This investigation was focused on Austronesian languages, e.g. Sundanese and Javanese. As its aim was to determine language border in Majalengka, the scope was into lexical comparison of Standard Sundanese and Standard Javanese in order to map it out into a language map. The result of this analysis was presented as a language map which explained clearly that there were two urban villages, where people tended to use both Sundanese and Javanese although they lived geographically in a Sundanese-speaking region. Moreover, there was a rural village that was apparently an enclave of Javanese surrounded by villages as home of Sundanese native speakers.