This study investigates phonological characteristics of Korean monolingual children with phonological disorders (PD), using data from 13 children aged 3.6 to 5.9, and compares the analyses of single-word productions (SW) to those of conversational speech (CS). Phonological analyses include overall percentage of consonants correct (PCC), individual phoneme accuracy, and phonological error patterns. Results indicate that children with PD have persistent difficulty with affricates, fricatives, and the liquid /l/. Overall consonant accuracy tends to be greater in CS than SW. Phonological errors that may be explained by language-specific phonological and phonetic properties of Korean are noted.