Best SEO and internet marketing services in Genesee County NY. Genesee County zip codes - 14005, 14020, 14021, 14056, 14143, 14557 Genesee County is a county in the U. S. state of New York, located in the west of the state. The county was founded on March 1803. Its seat is Batavia, as well as the largest city. The name of the county goes from the Seneca Indian word that means “The Beautiful Valley”. The total area of the Genesee County is 495 sq mi (1,282 sq km). Land takes 493 sq mi (1,277 sq km) and water takes 2.4 sq mi (6 sq km). Only 0.5% of the territory goes to water. The population of the county is 60,079 residents and that’s according to the census in 2010. The density is 122/sq mi (47/sq km). The major watersheds can be seen in the county: Black Creek, Mud Creek, Oak Orchard Creek, Ransom Creek to Mouth, Tonawanda Creek and others. A part of Iroquois National Wildlife Refuge is a national protected area. There are such parks in the county: Genesee County Park and Forest, and DeWitt Recreation Area. Genesee County is governed by a 12-member legislature, where a chairman is a head. There are eight public schools and several private schools at the primary and secondary levels. Genesee Community College has its main campus in the town of Batavia.