An electoral district, also known as an election district, legislative district, voting district, constituency, riding, ward, division, (election) precinct, electoral area, circumscription, or electorate, is an administrative subdivision of a larger state (a country, administrative region, or other polity) created to provide its population with representation in the larger state's legislative body. That body, in turn, determines each districts' boundaries and whether each will be represented by a single member or multiple members. Generally, only voters (constituents) who reside within the district are permitted to vote in an election held there. District representatives may be elected via a first-past-the-post system, a proportional representative system, or another voting method. They may be selected via a direct election under universal suffrage, an indirect election, or another form of suffrage.
Terminology
The names for electoral districts vary across countries and, occasionally, for the office being elected. The term constituency
is commonly used to refer to an electoral district, especially in
British English, but it can also refer to the body of eligible voters or
all the residents of the represented area or only those who voted for a
certain candidate. The terms (election) precinct and election district are more common in American English. In Australia and New Zealand, electoral districts are called electorates, however elsewhere the term electorate generally refers specifically to the body of voters.
In India electoral districts are referred to as "Nirvācan Kṣetra" (Hindi: निर्वाचन क्षेत्र) in Hindi,
which can be literally translated to English as "electoral area" though
the official English translation for the term is "constituency". The
term "Nirvācan Kṣetra" is used while referring to an electoral district
in general irrespective of the legislature. When referring to a
particular legislative constituency, it is simply referred to as
"Kṣetra" along with the name of the legislature, in Hindi (e.g.-'Lok
Sabha Kshatriya' for a Lok Sabha Constituency). Electoral districts for municipal or other local bodies are called "wards".
In Canada, districts are colloquially called riding (stemming from an earlier British geographical subdivision); in French, circumscription or (colloquially) Comte, "county." Local electoral districts are sometimes called wards, a term which also designates administrative subdivisions of a municipality. In local government in the Republic of Ireland voting districts are called "electoral areas".
District magnitude
District magnitude is the number of representatives elected from a given district to the same legislative body. A single-member district has one representative, while a multi-member district has more than one. Voting systems that seek proportional representation (such as the single transferable vote) inherently require either multi-member districts or leveling seats,
and the larger the district magnitude the more proportional a system
will tend to be (and the greater the number of distinct parties or
choices that can be represented.) Non-proportional systems may use
multi-member districts, as in the House of Commons until 1950, Singapore's Group Representation Constituency, or the New Hampshire House of Representatives.
Under proportional representation systems, district magnitude is an
important determinant of the makeup of the elected body. With a larger
number of winners, candidates are able to represent proportionately
smaller minorities;
a 10% minority in a given district may secure no seats in a 5-member
election but would be guaranteed a seat in a 9-member one because they
fulfill a Droop quota.
The geographic distribution of minorities also affects their
representation – an unpopular nationwide minority can still secure a
seat if they are concentrated in a particular district. Likewise a small
party with very diffuse support is more likely to win more seats with
larger multi-member districts rather than smaller single-member
districts where they may not have enough support in any particular seat.
District magnitude can sometimes vary within the same system during an
election. In the Republic of Ireland, for instance, national elections to Dáil Éireann are held using a combination of 3, 4, and 5 member districts. In Hong Kong, the magnitude ranges from 5 to 9, respective to the geographic constituencies' populations.
The only democracies with one single nationwide electoral
district and no other territorial correctors are Fiji, Israel, The
Netherlands, Moldova, Mozambique, Slovakia, South Africa and Serbia.
Apportionment and redistricting
Apportionment is the process of allocating a number of
representatives to different regions, such as states or provinces.
Apportionment changes are often accompanied by redistricting, the
redrawing of electoral district boundaries to accommodate the new
number of representatives. This redrawing is necessary under
single-member district systems, as each new representative requires
their own district. Multi-member systems, however, vary depending on
other rules. Ireland, for example, redraws its electoral districts after
every census while Belgium
uses its existing administrative boundaries for electoral districts and
instead modifies the number of representatives allotted to each. Israel and the Netherlands are among the few counties that avoid the need for apportionment entirely by electing legislators at-large.
Apportionment is generally done on the basis of population. Seats in the United States House of Representatives, for instance, are reapportioned to individual states every 10 years following a census, with some states that have grown in population gaining seats. By contrast, seats in the Cantonal Council of Zürich are reapportioned in every election based on the number of votes cast in each district, which is only made possible by use of multi-member districts, and the House of Peoples of Bosnia and Herzegovina, by contrast, is apportioned without regard to population; the three major ethnic groups - Bosniaks, Serbs, and Croats - each get exactly five members. Malapportionment occurs when voters are under- or over-represented due to variation in district population.
Given the complexity of this process, software is increasingly
used to simplify the task, while better supporting reproducible and more
justifiable results.
Gerrymandering
Gerrymandering is the manipulation of electoral district
boundaries for political gain. By creating a few "forfeit" districts
where opposing candidates win overwhelmingly, gerrymandering politicians
can manufacture more, but narrower, wins for themselves and their
party. Gerrymandering relies on the wasted-vote effect,
effectively concentrating wasted votes among opponents while minimizing
wasted votes among supporters. Consequently, gerrymandering is
typically done under voting systems using single-member districts, which
have more wasted votes.
While much more difficult, gerrymandering can also be done under
proportional-voting systems when districts elect very few seats. By
making three-member districts in regions where a particular group has a
slight majority, for instance, gerrymandering politicians can obtain 2/3
of that district's seats. Similarly, by making four-member districts in
regions where the same group has slightly less than a majority,
gerrymandering politicians can still secure exactly half of the seats.
However, any possible gerrymandering that theoretically could
occur would be much less effective because minority groups can still
elect at least one representative if they make up a significant
percentage of the population (e.g. 20-25%), compared to single-member
districts where 40-49% of the voters can be essentially shut out from
any representation
Swing seats and safe seats
Sometimes, particularly under non-proportional winner-take-all voting systems, electoral districts can be prone to landslide victories. A safe seat is one that is very unlikely to be won by a rival politician due to the makeup of its constituency. Conversely, a swing seat is one that could easily swing either way. In United Kingdom general elections and United States
presidential and congressional elections, the voting in a relatively
small number of swing seats usually determines the outcome of the entire
election. Many politicians aspire to have safe seats.
In large multi-party systems like India, swing seats can lead to a hung assembly
like situation if a significant number of seats go for regional parties
instead of the larger national parties who are the main competitors at
the national or state level, as was the situation in the Lok Sabha (Lower house of the Parliament of India) during the 1990s.
Constituency work
Elected representatives may spend much of the time serving the needs or demands of individual constituents,
meaning either voters or residents of their district. This is more
common in assemblies with many single-member or small districts than
those with fewer, larger districts. In a looser sense, corporations and
other such organizations can be referred to as constituents, if they
have a significant presence in an area.
Many assemblies allow free postage (through franking privilege or prepaid envelopes) from a representative to a constituent, and often free telecommunications. Caseworkers may be employed by representatives to assist constituents with problems. Members of the U.S. Congress
(both Representatives and Senators) working in Washington, D.C. have a
governmentally staffed district office to aid in constituent services.
Many state legislatures have followed suit. Likewise, British MPs use their Parliamentary staffing allowance to appoint staff for constituency casework. Client politics and pork barrel politics are associated with constituency work.
Special constituencies with additional membership requirements
In
some elected assemblies, some or all constituencies may group voters
based on some criterion other than, or in addition to, the location they
live. Examples include:
- By ethnic groups: Communal constituencies in Fiji; reserved seats in India for Anglo-Indians and scheduled castes and scheduled tribes; Māori electorates in New Zealand.
- By qualification: University constituency in Ireland and formerly the United Kingdom, functional constituency in Hong Kong
- By residence outside the country: Overseas constituencies in France and Italy
Voting without constituencies
Not all democratic political systems use separate districts or other electoral subdivisions to conduct elections. Israel, for instance, conducts parliamentary elections as a single district. While the 26 electoral districts in Italy and the 20 in the Netherlands have a role in the actual election, but no role whatsoever in the division of the seats. Ukraine elected half of the Verkhovna Rada (the Ukrainian Parliament) in this way in the elections in October 2012.