Wyoming County administrative offices are located at 143 North Main Street, Warsaw NY 14569; phone: 585‑786‑8810.
Wyoming was formed from Genesee in May, 1841. The Genesee River forms a portion of the eastern boundary. The first settler in the area that is now the county was Ebenezer Allen, who in consequences of certain crimes fled from Pennsylvania, settling for a time along the Genesee about 1780 before moving on to Rochester. The first permanent settlers were John Tolles, Jacob Wright, Nathaniel Sprout, and Stephen Crow in 1802. Most of the early settlers were from New England, followed later by many Germans.