What differentiates South Tyrolean German from other Bavarian varieties is primarily the influence of Italian and Ladin on its lexicon.
69.15% of the inhabitants of South Tyrol speak German as their mother tongue.
[3] South Tyrolean tends to be used at home or in informal situations, while standard German in its Austrian variant prevails at school, work and for official purposes.
It preserves its specific traits and is basically homogeneous with Northern Tyrolean variants.
However it has absorbed some Italian or Italian-based terms, especially for administrative purposes (for example "driving license", "General Practitioner", etc.)