A county is a local level of government under each state, responsible for services such as law enforcement, courts, public records, and more. Some states use different terms (e.g., parishes in Louisiana, boroughs in Alaska), but they serve similar functions.

Interactive Map of All U.S. Counties

Use the interactive map below to zoom in on any state and view detailed boundaries of each county. Hover or click on a county to reveal its name, major cities, ZIP codes, and more. This map is powered by modern geospatial tools to ensure accurate, up-to-date data.

Interactive Map of All U.S. Counties

Click on any county below to explore more about it.