States of Jersey Electoral Reform Models

Current Model

Constitution:

Senators: 8
Constables: 12
Deputies: 29
Total: 49

Representation Data:

Deputies Per District

Constituency	Population	Deputies	Average Representation	Difference from Average	Weighting to Average
Grouville	5320	1	5320	44.45%	0.69
St Brelade #1	3690	1	3690	0.19%	1.00
St Brelade #2	7850	2	3925	6.57%	0.94
St Clement	10060	2	5030	36.57%	0.73
St Helier #1	10920	3	3640	-1.17%	1.01
St Helier #2	9570	3	3190	-13.39%	1.15
St Helier #3/4	16050	4	4013	8.96%	0.92
St John	3180	1	3180	-13.66%	1.16
St Lawrence	5850	2	2925	-20.58%	1.26
St Martin	4170	1	4170	13.22%	0.88
St Mary	1990	1	1990	-45.97%	1.85
St Ouen	4450	1	4450	20.83%	0.83
St Peter	5450	1	5450	47.98%	0.68
St Saviour #1	5560	2	2780	-24.52%	1.32
St Saviour #2	5300	2	2650	-28.05%	1.39
St Saviour #3	3960	1	3960	7.52%	0.93
Trinity	3430	1	3430	-6.87%	1.07
	106800	29	3683

Range:

Most over-represented: St Mary, -45.97%
Most under-represented: St Peter, 47.98%
Number of representatives per citizen: 1 — 4

District Representatives Proportionally

Constituency	Population	Ds & Cs	Average Representation	Difference from Average	Weighting to Average
Grouville	5320	2	2660	2.11%	0.98
St Brelade #1	3690	1.5	2460	-5.57%	1.06
St Brelade #2	7850	2.5	3140	20.54%	0.83
St Clement	10060	3	3354	28.75%	0.78
St Helier #1	10920	3.33	3280	25.91%	0.79
St Helier #2	9570	3.33	2874	10.33%	0.91
St Helier #3/4	16050	4.33	3707	42.30%	0.70
St John	3180	2	1590	-38.96%	1.64
St Lawrence	5850	3	1950	-25.14%	1.34
St Martin	4170	2	2085	-19.96%	1.25
St Mary	1990	2	995	-61.80%	2.62
St Ouen	4450	2	2225	-14.59%	1.17
St Peter	5450	2	2725	4.61%	0.96
St Saviour #1	5560	2.33	2387	-8.37%	1.09
St Saviour #2	5300	2.33	2275	-12.67%	1.15
St Saviour #3	3960	1.33	2978	14.32%	0.87
Trinity	3430	2	1715	-34.17%	1.52
	106800	41	2605

Range:

Most over-represented: St Mary, -61.80%
Most under-represented: St Helier #3/4, 42.30%
Number of representatives per citizen: 1.33 — 4.33

District Representation

Constituency	Population	Ds & Cs	Average Representation	Difference from Average	Weighting to Average
Grouville	5320	2	2660	2.11%	0.98
St Brelade #1	3690	2	1845	-29.17%	1.41
St Brelade #2	7850	3	2617	0.46%	1.00
St Clement	10060	3	3354	28.75%	0.78
St Helier #1	10920	4	2730	4.80%	0.95
St Helier #2	9570	4	2393	-8.14%	1.09
St Helier #3/4	16050	5	3210	23.22%	0.81
St John	3180	2	1590	-38.96%	1.64
St Lawrence	5850	3	1950	-25.14%	1.34
St Martin	4170	2	2085	-19.96%	1.25
St Mary	1990	2	995	-61.80%	2.62
St Ouen	4450	2	2225	-14.59%	1.17
St Peter	5450	2	2725	4.61%	0.96
St Saviour #1	5560	3	1854	-28.83%	1.41
St Saviour #2	5300	3	1767	-32.17%	1.47
St Saviour #3	3960	2	1980	-23.99%	1.32
Trinity	3430	2	1715	-34.17%	1.52
	106800	41	2605

Range:

Most over-represented: St Mary, -61.80%
Most under-represented: St Clement, 28.75%
Number of representatives per citizen: 2 — 5

Parish Representatives

Constituency	Population	Ds & Cs	Average Representation	Difference from Average	Weighting to Average
Grouville	5320	2	2660	2.11%	0.98
St Brelade	11540	4	2885	10.75%	0.90
St Clement	10060	3	3354	28.75%	0.78
St Helier	36540	11	3322	27.52%	0.78
St John	3180	2	1590	-38.96%	1.64
St Lawrence	5850	3	1950	-25.14%	1.34
St Martin	4170	2	2085	-19.96%	1.25
St Mary	1990	2	995	-61.80%	2.62
St Ouen	4450	2	2225	-14.59%	1.17
St Peter	5450	2	2725	4.61%	0.96
St Saviour	14820	6	2470	-5.18%	1.05
Trinity	3430	2	1715	-34.17%	1.52
	106800	41	2605

Range:

Most over-represented: St Mary, -61.80%
Most under-represented: St Clement, 28.75%
Number of representatives per citizen: 2 — 11

Electoral Models:

	Districts	Members			Range of Difference from Average
Model		D	C	S	Deputies Only	District Proportionally	District Representation	Parish Representatives
Current Model	17	29	12	8	-46% — 48%	-62% — 42%	-62% — 29%	-62% — 29%
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	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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