Assergi is a frazione of the comune of L'Aquila, located about 11 km (6.8 mi) from the capital. With a population of just over 500, it is situated at an altitude of approximately 1,000 meters, below the western slope of the Gran Sasso in a small plain called the Piana di Assergi (Plain of Assergi). Assergi was formerly included in the comune of Camarda, which is directly to its south.

The Autostrada A24, or Autostrada dei Parchi, is a motorway connecting Rome to Teramo. Starting at the Grande Raccordo Anulare, the A24 runs broadly north-east past L'Aquila and through a 10 km tunnel under the Gran Sasso before reaching Teramo. Strada dei Parchi S.p.A. currently manages the route.