봉림은 뒷산에 수풀이 우거져 봉황이 깃들인다고 하여, 오산은 오동나무가 많아서 붙여진 이름이다.
Bongrim was named so since it is said that a phoenix dwells in the mountain behind the village because it has a thick forest, and Osan was named so since there are a lot of Paulownia coreanas.