The custom Google maps for Devon are organised as follows (with links to the individual constituency pages where they are shown more fully):
Links to the constituency pages here and note of the 48% Facebook Groups in Devon (numbers as at April 2019)
Central Devon The 48% - https://www.facebook.com/groups/1775254559430367/ (6)
East Devon The 48% - https://www.facebook.com/groups/1912789148948768/ (9)
Exeter The 48% - https://www.facebook.com/groups/615937885251370/ (38)
Newton Abbot The 48% - https://www.facebook.com/groups/639444006230852/ (6)
North Devon The 48% - https://www.facebook.com/groups/252751361790076/ (20)
South West Devon The 48% - https://www.facebook.com/groups/543738652483263/ (6)
Tiverton and Honiton The 48% - https://www.facebook.com/groups/563004617232166/ (12)
Torbay The 48% - https://www.facebook.com/groups/138558483252557/ (9)
Torridge and West Devon The 48% - https://www.facebook.com/groups/1373078469384139/ (10)
Totnes The 48% - https://www.facebook.com/groups/1095135213867573/ (17)