Midlothian

§ This page provides a baseview of UK constituency, bringing together various information and resources to help you better understand the area of Midlothian.

Overview ⁞ Midlothian combines countryside, historic sites, and easy access to Edinburgh. Rosslyn Chapel, made famous by The Da Vinci Code, is a key attraction, alongside Dalkeith Country Park and the Pentland Hills Regional Park. The area’s towns and villages are surrounded by rolling farmland and scenic walking paths.

Constituency Map and Boundary Information

Below is an interactive map showing the boundary of the Midlothian parliamentary constituency. The boundary data is sourced from the Office for National Statistics (ONS), using the latest official geographic definitions.

You can explore official statistics for this area on the ONS Explore Local Statistics page, or view its location on the UK Parliament constituency map.

Map tiles © OpenStreetMap contributors. Boundary data: Contains Ordnance Survey data © Crown copyright and database right 2024; Contains Office for National Statistics data © ONS 2024, licensed under the Open Government Licence v3.0.

Wards in Midlothian

Midlothian is divided into 6 wards, listed below in alphabetical order.

  • Bonnyrigg
  • Dalkeith
  • Midlothian East
  • Midlothian South
  • Midlothian West
  • Penicuik

Midlothian is a constituency that covers these wards in Midlothian.

Wards and constituencies: wards are the smallest electoral areas used to elect local councillors who make decisions about local services, while parliamentary constituencies are much larger areas used to elect one MP to represent them in the House of Commons. In simple terms, wards are for local council elections, and constituencies are for national parliamentary elections.

Population by age group

The most recent data for constituencies in England and Wales comes from mid-year estimates for 2022. This tells us what the population was estimated to be on 30 June 2022.

Population by age group, June 2022
Age Band Constituency (Number) Constituency (%) Scotland (Number) Scotland (%)
0 to 17 20,340 20.96% 1,006,212 18.47%
18 to 24 6,529 6.73% 466,541 8.56%
25 to 34 12,523 12.90% 695,519 12.77%
35 to 49 19,299 19.89% 1,011,614 18.57%
50 to 64 19,898 20.50% 1,170,419 21.48%
65 and over 18,451 19.01% 1,097,395 20.14%

Population by ethnic group

The most recent census asked people about their ethnic group. The census was carried out in March 2021 in England, Wales and Northern Ireland and in March 2022 in Scotland.

Population by ethnic group March 2021
Ethnic Group Constituency (Number) Constituency (%) Scotland (%)
White Scottish 79,572 82.43% 77.70%
Other White British 7,545 7.82% 9.38%
Other White 2,410 2.50% 3.01%
White Polish 1,855 1.92% 1.67%
Mixed or multiple ethnic group 1,027 1.06% 1.12%
White Irish 745 0.77% 1.05%
Pakistani, Pakistani Scottish or Pakistani British 700 0.73% 1.34%
Indian, Indian Scottish or Indian British 523 0.54% 0.97%
Chinese, Chinese Scottish or Chinese British 488 0.51% 0.87%
African: Other African 428 0.44% 0.97%
Other Asian 375 0.39% 0.59%
Other ethnic group 371 0.38% 0.50%
Arab, Arab Scottish or Arab British 188 0.19% 0.41%
Bangladeshi, Bangladeshi Scottish or Bangladeshi British 133 0.14% 0.13%
African: African, African Scottish or African British 49 0.05% 0.11%
Caribbean or Black: Caribbean, Caribbean Scottish or Caribbean British 47 0.05% 0.04%
Caribbean or Black: Other Caribbean or Black 41 0.04% 0.07%
Gypsy/ Traveller 31 0.03% 0.06%
Caribbean or Black: Black, Black Scottish or Black British 10 0.01% 0.01%

Midlothian compared with other constituencies

Midlothian has a population of 97,040 (2024 mid-year estimate by ONS). The population of the UK is 69,281,400 as of mid-2024. There are 650 constituencies, so the average population per constituency is around 106,600.

Population of 650 Constituencies
Population of 650 Constituencies (2024 mid-year estimate) sorted ascending

Compared with the other 649 constituencies, Midlothian has a population higher than 64, lower than 442, and similar to 144 constituencies (±2,500, including itself).

This Constituency Baseview is automatically generated using data from multiple official sources and stored in our database. The underlying programme was last updated on 4 December 2025. We continue to enhance these pages and add new insights, so feel free to check back for updates.