Cadasari is a village and an administrative district (kecamatan) located in the northeast corner of Pandeglang Regency in Banten Province on Java, Indonesia. It covers an area of 26.20 km<sup>2</sup> and had a population of 31,425 at the 2010 Census and 37,114 at the 2020 Census; the official estimate as at mid 2023 was 38,283. The administrative centre is in Cadasari village.
Cadasari District is sub-divided into eleven rural villages (desa), all sharing the postcode 42251. These are listed below with their areas and their officially-estimated populations as at mid 2022.
Notes: (a) comprising 20,176 males and 18,492 females.