Mögglingen is positioned at between 398 and 475 meters above sea level, along the upper Rems valley in the north-eastern foothills of the "Swabian Jura" between Schwäbisch Gmünd (13 km / 8 miles) and administrative centre of the Ostalbkreis, Aalen (11 km / 7 miles).

The municipality is bordering to the north to Heuchlingen, to the east to Essingen, in the south to the town Heubach and to the west to Böbingen an der Rems.

The place belonged for a long time to the land territory of the Reichstadt Schwäbisch Gmünd.

When this was dissolved by the district reform Baden-Württemberg 1973, Mögglingen became part of the newly formed Ostalbkreis.

The curving and relatively narrow high street has been part of a long distance route for many years, but the number of heavy trucks passing through small towns like Mögglingen rose substantially after 2005 which was the year in which Germany introduced Autobahn tolls for trucks above twelve tonnes gross weight.