A combined 4,000 acres were listed for sale in New York's Oneida County recently; the overall value of all Oneida County farmsand rural real estate for sale was around $109 million. Oneida County ranks 11th out of 62 counties in New York for the total acreage of land currently advertised for sale. Rome featured the most land for sale. From an economic perspective, government and state-level services contribute most to Oneida County's overall GDP. Oneida County is the 16th biggest county (1,257 square miles) in New York. It's located in the Central New York region of New York.