Coomloughra is the name of a valley in County Kerry Ireland. It is home to the Sayre family until Gormlaith Gaunt’s attack on their home. Nature is close at hand in Coomloughra valley and the Muggle inhabitants raise livestock. The Sayres’ cottage is named Ilvermorny (Pm).
The neighboring valley is Coomcallee, also known as Hag's Glen (Pm).
Coomloughra valley is, indeed, a real place in County Kerry's Macgillycuddy's Reeks (a mountain range in southwest Ireland). And it really is near the valley of Coomcallee, or Hag's Glen. It is a popular area for hikers and climbers (source: Kerry Mountain Rescue Team website). -BB