Giarre is bounded by the municipalities of Acireale, Mascali, Milo, Riposto, Sant'Alfio, Santa Venerina and Zafferana Etnea.
Its frazioni are Altarello, Carruba, Macchia, Miscarello, San Giovanni Montebello, San Leonardello, Santa Maria la Strada, Sciara and Trepunti.