| Year | State(s) | (Arch)Diocese of ... | Formed from... | % Correct |
|---|---|---|---|---|
| 1789 | MD | Baltimore | Prefecture Apostolic of United States of America | 100%
|
| 1808 | MA | Boston | Diocese of Baltimore | 100%
|
| 1847 | NY | Buffalo | Diocese of New York | 100%
|
| 1820 | SC | Charleston | Archdiocese of Baltimore | 100%
|
| 1843 | IL | Chicago | Dioceses of St. Louis & Vincennes | 100%
|
| 1821 | OH | Cincinnati | Diocese of Bardstown | 100%
|
| 1833 | MI | Detroit | Diocese of Cincinnati | 100%
|
| 1843 | CT | Hartford | Diocese of Boston | 100%
|
| 1847 | TX | Houston-Galveston (as Galveston) | Vicariate Apostolic of Texas (from Diocese of Linares) | 100%
|
| 1834 | IN | Indianapolis (as Vincennes) | Diocese of Bardstown | 100%
|
| 1843 | AR | Little Rock | Diocese of St. Louis | 100%
|
| 1808 | KY | Louisville (as Bardstown) | Diocese of Baltimore | 100%
|
| 1843 | WI | Milwaukee | Diocese of Detroit | 100%
|
| 1793 | LA | New Orleans (as Louisiana) | Diocese of San Cristobal de la Habana | 100%
|
| 1808 | NY | New York | Diocese of Baltimore | 100%
|
| 1808 | PA | Philadelphia | Diocese of Baltimore | 100%
|
| 1843 | PA | Pittsburgh | Diocese of Philadelphia | 100%
|
| 1846 | OR | Portland (as Oregon City) | Vicariate Apostolic of Oregon Territory (from Dioceses of Baltimore & Quebec) | 100%
|
| 1820 | VA | Richmond | Archdiocese of Baltimore | 100%
|
| 1850 | GA | Savannah | Dioceses of Charleston & Mobile | 100%
|
| 1826 | MO | St. Louis | Dioceses of Durango & Louisiana and the Two Floridas | 100%
|
| 1847 | NY | Albany | Diocese of New York | 92%
|
| 1847 | OH | Cleveland | Diocese of Cincinnati | 92%
|
| 1837 | MS | Jackson (as Natchez) | Diocese of New Orleans | 92%
|
| 1837 | TN | Nashville | Diocese of Bardstown | 92%
|
| 1850 | MN | Saint Paul and Minneapolis (as Saint Paul) | Dioceses of Dubuque & Milwaukee | 92%
|
| 1850 | WA | Seattle (as Nesqually) | Archdiocese of Oregon City | 92%
|
| 1850 | WV | Wheeling-Charleston | Diocese of Richmond | 92%
|
| 1829 | AL | Mobile | Vicariate Apostolic of Alabama and the Floridas (from Diocese of Louisiana) | 85%
|
| 1853 | VT | Burlington | Diocese of Boston | 77%
|
| 1868 | OH | Columbus | Archdiocese of Cincinnati | 77%
|
| 1837 | IA | Dubuque | Diocese of St. Louis | 77%
|
| 1853 | PA | Erie | Diocese of Pittsburgh | 77%
|
| 1857 | IN | Fort Wayne-South Bend (as Fort Wayne) | Diocese of Vincennes | 77%
|
| 1868 | WI | Green Bay | Diocese of Milwaukee | 77%
|
| 1840 | CA | Monterey (as California) | Diocese of Sonora | 77%
|
| 1853 | ME | Portland | Diocese of Boston | 77%
|
| 1853 | CA | San Francisco | Diocese of Monterey | 77%
|
| 1853 | NM | Santa Fe | Vicariate Apostolic of New Mexico (from Diocese of Durango) | 77%
|
| 1853 | IL | Springfield (as Quincy) | Diocese of Chicago | 77%
|
| 1870 | FL | St. Augustine | Vicariate Apostolic of Florida (from Diocese of Savannah) | 77%
|
| 1868 | DE / MD | Wilmington | Diocese of Baltimore & Philadelphia | 77%
|
| 1951 | AK | Anchorage-Juneau (as Juneau) | Vicariate Apostolic of Alaska | 69%
|
| 1893 | ID | Boise | Vicariate Apostolic of Idaho (from Archdiocese of Oregon City) | 69%
|
| 1853 | NY | Brooklyn | Archdiocese of New York | 69%
|
| 1887 | WY | Cheyenne | Diocese of Omaha | 69%
|
| 1890 | TX | Dallas | Diocese of Galveston | 69%
|
| 1887 | CO | Denver | Vicariate Apostolic of Colorado (from Diocese of Santa Fe) | 69%
|
| 1889 | ND | Fargo (as Jamestown) | Vicariate Apostolic of Dakota (from Diocese of St. Paul) | 69%
|
| 1939 | NM / AZ | Gallup | Dioceses of Santa Fe & Tucson | 69%
|
| 1882 | MI | Grand Rapids | Diocese of Detroit | 69%
|
| 1868 | PA | Harrisburg | Diocese of Philadelphia | 69%
|
| 1884 | MT | Helena | Vicariate Apostolic of Montana | 69%
|
| 1941 | HI | Honolulu | Vicariate Apostolic of Hawaiian Islands | 69%
|
| 1877 | KS | Kansas City (as Leavenworth) | Vicariate Apostolic of Kansas (from Diocese of New Orleans) | 69%
|
| 1868 | WI | La Crosse | Diocese of Milwaukee | 69%
|
| 1887 | NE | Lincoln | Diocese of Omaha | 69%
|
| 1853 | NJ | Newark | Dioceses of New York & Philadelphia | 69%
|
| 1905 | OK | Oklahoma City (as Oklahoma) | Vicariate Apostolic of Indian Territory (from Diocese of Little Rock) | 69%
|
| 1885 | NE | Omaha | Vicariate Apostolic of Nebraska (from Diocese of New Orleans) | 69%
|
| 1872 | RI | Providence | Dioceses of Boston & Hartford | 69%
|
| 1868 | NC | Raleigh | Diocese of Charleston | 69%
|
| 1902 | SD | Rapid City (as Lead) | Diocese of Sioux Falls | 69%
|
| 1931 | NV | Reno | Dioceses of Salt Lake & Sacramento | 69%
|
| 1868 | NY | Rochester | Diocese of Buffalo | 69%
|
| 1891 | UT | Salt Lake City | Vicariate Apostolic of Utah (from Archdiocese of San Francisco) | 69%
|
| 1874 | TX | San Antonio | Diocese of Galveston | 69%
|
| 1889 | SD | Sioux Falls | Vicariate Apostolic of Dakota (from Diocese of St. Paul) | 69%
|
| 1913 | WA | Spokane | Diocese of Seattle | 69%
|
| 1870 | MA | Springfield | Diocese of Boston | 69%
|
| 1910 | OH | Toledo | Diocese of Cleveland | 69%
|
| 1881 | NJ | Trenton | Diocese of Newark | 69%
|
| 1897 | AZ | Tucson | Vicariate Apostolic of Arizona (from Diocese of Santa Fe) | 69%
|
| 1947 | DC / MD | Washington | Archdiocese of Baltimore-Washington | 69%
|
| 1956 | GA | Atlanta | Diocese of Savannah-Atlanta | 62%
|
| 1912 | TX | Corpus Christi | Vicariate Apostolic of Brownsville (from Diocese of Galveston) | 62%
|
| 1853 | KY | Covington | Diocese of Louisville | 62%
|
| 1881 | IA | Davenport | Diocese of Dubuque | 62%
|
| 1911 | IA | Des Moines | Diocese of Davenport | 62%
|
| 1962 | AK | Fairbanks | Vicariate Apostolic of Alaska (from Dioceses of New Westminster & Victoria) | 62%
|
| 1856 | IN | Gary | Diocese of Fort Wayne | 62%
|
| 1904 | MT | Great Falls-Billings (as Great Falls) | Diocese of Helena | 62%
|
| 1956 | MO | Jefferson City | Dioceses of Kansas City, St. Joseph, St. Louis | 62%
|
| 1880 | MO | Kansas City-Saint Joseph (as Kansas City) | Archdiocese of St. Louis | 62%
|
| 1937 | MI | Lansing | Diocese of Detroit | 62%
|
| 1995 | NV | Las Vegas | Diocese of Reno-Las Vegas | 62%
|
| 1946 | WI | Madison | Dioceses of Green Bay, La Crosse, Milwaukee | 62%
|
| 1884 | NH | Manchester | Diocese of Portland | 62%
|
| 1970 | TN | Memphis | Diocese of Nashville | 62%
|
| 1958 | FL | Miami | Diocese of St. Augustine | 62%
|
| 1875 | IL | Peoria | Diocese of Chicago | 62%
|
| 1969 | AZ | Phoenix | Dioceses of Gallup & Tucson | 62%
|
| 1886 | CA | Sacramento | Diocese of San Francisco | 62%
|
| 1889 | MN | Saint Cloud | Vicariate Apostolic of Northern Minnesota (from Diocese of St. Paul) | 62%
|
| 1944 | OH | Steubenville | Diocese of Columbus | 62%
|
| 1972 | OK | Tulsa | Diocese of Oklahoma City and Tulsa | 62%
|
| 1950 | MA | Worcester | Diocese of Springfield | 62%
|
| 1943 | OH | Youngstown | Diocese of Cleveland | 62%
|
| 1853 | LA | Alexandria (as Natchitoches) | Archdiocese of New Orleans | 54%
|
| 1974 | VA | Arlington | Diocese of Richmond | 54%
|
| 1977 | MS | Biloxi | Diocese of Natchez-Jackson | 54%
|
| 1909 | ND | Bismarck | Diocese of Fargo | 54%
|
| 1953 | CT | Bridgeport | Diocese of Hartford | 54%
|
| 1937 | NJ | Camden | Diocese of Trenton | 54%
|
| 1983 | CO | Colorado Springs | Dioceses of Denver & Pueblo | 54%
|
| 1889 | MN | Duluth | Vicariate Apostolic of Northern Minnesota | 54%
|
| 1914 | TX | El Paso | Dioceses of Dallas, San Antonio, & Tucson | 54%
|
| 1944 | IN | Evansville | Diocese of Indianapolis | 54%
|
| 1970 | MI | Gaylord | Dioceses of Grand Rapids & Saginaw | 54%
|
| 1948 | IL | Joliet | Dioceses of Chicago, Peoria, Rockford | 54%
|
| 1970 | MI | Kalamazoo | Dioceses of Grand Rapids & Lansing | 54%
|
| 1922 | CA | Los Angeles (as Los Angeles-San Diego) | Diocese of Monterey-Los Angeles | 54%
|
| 1857 | MI | Marquette (as Sault Sainte Marie) | Vicariate Apostolic of Upper Michigan (from Diocese of Detroit) | 54%
|
| 1981 | NJ | Metuchen | Diocese of Trenton | 54%
|
| 1968 | FL | Orlando | Dioceses of St. Augustine & Miami | 54%
|
| 1941 | CO | Pueblo | Diocese of Denver | 54%
|
| 1908 | IL | Rockford | Archdiocese of Chicago | 54%
|
| 1938 | MI | Saginaw | Dioceses of Detroit & Grand Rapids | 54%
|
| 1868 | PA | Scranton | Diocese of Philadelphia | 54%
|
| 1902 | IA | Sioux City | Archdiocese of Dubuque | 54%
|
| 1956 | MO | Springfield-Cape Girardeau | Dioceses of Kansas City, St. Louis | 54%
|
| 1962 | CA | Stockton | Dioceses of Sacramento & San Francisco | 54%
|
| 1887 | KS | Wichita | Diocese of Leavenworth | 54%
|
| 1889 | MN | Winona-Rochester (as Winona) | Archdiocese of St. Paul | 54%
|
| 1951 | WA | Yakima | Dioceses of Seattle & Spokane | 54%
|
| 1961 | PA | Allentown | Archdiocese of Philadelphia | 46%
|
| 1901 | PA | Altoona-Johnstown (as Altoona) | Dioceses of Harrisburg & Pittsburgh | 46%
|
| 1926 | TX | Amarillo | Dioceses of Dallas, El Paso, San Antonio | 46%
|
| 1903 | OR | Baker (as Baker City) | Archdiocese of Oregon City | 46%
|
| 1966 | TX | Beaumont | Diocese of Galveston-Houston | 46%
|
| 1887 | IL | Belleville | Diocese of Alton | 46%
|
| 1969 | AL | Birmingham | Diocese of Mobile-Birmingham | 46%
|
| 1965 | TX | Brownsville | Diocese of Corpus Christi | 46%
|
| 1971 | NC | Charlotte | Diocese of Raleigh | 46%
|
| 1912 | NE | Grand Island (as Kearney) | Diocese of Omaha | 46%
|
| 1977 | LA | Houma-Thibodaux | Archdiocese of New Orleans | 46%
|
| 1988 | TN | Knoxville | Diocese of Nashville | 46%
|
| 1944 | IN | Lafayette | Diocese of Fort Wayne | 46%
|
| 1982 | NM | Las Cruces | Dioceses of El Paso & Santa Fe | 46%
|
| 1988 | KY | Lexington | Dioceses of Louisville & Covington | 46%
|
| 1957 | MN | New Ulm | Archdiocese of St. Paul | 46%
|
| 1953 | CT | Norwich | Diocese of Hartford | 46%
|
| 1962 | CA | Oakland | Archdiocese of San Francisco | 46%
|
| 1872 | NY | Ogdensburg | Diocese of Albany | 46%
|
| 1976 | CA | Orange | Archdiocese of Los Angeles | 46%
|
| 1937 | KY | Owensboro | Diocese of Louisville | 46%
|
| 1937 | NJ | Paterson | Diocese of Newark | 46%
|
| 1957 | NY | Rockville Centre | Diocese of Brooklyn | 46%
|
| 1936 | CA | San Diego | Diocese of Los Angeles-San Diego | 46%
|
| 1968 | FL | St. Petersburg | Dioceses of Miami & St. Augustine | 46%
|
| 1905 | WI | Superior | Dioceses of Green Bay & La Crosse | 46%
|
| 1886 | NY | Syracuse | Diocese of Albany | 46%
|
| 1947 | TX | Austin | Dioceses of Dallas, Galveston, San Antonio | 38%
|
| 1951 | KS | Dodge City | Diocese of Wichita | 38%
|
| 1904 | MA | Fall River | Diocese of Providence | 38%
|
| 1951 | PA | Greensburg | Diocese of Pittsburgh | 38%
|
| 1918 | LA | Lafayette | Archdiocese of New Orleans | 38%
|
| 2000 | TX | Laredo | Dioceses of Corpus Christi & San Antonio | 38%
|
| 1983 | TX | Lubbock | Dioceses of San Angelo & Amarillo | 38%
|
| 1984 | FL | Palm Beach | Dioceses of Miami & Orlando | 38%
|
| 1975 | FL | Pensacola-Tallahassee | Diocese of St. Augustine | 38%
|
| 1887 | KS | Salina (as Concordia) | Diocese of Leavenworth | 38%
|
| 1961 | TX | San Angelo | Dioceses of Amarillo, Austin, El Paso, Dallas-Fort Worth | 38%
|
| 1978 | CA | San Bernardino | Diocese of San Diego | 38%
|
| 1962 | CA | Santa Rosa | Dioceses of Sacramento & San Francisco | 38%
|
| 1986 | TX | Tyler | Dioceses of Beaumont, Dallas, Galveston-Houston | 38%
|
| 1961 | LA | Baton Rouge | Archdiocese of New Orleans | 31%
|
| 1909 | MN | Crookston | Diocese of Duluth | 31%
|
| 1969 | TX | Fort Worth | Diocese of Dallas-Fort Worth | 31%
|
| 1980 | LA | Lake Charles | Diocese of Lafayette | 31%
|
| 1986 | LA | Shreveport | Diocese of Alexandria-Shreveport | 31%
|
| 1984 | FL | Venice | Dioceses of Miami, Orlando, St. Petersburg | 31%
|
| 1982 | TX | Victoria | Dioceses of Corpus Christi, Galveston-Houston, San Antonio | 31%
|
| 1981 | CA | San Jose | Archdiocese of San Francisco | 23%
|
| 1967 | CA | Fresno | Diocese of Monterey-Fresno | 0%
|