Amsterdam is an unincorporated community in Merced County, California. It is located 6.5 miles north-northeast of Atwater, at an elevation of 220 feet. Amsterdam was settled by Dutch immigrants, and had a station on the Southern Pacific branch line to Oakdale, abandoned in 1942. In 1925, Amsterdam was said to have a population of 32. The community wa…Amsterdam is an unincorporated community in Merced County, California. It is located 6.5 miles north-northeast of Atwater, at an elevation of 220 feet. Amsterdam was settled by Dutch immigrants, and had a station on the Southern Pacific branch line to Oakdale, abandoned in 1942. In 1925, Amsterdam was said to have a population of 32. The community was featured in the 2012 Belgian documentary Amsterdam Stories USA on places in the United States named Amsterdam.