| August 9, 1846 9 Stat. 56 |
Congress organized Wisconsin as one judicial district and authorized one judgeship for the U.S. district court. The U.S. district court in Wisconsin, not being assigned to a judicial circuit, was granted the same jurisdiction as U.S. circuit courts, except in appeals and writs of error, which were the jurisdiction of the Supreme Court. The act became effective upon the admission of the State of Wisconsin on May 29, 1848. |
| July 15, 1862 12 Stat. 576 |
Congress reorganized the circuits, repealed the circuit court jurisdiction of the U.S. District Court for the District of Wisconsin, and assigned the district to the Eighth Circuit. |
| February 9, 1863 12 Stat. 648 |
Congress assigned the District of Wisconsin to the Ninth Circuit. |
| July 23, 1866 14 Stat. 209 |
Congress reorganized the circuits and assigned the District of Wisconsin to the Seventh Circuit. |
| June 30, 1870 16 Stat. 171 |
Wisconsin divided into two judicial districts, the Eastern and the Western, with one judgeship authorized for each district. The sitting judge was assigned to the Eastern District. |
| February 10, 1954 68 Stat. 8 |
One additional judgeship authorized for the Eastern District. |
| March 18, 1966 80 Stat. 75 |
Temporary judgeship authorized for the Eastern District. |
| June 2, 1970 84 Stat. 294 |
Temporary judgeship authorized in 1966 was made permanent. |
| October 20, 1978 92 Stat. 1629 |
One additional judgeship authorized for each district. |
| December 21, 2000 114 Stat. 2762 |
One additional judgeship authorized for the Eastern District. |