States of Jersey Electoral Reform Models

P.7/2020 Amd 1

Reform of the Composition of the States Assembly Amd 1
by Montfort Tadier

Constitution:

Senators: 0
Constables: 12
Deputies: 34
Total: 46

Withdrawn

Representation Data:

Deputies Per District

Constituency	Population	Deputies	Average Representation	Difference from Average	Weighting to Average
District 1 St Helier South	10920	4	2730	-13.11%	1.15
District 2 St Helier Central	13140	5	2628	-16.36%	1.20
District 3 St Helier North	12480	5	2496	-20.56%	1.26
District 4 St Saviour	14820	5	2964	-5.67%	1.06
District 5 St Clement	10060	4	2515	-19.96%	1.25
District 6 St Brelade	11540	4	2885	-8.18%	1.09
District 7 St Mary / St Ouen / St Peter	11890	2	5945	89.21%	0.53
District 8 St John / St Lawrence / Trinity	12460	2	6230	98.28%	0.50
District 9 Grouville / St Martin	9490	3	3164	0.70%	0.99
	106800	34	3142

Range:

Most over-represented: District 3 : St Helier North, -20.56%
Most under-represented: District 8 : St John / St Lawrence / Trinity, 98.28%
Number of representatives per citizen: 2 — 5

District Representatives Proportionally

Constituency	Population	Ds & Cs	Average Representation	Difference from Average	Weighting to Average
District 1 St Helier South	10920	4.33	2522	8.61%	0.92
District 2 St Helier Central	13140	5.33	2466	6.20%	0.94
District 3 St Helier North	12480	5.33	2342	0.86%	0.99
District 4 St Saviour	14820	6	2470	6.37%	0.94
District 5 St Clement	10060	5	2012	-13.35%	1.15
District 6 St Brelade	11540	5	2308	-0.60%	1.01
District 7 St Mary / St Ouen / St Peter	11890	5	2378	2.41%	0.98
District 8 St John / St Lawrence / Trinity	12460	5	2492	7.32%	0.93
District 9 Grouville / St Martin	9490	5	1898	-18.26%	1.22
	106800	46	2322

Range:

Most over-represented: District 9 : Grouville / St Martin, -18.26%
Most under-represented: District 1 : St Helier South, 8.61%
Number of representatives per citizen: 4.33 — 6

District Representation

Constituency	Population	Ds & Cs	Average Representation	Difference from Average	Weighting to Average
District 1 St Helier South	10920	5	2184	-5.94%	1.06
District 2 St Helier Central	13140	6	2190	-5.68%	1.06
District 3 St Helier North	12480	6	2080	-10.42%	1.12
District 4 St Saviour	14820	6	2470	6.37%	0.94
District 5 St Clement	10060	5	2012	-13.35%	1.15
District 6 St Brelade	11540	5	2308	-0.60%	1.01
District 7 St Mary / St Ouen / St Peter	11890	3	3964	70.71%	0.59
District 8 St John / St Lawrence / Trinity	12460	3	4154	78.90%	0.56
District 9 Grouville / St Martin	9490	4	2373	2.20%	0.98
	106800	46	2322

Range:

Most over-represented: District 5 : St Clement, -13.35%
Most under-represented: District 8 : St John / St Lawrence / Trinity, 78.90%
Number of representatives per citizen: 3 — 6

Parish Representatives

Constituency	Population	Ds & Cs	Average Representation	Difference from Average	Weighting to Average
Grouville	5320	4	1330	-42.72%	1.75
St Brelade	11540	5	2308	-0.60%	1.01
St Clement	10060	5	2012	-13.35%	1.15
St Helier	36540	15	2436	4.91%	0.95
St John	3180	3	1060	-54.35%	2.19
St Lawrence	5850	3	1950	-16.02%	1.19
St Martin	4170	4	1043	-55.08%	2.23
St Mary	1990	3	664	-71.40%	3.50
St Ouen	4450	3	1484	-36.09%	1.56
St Peter	5450	3	1817	-21.75%	1.28
St Saviour	14820	6	2470	6.37%	0.94
Trinity	3430	3	1144	-50.73%	2.03
	106800	46	2322

Range:

Most over-represented: St Mary, -71.40%
Most under-represented: St Saviour, 6.37%
Number of representatives per citizen: 3 — 15

Electoral Models:

	Districts	Members			Range of Difference from Average
Model		D	C	S	Deputies Only	District Proportionally	District Representation	Parish Representatives
Old Model	17	29	12	8	-46% — 48%	-62% — 42%	-62% — 29%	-62% — 29%
P.2/2025 (Current Model)	9	28	12	9	-14% — 24%	-26% — 40%	-6% — 19%	-81% — 24%
- P.2/2025 Amd 1	9	37	0	12	-13% — 10%	-13% — 10%	-13% — 10%	-83% — 3%
- P.2/2025 Amd 1 Amd	9	37	0	8	-13% — 10%	-13% — 10%	-13% — 10%	-83% — 3%
- P.2/2025 Amd 4	9	28	12	7	-14% — 24%	-26% — 40%	-6% — 19%	-81% — 24%
P.17/2021 Amd 2	9	28	12	8	-14% — 24%	-26% — 40%	-6% — 19%	-81% — 24%
- P.17/2021 Amd 2 Amd	9	31	12	8	-10% — 15%	-28% — 32%	-4% — 20%	-80% — 23%
P.139/2020 (Previous Model)	9	37	12	0	-13% — 10%	-22% — 32%	-8% — 15%	-82% — 20%
- P.139/2020 Amd 1	9	52	0	0	-8% — 7%	-8% — 7%	-8% — 7%	-84% — 5%
- P.139/2020 Amd 2	14	49	0	0	-54% — 25%	-54% — 25%	-54% — 25%	-54% — 20%
- P.139/2020 Amd 5 *⁴	6	28	12	8	-20% — 41%	-32% — 19%	-2% — 61%	-85% — 11%
- P.139/2020 Amd 6	9	37	12	0	-24% — 106%	-13% — 13%	-17% — 82%	-70% — 6%
- P.139/2020 Amd 7	17	33	12	8	-39% — 68%	-58% — 27%	-58% — 15%	-58% — 18%
P.7/2020 *⁵	9	37	12	0	-18% — 14%	-27% — 39%	-13% — 21%	-82% — 29%
- P.7/2020 Amd 1	9	34	12	0	-21% — 99%	-18% — 9%	-13% — 79%	-71% — 6%
- P.7/2020 Amd 2	9	40	12	0	-18% — 17%	-23% — 20%	-11% — 21%	-81% — 20%
P.126/2019	9	46	0	0	-18% — 13%	-18% — 13%	-18% — 13%	-83% — 6%
- P.126/2019 Amd 1 *⁵	9	37	12	0	-18% — 14%	-27% — 39%	-13% — 21%	-82% — 29%
P.133/2016 *¹	6	32	12	0	-9% — 17%	-29% — 16%	6% — 34%	-86% — 16%
- P.133/2016 Amd 1	6	20	12	6	-15% — 22%	-34% — 22%	9% — 46%	-85% — 22%
- P.133/2016 Amd 1 Amd *³	6	26	12	6	-11% — 19%	-31% — 18%	8% — 39%	-86% — 18%
- P.133/2016 Amd 2 *⁴	6	28	12	8	-20% — 41%	-32% — 19%	-2% — 61%	-85% — 11%
- P.133/2016 Amd 4	6	26	12	8	-11% — 19%	-31% — 18%	8% — 39%	-86% — 18%
P.117/2013	7	28	12	7	-28% — 28%	-28% — 14%	-18% — 46%	-85% — 11%
P.116/2013	17	29	12	6	-35% — ???	-24% — 32%	-32% — 32%	-24% — 32%
P.98/2013	12	49	0	0	-27% — 25%	-27% — 25%	-27% — 25%	-27% — 25%
P.94/2013	6	34	12	0	-17% — 24%	-26% — 12%	-2% — 40%	-86% — 6%
- P.94/2013 Amd 1 *²	6	27	12	6	-23% — 30%	-19% — 11%	-5% — 43%	-82% — 8%
- P.94/2013 Amd 1 Amd *³	6	26	12	6	-11% — 19%	-31% — 18%	8% — 39%	-86% — 18%
- P.94/2013 Amd 2	5	35	12	0	insufficient population data
P.93/2013 *¹	6	32	12	0	-9% — 17%	-29% — 16%	6% — 34%	-86% — 16%
- P.93/2013 Amd 1 *²	6	27	12	6	-23% — 30%	-19% — 11%	-5% — 43%	-82% — 8%
- P.93/2013 Amd 1 Amd *³	6	26	12	6	-11% — 19%	-31% — 18%	8% — 39%	-86% — 18%
- P.93/2013 Amd 2	4	32	12	0	insufficient population data
- P.93/2013 Amd 3	17	31	12	8	-42% — 58%	-60% — 32%	-60% — 10%	-60% — 23%
P.2/2011	5	21	12	8	-7% — 11%	-35% — 41%	17% — 41%	-88% — 41%
- P.2/2011 Amd 1	5	21	12	8	-17% — 20%	-35% — 61%	5% — 61%	-88% — 61%
- P.2/2011 Amd 2	5	21	12	8	-28% — 272%	-5% — 5%	3% — 192%	-74% — 3%
- P.2/2011 Amd 3	17	28	12	8	-48% — 53%	-63% — 39%	-63% — 26%	-63% — 26%
P.72/2009	6	37	12	0	-11% — 9%	-21% — 29%	1% — 24%	-87% — 29%
- P.72/2009 Amd 1	6	49	0	0	no model provided
- P.72/2009 Amd 2	12	49	0	0	no model provided
- P.72/2009 Amd 2 Amd	12	47	0	0	-56% — 20%	-56% — 20%	-56% — 20%	-56% — 20%
- P.72/2009 Amd 3	6	35	12	0	no model provided
- P.72/2009 Amd 4	6	37	0	12	no model provided
P.75/2007	6	36	12	0	no model provided
- P.75/2007 Amd 1	12	36	12	0	no model provided
- P.75/2007 Amd 3	6	48	0	0	no model provided
P.64/2007	12	0	12	35	n/a	-78% — 311%	-78% — 311%	-78% — 311%
P.145/2006 Amd 1	12	37	0	12	-31% — 19%	-31% — 19%	-31% — 19%	-31% — 19%
P.151/2004	6	47	0	0	-7% — 4%	-7% — 4%	-7% — 4%	-89% — 0%
P.115/2004	12	42	0	0	-61% — 20%	-61% — 20%	-61% — 20%	-61% — 20%
P.179/2001	17	53	0	0	no model provided
Clothier 42	12	42	0	0	-22% — 35%	-22% — 35%	-22% — 35%	-22% — 35%
Clothier 44	12	44	0	0	-35% — 20%	-35% — 20%	-35% — 20%	-35% — 20%

*^# = Duplicate electoral models

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