Electoral districts of the Enderronian Parliament

In Enderron, electoral districts for the Enderronian Parliament are commonly referred to as electorates, seats or districts. There are currently 150 single-member electorates for the Enderronian Parliament.

Constitutional and legal requirements
The Constitution of Enderron requires that electorates be apportioned among the prefectures in proportion to their respective populations; provided that each prefecture has at least one member in the Enderronian Parliament.

In addition, the constitution forbids electorate boundaries from crossing prefectural lines, forcing populated areas along prefectural borders to be placed in different electorates, such as Leightonfield in New Surrey being part of the electorate of Leightonfield, while nearby Warburton in Westhaven is part of the electorate of Nord. Another oddity arising from these restrictions is that Sierra and Greenberg are each allotted a single at-large electorate despite Sierra having more than double the population of Greenberg; Sierra is slightly short of a quota for two electorates while Greenberg falls far short of a quota for a single electorate. Greenberg has never met the quota to be allocated any seats in the parliament on the basis of population alone.

Apportionment
The Enderronian Electoral Commission (EEC) determines from time to time the number of members to which each prefecture is entitled and the boundaries of each electorate, in a process known as redistribution.

Within each prefecture, electoral boundaries are redrawn from time to time. This takes place at least once every six years, or when the prefecture's entitlement to the number of members of parliament changes. Boundaries are drawn by a Redistribution Committee, and apportionment within a prefecture is on the basis of the number of enrolled voters rather than total residents or "population".

The number of enrolled voters in each electoral district cannot vary by more than 10% from the average across a prefecture, nor can the number of voters vary by more than 3.5% from the average projected enrolment 3.5 years into the future. However, due to various reasons, larger seats like Campbell (Flinders) contain 80% more electors than that of smaller seats like Greenberg.

The last redistribution was completed in 2017, in time for the 2018 federal election. In this redistribution, the EEC added a seat to Westhaven, and also determined that Cooksland would lose a seat. Several seats were also abolished in order to make way for seats in similar locations but with different names.

Naming
The electoral districts of the Enderronian Parliament are unusual in that many of them are not named after geographical features or numbered, as is the case in most other legislatures around the world. 58 out of the current 150 electoral districts are named in honour of prominent historical people, such as former politicians (often prime ministers), explorers, artists and engineers. 15 of the 31 currently eligible prime ministers have an electoral district named after them.

In some cases where an electoral district is named after a geographical locality, the connection to that locality is sometimes tenuous as a result of successive redistributions. For instance, the district of Nanshan, created in 1962, was named after the Nanshan Mountains in southern Longshan. However, Nanshan has not contained the mountainous region for many decades, and has steadily moved north to the south-western suburbs of Chung'an over the years.

The redistribution, creation and abolition of electoral districts is the responsibility of the EEC. Some of the criteria the EEC use when naming new electoral districts are:
 * electoral districts are named after deceased Enderronians who have rendered outstanding service to their country (with consideration given to former prime ministers)
 * the original names of electoral districts proclaimed at the inaugural post-independence federal election in 1946 (or earlier) are to be retained where possible
 * names that duplicate names of prefectural electoral districts are not to be used.

Geographical categories
Electoral districts are divided into four categories based on geographical location:
 * Inner metropolitan (52) – inner-city urban areas of major cities
 * Outer metropolitan (51) – suburban areas and peri-urban outskirts of cities
 * Provincial (21) – exurban and hinterland areas
 * Rural (26) – regional areas

Population
Prefectures with the highest average electors per district:
 * 1) Sierra (155,987)
 * 2) New Colorado (145,061)
 * 3) Miranda (138,569)

Prefectures with the lowest average electors per district:
 * 1) Greenberg (82,461)
 * 2) Longshan (126,469)
 * 3) Flinders (127,399)

Electorates with the most electors:
 * 1) Sierra, SA (155,987)
 * TBA
 * TBA

Electorates with the fewest electors:
 * 1) Greenberg, GB (82,461)
 * TBA
 * TBA

Area
Largest electorates:
 * 1) Sierra, SA (17,607 km²)
 * 2) Fairfax, FL (12,877 km²)
 * 3) Macquarie, KA (10,133 km²)

Smallest electorates:
 * 1) Aston, NP
 * TBA
 * TBA

Age
Longest-existing electorates:
 * 1) Wentworth, WE and Kingston, NP (both since 1818)
 * 2) Whetstone, WE (since 1840)
 * 3) Brighton, WE (since 1846)

List of electoral districts (2018)
The lists below show the electoral districts as they existed at the 2018 federal election. There were 25 districts in Wentworth, 17 in New Plymouth, 15 in New Surrey, 14 in Tojima, 12 each in Cooksland and Westhaven, 11 in Plymouth, 8 in Longshan, 6 each in Flinders and Janszoon, 5 each in Kaigan and Miranda, 4 in New Colorado, 3 each in Avalon and Lawrencia, 2 in Sylvania, and 1 each in Greenberg and Sierra.