Question: What is the Alabama courthouse whose city is the county seat of Calhoun County ?

text: List of United States federal courthouses in Alabama
Courthouses

Following is a list of current and former courthouses of the United States federal court system located in Alabama. Each entry indicates the name of the building along with an image, if available, its location and the jurisdiction it covers, the dates during which it was used for each such jurisdiction, and, if applicable the person for whom it was named, and the date of renaming. Dates of use will not necessarily correspond with the dates of construction or demolition of a building, as pre-existing structures may be adapted for court use, and former court buildings may later be put to other uses. Also, the official name of the building may be changed at some point after its use as a federal court building has been initiated.
Courthouse City Street address Jurisdiction Dates of use Named for
Federal Building and U.S . Courthouse Anniston 1129 Noble Street N.D. Ala 1906-present n/a
U.S. Court House & Post Office Birmingham Second Avenue North and 18th Street N.D. Ala 1893-1921 ( razed in the early 20th century ) n/a
Robert S. Vance Federal Building & U.S . Courthouse Birmingham 1800 5th Avenue North N.D. Ala 1921-present Court of Appeals judge Robert Smith Vance ( 1990 )
Hugo L. Black U.S . Courthouse Birmingham 1729 Fifth Avenue North N.D. Ala 1987-present U.S . Senator and Supreme Court Justice Hugo Black ( 1987 )
Seybourn H. Lynne U.S . Courthouse & Post Office Decatur 400 Well Street N.D. Ala 1961-present District Court judge Seybourn Harris Lynne ( 1995 )
Federal Building and U.S . Courthouse Dothan 100 West Troy Street M.D . Ala 1911-present n/a
John McKinley Federal Building Florence 210 North Seminary Street N.D. Ala 1913-present U.S . Senator and Supreme Court Justice John McKinley ( 1998 )
Federal Building & U.S . Courthouse Gadsden 600 Broad Street N.D. Ala 1910-2012 n/a
U.S . Courthouse and Post Office Huntsville Corner of Eustis Avenue and Greene Street N.D. Ala 1890-1936 ( razed in 1954 ) n/a
U.S . Courthouse and Post Office Huntsville 101 East Holmes Avenue N.D. Ala 1936-present n/a
U.S . Custom House & Post Office Mobile 107 St. Francis St S.D . Ala 1856-1934 Razed in 1963 ; now the site of the RSA-BankTrust Building n/a
John Archibald Campbell U.S . Courthouse Mobile 113 St. Joseph Street S.D . Ala 1934-present Supreme Court Justice John Archibald Campbell ( 1981 )
U.S. Court House & Post Office Montgomery 2 South Lawrence Street M.D . Ala. 5th Circuit 1885-1933 n/a
Frank M. Johnson , Jr. Federal Bldg & U.S . Courthouse Montgomery 15 Lee Street M.D . Ala 1932-present District Court judge Frank Minis Johnson ( 1992 )
G.W . Andrews Federal Building and U.S . Courthouse Opelika 701 Avenue A M.D . Ala 1918-present U.S. Rep. George W. Andrews ( 1968 )
Federal Building & U.S . Courthouse Selma 908 Alabama Avenue S.D . Ala 1909-present n/a
U.S. Post Office & Court House Tuscaloosa 2201 University Boulevard M.D . Ala 1910-1968 n/a
Federal Building & U.S . Courthouse Tuscaloosa 1118 Greensboro Avenue N.D. Ala c. 1968-2011 n/a
U.S. Federal Building and Courthouse Tuscaloosa 2005 University Boulevard N.D. Ala 2011-present n/a