The majority of Pangandaran Regency’s population consists of Sundanese ethnic groups. However, transmigration and the development of railway access to Pangandaran. Such migration has inevitably influenced the sociocultural and linguistic dynamics of the area. This study aims to trace the migration of the Javanese ethnic group through the mapping of linguistic distribution and variation in Pangandaran Regency. A mixed-methods approach was employed, combining quantitative and qualitative methods. The quantitative method was used to analyze relationships between linguistic variables through dialectometric calculations, while the qualitative method provided insights into the sociolinguistic landscape of the region based on those calculations. The study integrates dialectological and sociolinguistic perspectives. Field findings indicate that the most prominent linguistic mapping falls within the two-etymon category, suggesting the presence of two distinct languages in Pangandaran: Sundanese and Javanese. Furthermore, isogloss bundles and spider-web maps highlight clusters of lexical variation predominantly located in the eastern, southern, and southwestern parts of the regency. These dialectometric-based variations clearly delineate the linguistic boundary between Sundanese and Javanese. Sundanese is spoken across nearly all areas, appearing in 20 observation points, while Javanese is present in only 5 points. Interviews reveal that the Javanese language was introduced by migrant communities who settled in the highland regions and along the railway corridor.
Wahyuni et al. (Sun,) studied this question.