Wisconsin Statutes

Wis. Stat. § 4.001 (2026)

Legislative districts established

✓ current as of July 2026
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4.0014.001Legislative districts established. This state is divided into 33 senate districts, each composed of 3 assembly districts. Each senate district shall be entitled to elect one member of the senate. Each assembly district shall be entitled to elect one representative to the assembly.
4.001 HistoryHistory: 1983 a. 29, 192; 2011 a. 43.
Notes of Decisions
Cited in 14 cases (8 in the last 5 years), 1982–2023 · leading case: Gill v. Whitford, 585 U.S. 48 (2018).
Gill v. Whitford, 585 U.S. 48 (2018). “See §5; Wis. Stat. §4.001 (2011). The Wisconsin Constitution gives the legislature the responsibility to “apportion and district anew the mem­ bers of the senate and assembly” at the first session fol­ lowing each census.”
Whitford v. Gill, 218 F. Supp. 3d 837 (W.D. Wis. 2016). · cites it 2× “” Wis. Stat. § 4.001 . The Wisconsin Constitution directs the Wisconsin legislature, “[a]t its first session after each enumeration made by the authority of the United States,” to “apportion and district anew the members of the senate and assembly, according to the number of…”
Baldus v. Members of the Wisconsin Gov't Acct. Bd., 849 F. Supp. 2d 840 (E.D. Wis. 2012). · cites it 2× “This bipartisan tradition has not, unfortunately, exempted Wisconsin from the contentious side of the redistricting process that takes place every ten years in the wake of the United States Census.”
Prosser v. Elections Bd., 793 F. Supp. 859 (W.D. Wis. 1992). · cites it 2× “Wis.Stat. §§ 4.001(3), 5.15(l)(b). We are not persuaded by the plaintiffs’ argument that the Wisconsin constitution requires literal contiguity.”
Rebecca Clarke v. Wisconsin Elections Comm'n, 2023 WI 79 (Wis. 2023). · cites it 7× “Under these circumstances, we would "do Namely, Wis. Stat. §§ 4.001 (3); 5.15(1)(b) (1991-92).”
Rebecca Clarke v. Wisconsin Elections Comm'n, 2023 WI 70 (Wis. 2023). · cites it 2× “" Wis. Stat. § 4.001 (2) (1971-72). 33 No. 2023AP1399-OA redistricting impasse explicitly considered this issue and adopted politically (but not physically) contiguous maps.”
Billie Johnson v. Wisconsin Elections Comm'n, 2022 WI 14 (Wis. 2022). · cites it 3× “]" (citing Wis. Stat. § 4.001 , et seq.)). 21 No. 2021AP1450-OA.”
Rebecca Clarke v. Wisconsin Elections Comm'n, 2023 WI 79 (Wis. 2023). · cites it 7× “Under these circumstances, we would "do Namely, Wis. Stat. §§ 4.001 (3); 5.15(1)(b) (1991-92).”
Billie Johnson v. Wisconsin Elections Comm'n, 2022 WI 14 (Wis. 2022). · cites it 3× “]" (citing Wis. Stat. § 4.001 , et seq.)). 21 No. 2021AP1450-OA.”
Wisconsin State AFL-CIO v. Elections Bd., 543 F. Supp. 630 (E.D. Wis. 1982). · cites it 2× “See Wis. Stat. § 4.001 (1). The 1972 legislative elections and subsequent legislative elections have been conducted under the district boundaries established by the Wisconsin Legislature in 1972.”
Wisconsin State Afl-cio v. Elections Bd., 543 F. Supp. 630 (E.D. Wis. 1982). · cites it 2× “See Wis. Stat. § 4.001 (1). The 1972 legislative elections and subsequent legislative elections have been conducted under the district boundaries established by the Wisconsin Legislature in 1972.”
Billie Johnson v. Wisconsin Elections Comm'n, 2021 WI 87 (Wis. 2021). · cites it 2× “See also Wis. Stat. § 4.001 ("This state is divided into 33 senate districts, each composed of 3 assembly districts.”
— Wis. Stat. § 4.001(3) — 3 cases
Prosser v. Elections Bd., 793 F. Supp. 859 (W.D. Wis. 1992). “Wis.Stat. §§ 4.001(3), 5.15(l)(b). We are not persuaded by the plaintiffs’ argument that the Wisconsin constitution requires literal contiguity.”
Rebecca Clarke v. Wisconsin Elections Comm'n, 2023 WI 79 (Wis. 2023). “Under these circumstances, we would "do Namely, Wis. Stat. §§ 4.001 (3); 5.15(1)(b) (1991-92).”
Rebecca Clarke v. Wisconsin Elections Comm'n, 2023 WI 79 (Wis. 2023). “Under these circumstances, we would "do Namely, Wis. Stat. §§ 4.001 (3); 5.15(1)(b) (1991-92).”
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