Boise County on the map of Idaho 2025. Cities, roads, borders and directions in Boise County of Idaho.

USA / Idaho / Boise County

Boise County is found in the western lands of Idaho. This lively county is named after Boise River. The population of Boise County exceeds 8 thousand people. The county, formed in 1864, spans an area of 1902 square miles. The county seat of Boise County is Idaho City. This map shows the borders of Boise County as well as neighboring counties, including major highways and natural objecsts as of 2025. Zoom in or out of the map using the plus/minus panel. Move the center of this map by dragging it. Also check out the satellite map of Boise County.

The borders of Boise County over the map of Idaho

An image of Boise County, ID

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