Introduction: Anxiety disorders encompass a range of anxiety-phobic conditions and disorders involving maladaptive responses to stressors. The objective is to describe patients with these disorders who are treated at a healthcare facility licensed to provide psychiatric care in metropolitan France.Methods: The analysis included all individuals—whether hospitalized or treated on an outpatient basis at facilities licensed to provide psychiatric care—for whom at least one anxiety disorder (ICD-10 codes F40 through F48) was recorded as a primary or secondary diagnosis. Data from 2010 to 2014 were extracted from the national database for the collection of medical information in psychiatry (RIM-P).Results: Between 2010 and 2014, 1,351,649 patients were treated for anxiety disorders. In approximately 9 out of 10 cases, the diagnosis of anxiety disorder was listed as the primary diagnosis. Over these five years, an annual increase of 3.6% in the treatment rate for anxiety disorders was observed among women (p<0.001) and of 3.7% among men (p<0.001). The increases in these rates were observed for reactions to a major stressor and adjustment disorders (F43) as well as anxiety disorders other than phobias (F41), while phobic disorders (F40), obsessive-compulsive disorders (OCD, F42), and somatoform disorders (F45) remained stable over time. In 2014, the treatment rate was 670.3 per 100,000 people (780.0 among women and 553.5 among men). More than half of the patients treated for anxiety disorders presented with reactions to a major stressor and adjustment disorders (F43). Regardless of the anxiety disorder studied—with the exception of OCD, which affected both sexes equally—women were treated more often than men, with a peak among girls aged 15–19. Among both men and women, rates of treatment for anxiety disorders 20% higher than the national average were observed in the northern regions of France (Brittany, Normandy, Hauts-de-France, and Grand Est).Conclusion: Given the increase in healthcare utilization for certain anxiety disorders in recent years, epidemiological surveillance should be implemented through surveys and analyses of healthcare utilization databases. Early identification during childhood or adolescence would be necessary to initiate early treatment and prevent the disorders from becoming chronic, the development of comorbidities, and suicidal behavior.