Boundaries: U.S. Census Bureau · Population: Vintage 2024 estimates

Idaho county map

Idaho has 44 counties. Color the ones you've lived in, visited, or passed through, then share your map or download it.

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Pick a category, then click counties. Click again with the same color to clear. Drag to pan, scroll or pinch to zoom.

Every category is yours to change: click its swatch to pick any color, click its name to rename it, and use + Add for up to eight.

Most populous: Ada County, 535,799. Least populous: Clark County, 794.

Largest by land area: Idaho County, 8,477 square miles.

Idaho borders Montana, Nevada, Oregon, Utah, Washington, and Wyoming.

Populations are Census Bureau estimates for July 1, 2024.

All 44 counties