Scottish Parliament Electoral System and Boundary Reviews
The Scottish Parliament, commonly known as Holyrood, was established under the Scotland Act 1998. Since its first general election in 1999, the parliament has operated under a sophisticated electoral framework designed to balance local representation with overall party proportionality.
The system utilizes a hybrid approach to ensure that the 129 Members of the Scottish Parliament (MSPs) reflect both the specific needs of local communities and the broader political will of the Scottish electorate.
How the Electoral System Works
The parliament is composed of 129 seats, divided into two distinct types of representation:
- Constituency MSPs: There are 73 constituencies. Each elects one MSP using the plurality system, also known as first-past-the-post, where the candidate with the most votes wins.
- Regional MSPs: There are eight electoral regions. Each region elects seven additional MSPs from party lists.
To determine the allocation of these regional seats, the parliament employs the D'Hondt method. This mathematical formula ensures a form of proportional representation, adjusting the final seat count based on the results of the constituency votes to prevent a single party from dominating the parliament without a corresponding share of the popular vote.
Key Facts
- Total Seats: 129 MSPs.
- Constituencies: 73 (First-past-the-post).
- Regions: 8 (Proportional representation via D'Hondt method).
- Governing Law: Established by the Scotland Act 1998.
- Boundary Authority: Reviews are conducted by Boundaries Scotland.
The Evolution of Electoral Boundaries
The geographical boundaries of Holyrood constituencies are periodically reviewed to ensure fair representation. Historically, these boundaries were closely linked to those of the UK House of Commons (Westminster).
The 1999–2011 Period
From the inception of the parliament until 2005, Holyrood constituencies were identical to Westminster constituencies, with the exception of Orkney and Shetland, which remained separate at the Scottish level. The Scottish Parliament (Constituencies) Act 2004 decoupled these systems, allowing Westminster to reduce its number of Scottish MPs to 59 in 2005 without affecting the number of MSPs.
The 2011–2026 Period
The first formal periodical review of boundaries was announced in July 2007 and implemented for the 2011 election. During this phase, the total number of constituencies (73), regions (8), and MSPs (129) remained constant.
Changes from 2026 Onward
A second periodic review has led to the creation of new constituencies and regions, updating the electoral map to reflect demographic shifts and administrative changes.
Notably, the Arbuthnott Commission recommended in 2006 that council area boundaries, Holyrood boundaries, and Westminster boundaries be reviewed together for better alignment; however, this recommendation was not implemented.
Summary of Parliamentary Structure
| Component | Quantity | Election Method | Representation Type |
|---|---|---|---|
| Constituencies | 73 | Plurality (First-past-the-post) | Local/Constituency |
| Electoral Regions | 8 | D'Hondt Method (Party List) | Regional/Proportional |
| Total MSPs | 129 | Hybrid | National |
Frequently Asked Questions
How many MSPs are there in total?
There are 129 Members of the Scottish Parliament (MSPs) in total.
What is the D'Hondt method?
The D'Hondt method is a mathematical formula used to allocate regional seats from party lists to ensure that the overall composition of the parliament is proportional to the votes cast.
Who is responsible for reviewing the boundaries of Holyrood?
Boundaries Scotland is the body responsible for reviewing the boundaries of the Scottish Parliament constituencies.
Did the 2004 Act change the number of MSPs?
No. The Scottish Parliament (Constituencies) Act 2004 allowed the number of Westminster MPs in Scotland to be reduced to 59, but it did not change the number of constituencies or MSPs in the Scottish Parliament.
How are the 73 constituency MSPs elected?
They are elected using the plurality system, commonly known as first-past-the-post, where the candidate with the most votes in a specific constituency wins the seat.