We provide the ESACIB (?EScarabajos ACu?ticos IB?ricos?) database including all available distributional data of Iberian and Balearic water beetles from the literature up to 2013, as well as from museum and private collections, PhD theses, and other unpublished sources. The database contains 62,015 records with associated geographic data (10?10 Km UTM squares) for 488 species and subspecies of water beetles, 120 of them endemic to the Iberian Peninsula and 8 to the Balearic Islands. The included version of this database was used for the "Atlas de los Cole?pteros Acu?ticos de Espa?a Peninsular". In this dataset we added data of 15 additional species: 11 that occur in the Balearic Islands or mainland Portugal but not in peninsular Spain and other 4 with mainly terrestrial habits within the genus Helophorus (for taxonomic coherence). The complete dataset is provided in Darwin Core Archive format.