Best SEO and internet marketing services in Oneida County NY. Oneida County zip codes - 13054, 13123, 13157, 13162, 13301, 13303, 13304, 13308, 13313, 13316, 13318, 13319, 13321, 13323, 13328, 13338, 13341, 13352, 13354, 13362, 13363, 13401, 13403, 13417, 13424, 13435, 13438, 13440, 13441, 13442, 13449, 13455, 13461, 13469, 13471, 13476, 13477, 13478, 13479, 13486, 13490, 13492, 13494, 13495, 13503, 13504, 13505, 13599 Oneida County is a county is the U.S. state of New York. Utica is the county’s seat. It is called Oneida, because of an Iroquoian tribe, who lived in the county. More than 230,000 people live there and that’s according to the census in 2010. In 1798 Oneida County was separated from a part of Herkimer County. The area of the county is 1.212 square miles (that is 3,140 km2) and the water takes 45 square miles (120 km2). Water takes only 3,6% of the whole territory. Part of the Tug Hill Plateau is situated in the northern part of the county. The highest point is the Tassel Hill. Oneida County has the Erie Canal. There are Oneida Lake and Oneida Creek on the western border of the county. By 2005, the county was famous for silverware production, but it was closed then. At the moment county is notorious for gambling. There is popular casino situated in Oneida County. There are several colleges in the county. They are Hamilton College, Utica College, Mohawk Valley Community College and State University of New York Polytechnic Institute. Only three cities are situated in the county: Rome, Sherrill and Utica. 90% of residents speak English, 2,7% speak Spanish, 1,3% Italian, 1,2% Serbo-Croatian and 1,1% Polish languages.