ChautauquaThrills.com . . . Chautauqua County, NY was formed from Genesee in 1808...Population as of 2000: 4,666. The name comes from the Indian word Ots-ha-ta-ka, which means a foggy place, and was applied to the country around the head of the Chatauque lake, even now famous for its fogs...Chautauqua County is known throughout the world because of its Chautauqua Institution...Thousands gather yearly at this assembly and spread a knowledge of this part of New York.