (new name, previously Wheeling) - USA
- 1974
- Arlington (detached from Richmond) - USA
- 1975
- Pensacola-Tallahassee (detached from Mobile, and from Saint Augustine) - USA
- 1976
- Alexandria-Shreveport (new name, previously Alexandria) - USA
- 1976
- Our Lady of the Annunciation in Boston [Gr.-Melk.] (D, and new name, previously United States of America Ap.Ex.) - USA
- 1976
- Reno-Las Vegas (new name, previously Reno) - USA
- 1976
- Orange in California (detached from Los Angeles) - USA
- 1977
- Jackson (new name, previously Natchez-Jackson) - USA
- 1977
- Mary, Help of Christians - Belmont (Abb., incorporated in Charlotte) - USA
- 1977
- Newton [Gr.-Melk.] (new name, previously Our Lady of the Annunciation in Boston) - USA
- 1977
- Pittsburgh [Byz.] (Metr., new name, previously Munhall Metr.) - USA
- 1977
- Saint Maron of Brooklyn [Mar.] (new name, previously St. Maron of Detroit) - USA
- 1977
- Biloxi (detached from Natchez-Jackson) - USA
- 1977
- Houma-Thibodaux (detached from New Orleans) - USA
- 1977
- Newton [Gr.-Melk.] (new name, previously Our Lady of the Annunciation in Boston) - USA
- 1978
- San Bernardino (detached from San Diego) - USA
- 1980
- Great Falls-Billings (new name, previously Great Falls) - USA
- 1980
- Mobile (Metr., was part of the Metropolitan Province of New Orleans) - USA
- 1980
- Lake Charles (detached from Lafayette) - USA
- 1981
- Metuchen (detached from Trenton) - USA
- 1981
- San Jose in California (detached from San Francisco) - USA
- 1981
- United States and Canada [Arm.] (Ap.Ex.) - USA
- 1981
- Van Nuys [Ruth.] (detached from Parma) - USA
- 1982
- Las Cruces (detached from El Paso, and from Santa Fe) - USA
- 1982
- United States of America [Cald.] (Ap.Ex.) - USA
- 1982
- United States of America [Rom.-Byz.] (Ap.Ex.) - USA
- 1982
- Victoria in Texas (detached from San Antonio, from Galveston-Houston, and from Corpus Christi) - USA
- 1983
- Colorado Springs (detached from Denver, and from Pueblo) - USA
- 1983
- Lubbock (detached from Amarillo, and from San Angelo) - USA
- 1983
- Saint Josaphat in Parma [Ukr.] (detached from Philadelphia [Ukr.]) - USA
- 1984
- Palm Beach (detached from Miami, and from Orlando) - USA
- 1984
- Venice (detached from Miami, from Orlando, and from Saint Petersburg) - USA
- 1985
- Saint Thomas the Apostle of Detroit [Cald.](D, previously United States of America Ap.Ex.) - USA
- 1986
- Alexandria (new name, previously Alexandria-Shreveport) - USA
- 1986
- Shreveport (detached from Alexandria-Shreveport) - USA
- 1986
- Tyler (detached from Dallas, from Beaumont, and from Galveston-Houston) - USA
- 1987
- Saint George's in Canton [Rom.-Byz.] (new name, previously United States of America Ap.Ex.) - USA
- 1988
- Knoxville (detached from Nashville) - USA
- 1988
- Lexington (detached from Covington, and from Louisville) - USA
- 1994
- Our Lady of Lebanon of Los Angeles [Mar.] (detached from Saint Maron of Brooklyn [Mar.]) - USA
- 1995
- Las Vegas (detached from Reno-Las Vegas) - USA
- 1995
- Our Lady of Deliverance of Newark [Syr.] - USA
- 1995
- Reno (new name, previously Reno-Las Vegas) - USA
- 2000
- Laredo (detached from Corpus Christi, and from San Antonio) - USA
- 2001
- Saint Thomas of Chicago [Syr.-Malab.] - USA
- 2002
- Saint Peter the Apostle of San Diego [Cald.] (detached from Saint Thomas the Apostle of Detroit [Cald.]) - USA
- 2004
- Galveston-Houston (Metr., was part of the Metropolitan Province of San Antonio) - USA
- 2005
- Our Lady of Nareg in New York [Arm.] (elevated to Eparchy, and new name, previously United States and Canada [Arm.] (Ap.Ex.)) - USA
- 2009
- Holy Protection of Mary of Phoenix [Ruth.] (new name, previously Van Nuys [Ruth.]) - USA
- 2016
- Our Lady, Queen of Peace, of the United States and Canada [Syr.-Malank.]) - USA
- 2020
- Anchorage-Juneau (Metr.: result of merger of Anchorage (Metr.) and Juneau (D) – USA
- 2021
- Our Lady of Deliverance of the United States (new name, previously Our Lady of Deliverance of Newark) [Syr.] – USA