I don't know where I am.
TROH-voh — 'tr' cluster is common in Italian; roll the 'r' lightly.
Use when you are lost or disoriented during an emergency. Modern emergency operators can attempt to locate you via cell tower triangulation, but giving visual landmarks helps enormously.
'Trovarsi' is the reflexive form used to mean 'to be located'. The construction 'mi trovo' (literally 'I find myself') is the standard way to say where you are in Italian.
Sono perso/a.
I am lost.
Simple and universally understood — good for A1 learners.
Non conosco questa zona.
I don't know this area.
Implies unfamiliarity with the neighbourhood.
Vedo un cartello con scritto Via Nazionale.
I can see a sign that says Via Nazionale.
Helps police pinpoint your location from visual clues.
Italy's emergency services can request GPS location from smartphones with caller's consent. On iOS and Android, the feature is activated through the emergency SOS call in many regions.