At the present, San Juan is politically subdivided into 19 barangays, namely:

Abualan, Badas, Baug, Cabcaburao, Colabaoan, Culliong, Daoidao, Guimba, Lam-ag, Lumubang, Nangobongan, North Poblacion, Pattaoig, Quidaoen, Sabangan, Silet, South Poblacion, Supiil and Tagaytay.