Map - Ferry County, Washington (Ferry County)

Ferry County is a county located on the northern border of the U.S. state of Washington. As of the 2020 census, the population was 7,178, making it the fourth-least populous county in Washington. The county seat and largest city is Republic. The county was created out of Stevens County in February 1899 and is named for Elisha P. Ferry, the state's first governor.

During the time of Washington Territory, the Territorial Legislature created Stevens County in 1863, containing all the land from the Columbia River to the Cascades north of the Wenatchee River from Walla Walla County. On January 20, 1864, the original Spokane County was dissolved and merged with the unorganized Stevens County. The western section of Stevens County was separated on February 18, 1899, and named Ferry County, in recognition of the Territory's last governor and the State's first governor, Elisha P. Ferry.

The town of Republic is the county's seat of government, as well as the largest town. It was founded at the end of the nineteenth century by gold prospectors and was incorporated in 1900. The original election precinct of Republic was created on April 6, 1898. Following the 1922 primary elections, a group of citizens called for an investigation into possible election irregularities. The group claimed that two of that years voting precincts had been formed unlawfully in conjunction with misconduct in six precincts by election officers and the canvassing board. As a result of the actions, the validity of two candidates were called in question. Demands were made that Thomas F. Barker, seeking re-election as sheriff, and John W. McCool, seeking the County Treasurer seat, be barred from the ballot. Barker was notably facing charges at the federal level at that time from allegations of conspiring and abetting bootleggers.

The original county courthouse, made of wood, burned in 1934. Its replacement, made of concrete and stucco, is presently being considered for historical preservation.