Castle Douglas
Castle Douglas is covered by postcode districts DG5 and DG7. It is in the Dumfries and Galloway council area, Scotland.
Every postcode in Castle Douglas, and which are new since 2020
- New since 2020: 3
- In use before 2020: 138
Of the 141 postcodes in Castle Douglas that ONS places, 3 are new since 2020 and 138 were in use before 2020.
Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. New since 2020 means it came into use in January 2020 or later. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.
The middle of its postcodes: latitude 54.9418, longitude -3.9290. Open this area on OpenStreetMap
Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; roads, rivers and built-up areas: Ordnance Survey open maps. Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre.
The 3 newest postcodes
What is it like to live in Castle Douglas?
At 85 of the 136 postcodes Ofcom reports on, every home and business can get gigabit broadband. It has 1 primary school and 1 secondary school at its postcodes.
We don't rate places; here are the figures so you can judge.
Sources: Ofcom Connected Nations; Scottish Government school list. Copyright Scottish Government, contains Ordnance Survey data © Crown copyright and database right 2026. Each figure is from a section of this page, which gives its date.
Are new homes being built in Castle Douglas?
3 of the 141 postcodes now in use in Castle Douglas came into use in January 2020 or later, ONS says.
The newest postcodes
A new postcode is often a new street or estate, but Royal Mail also makes new postcodes when it reorganises old ones, so not every one means new homes. Only postcodes still in use are counted.
Source: ONS Postcode Directory, August 2026, loaded 20 October 2026.
What broadband can you get in Castle Douglas?
Ofcom reports on 136 of the 141 postcodes in Castle Douglas. At 85 of them every home and business can get gigabit broadband.
Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.
Check one address on Ofcom's checkerSource: Ofcom Connected Nations, Connected Nations, Spring 2026, data for January 2026.
Which schools are in Castle Douglas?
The open schools at the postcodes in Castle Douglas. A school for ages 4 to 18 is listed under both. Distances are straight lines from the middle of its postcodes. Distance is not a catchment: each council sets its own admission rules.
Source: Scottish Government school list, read 27 October 2026. Copyright Scottish Government, contains Ordnance Survey data © Crown copyright and database right 2026. Each school opens its website, where the council lists one.
Who runs Castle Douglas?
- Council
- Dumfries and Galloway
- Parliamentary constituency
- Dumfries and Galloway
- Police force area
- Scotland
- Country
- Scotland
- MP
- John Cooper (Conservative)
All 141 postcodes here share these. Wards differ: check a postcode for yours. What council am I in?
Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; National Records of Scotland localities; UK Parliament, read 14 October 2026.
Moving to Castle Douglas
Who to tell and what to sort out in your first week.
- Tell Dumfries and Galloway about council tax Council tax, on dumfriesandgalloway.gov.uk
- Register to vote at the new address Register to vote on GOV.UK
- Register with a GP practice
- Take meter readings on the day you move in
- Power cut? Call 105. It is free. About 105, the power cut number
Castle Douglas postcodes
141 postcodes in use in Castle Douglas, by district:
Those districts are all in the DG postcode area.
Check a Castle Douglas postcode
Enter a full postcode to see its ward, its flood risk, house prices in its sector and its nearest schools.
Do not know the postcode? What is my postcode?
Places near Castle Douglas
Distances are straight lines between the middles of each place's postcodes.
Quick answers about Castle Douglas
- What is the postcode for Castle Douglas?
- Postcode districts DG5 and DG7, with 141 postcodes in use. Source: ONS.
- Which council is Castle Douglas in?
- Dumfries and Galloway. Source: ONS.
- Who is the MP for Castle Douglas?
- John Cooper (Conservative), for Dumfries and Galloway. Source: UK Parliament and ONS.
- What schools are in Castle Douglas?
- Primary schools at its postcodes include Castle Douglas Primary School; secondary schools at its postcodes include Castle Douglas High School. Source: Scottish Government.
- What broadband can you get in Castle Douglas?
- Ofcom reports on 136 of the 141 postcodes in Castle Douglas. At 85 of them every home and business can get gigabit broadband. Source: Ofcom.
- Are new homes being built in Castle Douglas?
- 3 of the 141 postcodes now in use in Castle Douglas came into use in January 2020 or later, ONS says. Source: ONS.
Where the facts on this page come from
- Office for National Statistics: ONS Postcode Directory
- National Records of Scotland localities
- Ofcom Connected Nations
- Scottish Government school list
- UK Parliament
Contains National Records of Scotland data © Crown copyright and database right 2026, Open Government Licence v3.0. Contains public sector information licensed under the Open Government Licence v3.0. Contains Parliamentary information licensed under the Open Parliament Licence v3.0.
Licences: Open Government Licence v3.0; Open Parliament Licence v3.0.
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