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

Massachusetts county map

Massachusetts has 14 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: Middlesex County, 1,668,956. Least populous: Nantucket County, 14,670.

Largest by land area: Worcester County, 1,511 square miles.

Massachusetts borders Connecticut, New Hampshire, New York, Rhode Island, and Vermont.

Populations are Census Bureau estimates for July 1, 2024.

All 14 counties