Castelcucco borders the following municipalities: Asolo, Cavaso del Tomba, Monfumo, Paderno del Grappa, Possagno.
From 2003 to 2008, DNA analysis showed that the Gattera and Borgogna grapes from the commune of Castelcucco in the province of Treviso and the Refosco di Guarnieri grape from the Friuli-Venezia Giulia wine region were identical to Trevisana nera.