A pink-pigmented bacterium, designated $SW08-7^T$ was isolated from the drinking water of a water purifier. Cells were Gram-negative, rod-shaped, strictly aerobic, and non-spore-forming. It grew optimally at $25^{circ}C$, pH 6~7. Phylogenetic analysis based on 16S rRNA gene sequence showed that strain $SW08-7^T$ belongs to the genus Methylobacterium. The highest 16S rRNA gene sequence similarities were found to Methylobacterium mesophilicum JCM $2829^T$ (96.9%), Methylobacterium brachiatum $B0021^T$ (96.9%), Methylobacterium phyllosphaerae $CBMB27^T$ (96.6%), Methylobacterium radiotolerans JCM $2831^T$ (96.6%), and Methylobacterium hispanicum $GP34^T$ (96.5%). DNA-DNA hybridization experiment revealed low-level (28.5%) of DNA-DNA relatedness between strain $SW08-7^T$ and Methylobacterium hispanicum. The genomic DNA G+C content was 68.9 mol% and the major isoprenoid quinone was Q-10. The major cellular fatty acid of strain $SW08-7^T$ was $C_{18:1};{omega}7c$ (79.8${pm}$2.1%). Results of phylogenetic, phenotypic, and biochemical analyses revealed that strain $SW08-7^T$ could be classified as representing a novel species of genus Methylobacterium, for which the name Methylobacterium dankookense sp. nov. is proposed. The type strain is $SW08-7^T$ (=KCTC $22512^T$ =DSM $22415^T$).