Chulpo is important in "A Single Shard" because it is where Tree-ear lives and grows up. The village represents tradition, community, and the values of hard work and perseverance that Tree-ear learns from the villagers, especially Min, the master potter. Additionally, the beauty of Chulpo's surroundings and the pottery produced there play a significant role in the story's setting and themes.
Yes there is but it is so small you normally can't find it but most maps say Chulpo not Ch'ulp'o