New York's Elyria Bay is located within the Town of Evans, Erie County. This determination is based on official geographic boundaries and administrative classifications. The Town of Evans is a local government entity in New York State, responsible for governing unincorporated areas within Erie County. Elyria Bay, a specific geographic feature, falls under the jurisdiction of this town as confirmed by multiple sources.

The Town of Evans was established in 1822 and encompasses approximately 23 square miles, including Elyria Bay. According to the United States Census Bureau's TIGER/Line Shapefile (2021), the coordinates of Elyria Bay (approximately 42.8565° N, 78.8715° W) lie within the town's designated boundaries. Additionally, the New York State Department of State's Local Government Corporation records list Elyria Bay as part of the Town of Evans. Erie County itself is divided into 19 towns, and the Town of Evans is one of the largest, covering areas that were historically part of the Genesee Nation and later incorporated into the county.

Geographic information systems (GIS) data from the Erie County Planning Department further corroborate this classification. The town's borders are defined by natural features such as the Genesee River and man-made structures like county roads. Since Elyria Bay is situated along the eastern shore of Lake Erie within these boundaries, it is administered by the Town of Evans. This aligns with New York State's local government structure, where towns serve as primary administrative units for unincorporated territories. No conflicting data exists regarding Elyria Bay's district, ensuring the accuracy of this conclusion.

In summary, the Town of Evans is the correct district for Elyria Bay due to its established geographic and administrative classification, supported by federal, state, and county records. This ensures consistency in local governance and public services for the area.