LRB-2266/1
MK:cjs:md
2011 - 2012 LEGISLATURE
July 11, 2011 - Introduced by Committee on Senate Organization. Referred to
Committee on Judiciary, Utilities, Commerce, and Government Operations.
SB148,1,4 1An Act to repeal 4.001 (2) to (5), 4.004 and 4.005; to renumber and amend
24.001 (1); to repeal and recreate 4.002, subchapter II of chapter 4 [precedes
34.009] and subchapter III of chapter 4 [precedes 4.01]; and to create 4.006 and
413.92 (1) (b) 3. e. of the statutes; relating to: legislative redistricting.
Analysis by the Legislative Reference Bureau
This bill redistricts, according to the number of inhabitants, the legislative
districts of this state based on the results of the 2010 federal decennial census of
population. The bill maintains the number of assembly districts at 99 and the
number of senate districts at 33. All assembly districts created by the bill are
composed of whole counties or municipalities or U.S. census tracts or blocks
(subunits of tracts) reflecting population and boundaries as of April 1, 2010. In
accordance with article IV, section 5, of the state constitution, no assembly district
created under the bill is divided in the creation of a senate district.
Current law requires legislative districts to be substantially equal in
population. The table below illustrates, for the assembly and senate districts
proposed under the bill, the numeric amount and the percentage by which the
districts with the smallest and largest populations deviate from the ideal population
for the same type of district. The population figures contained in the table are
derived from the results of the federal decennial census. - See PDF for table PDF
The bill also requires the legislative reference bureau, in enrolling any
redistricting plan that has passed both houses of the legislature, to attach an
updated appendix that includes all of the following: the population statistics for the
legislative districts created under the bill; a statewide map of the legislative districts
created under the bill; a map of the legislative districts created under the bill that
are in Milwaukee County; and, with certain exceptions, a detail map illustrating the
division of any city, village, or town among two or more legislative districts.
For further information, see the appendix printed at the end of this bill. The
appendix was prepared by the legislative reference bureau and contains the
following information: population statistics for the 33 senate districts and the 99
assembly districts, a statewide map of senate districts, a statewide map of assembly
districts (displayed over two pages), a map of Milwaukee County showing the
assembly district boundaries in that county, and a map of Dane County showing the
assembly district boundaries in that county. The population data contained in the
appendix is derived from the federal decennial census.
The people of the state of Wisconsin, represented in senate and assembly, do
enact as follows:
SB148, s. 1 1Section 1. 4.001 (1) of the statutes is renumbered 4.001 and amended to read:
SB148,2,8 24.001 Legislative redistricting; equal population districts established.
3Based on the certified official results of the 1980 census of population of Wisconsin,
4as received by this state from the U.S. bureau of the census on March 23, 1981, under
5P.L. 94-171, the
This state is divided into 33 senate districts, each composed of 3
6assembly districts. Each senate district shall be entitled to elect one member of the
7senate. Each assembly district shall be entitled to elect one representative to the
8assembly.
SB148, s. 2 9Section 2. 4.001 (2) to (5) of the statutes are repealed.
SB148, s. 3 10Section 3. 4.002 of the statutes is repealed and recreated to read:
SB148,3,2 114.002 County and municipal boundaries. In this chapter, reference to any
12county or municipality means that county or municipality as its boundaries exist on

1April 1 of the year of the federal decennial census on which the districting plans
2described under subchs. II and III are based.
SB148, s. 4 3Section 4. 4.004 of the statutes is repealed.
SB148, s. 5 4Section 5. 4.005 of the statutes is repealed.
SB148, s. 6 5Section 6. 4.006 of the statutes is created to read:
SB148,3,6 64.006 Definitions. In this chapter:
SB148,3,7 7(1) "Block" has the meaning given in s. 5.02 (1q).
SB148,3,11 8(2) "Ward" means a ward prescribed by a municipality based upon municipal
9boundaries in effect on April 1 of the year of the federal decennial census in
10accordance with the most recent revision of municipal wards under s. 5.15 upon
11which the districting plans described under subchs. II and III are based.
SB148, s. 7 12Section 7. Subchapter II of chapter 4 [precedes 4.009] of the statutes is
13repealed and recreated to read:
SB148,3,1414 chapter 4
SB148,3,1615 Subchapter II
16 Senate districts
SB148,3,18 174.009 Senate districts. (1) First senate district. The combination of the 1st,
182nd, and 3rd assembly districts constitutes the first senate district.
SB148,3,20 19(2) Second senate district. The combination of the 4th, 5th, and 6th assembly
20districts constitutes the 2nd senate district.
SB148,3,22 21(3) Third senate district. The combination of the 7th, 8th, and 9th assembly
22districts constitutes the 3rd senate district.
SB148,3,24 23(4) Fourth senate district. The combination of the 10th, 11th, and 12th
24assembly districts constitutes the 4th senate district.
SB148,4,2
1(5) Fifth senate district. The combination of the 13th, 14th, and 15th
2assembly districts constitutes the 5th senate district.
SB148,4,4 3(6) Sixth senate district. The combination of the 16th, 17th, and 18th
4assembly districts constitutes the 6th senate district.
SB148,4,6 5(7) Seventh senate district. The combination of the 19th, 20th, and 21st
6assembly districts constitutes the 7th senate district.
SB148,4,8 7(8) Eighth senate district. The combination of the 22nd, 23rd, and 24th
8assembly districts constitutes the 8th senate district.
SB148,4,10 9(9) Ninth senate district. The combination of the 25th, 26th, and 27th
10assembly districts constitutes the 9th senate district.
SB148,4,12 11(10) Tenth senate district. The combination of the 28th, 29th, and 30th
12assembly districts constitutes the 10th senate district.
SB148,4,14 13(11) Eleventh senate district. The combination of the 31st, 32nd, and 33rd
14assembly districts constitutes the 11th senate district.
SB148,4,16 15(12) Twelfth senate district. The combination of the 34th, 35th, and 36th
16assembly districts constitutes the 12th senate district.
SB148,4,18 17(13) Thirteenth senate district. The combination of the 37th, 38th, and 39th
18assembly districts constitutes the 13th senate district.
SB148,4,20 19(14) Fourteenth senate district. The combination of the 40th, 41st, and 42nd
20assembly districts constitutes the 14th senate district.
SB148,4,22 21(15) Fifteenth senate district. The combination of the 43rd, 44th, and 45th
22assembly districts constitutes the 15th senate district.
SB148,4,24 23(16) Sixteenth senate district. The combination of the 46th, 47th, and 48th
24assembly districts constitutes the 16th senate district.
SB148,5,2
1(17) Seventeenth senate district. The combination of the 49th, 50th, and 51st
2assembly districts constitutes the 17th senate district.
SB148,5,4 3(18) Eighteenth senate district. The combination of the 52nd, 53rd, and 54th
4assembly districts constitutes the 18th senate district.
SB148,5,6 5(19) Nineteenth senate district. The combination of the 55th, 56th, and 57th
6assembly districts constitutes the 19th senate district.
SB148,5,8 7(20) Twentieth senate district. The combination of the 58th, 59th, and 60th
8assembly districts constitutes the 20th senate district.
SB148,5,10 9(21) Twenty-first senate district. The combination of the 61st, 62nd, and
1063rd assembly districts constitutes the 21st senate district.
SB148,5,12 11(22) Twenty-second senate district. The combination of the 64th, 65th, and
1266th assembly districts constitutes the 22nd senate district.
SB148,5,14 13(23) Twenty-third senate district. The combination of the 67th, 68th, and
1469th assembly districts constitutes the 23rd senate district.
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