Jefferson County on the map of Colorado 2024. Cities, roads, borders and directions in Jefferson County of Colorado.

Jefferson County is found in Denver suburban area of Colorado. This famous county is named after Thomas Jefferson (1743-1826), the author of the Declaration of Independence and the third President of the United States. The population of Jefferson County exceeds 580 thousand people. The county, organized in 1861, covers an area of 773 square miles. The county seat of Jefferson County is Golden. This map shows the borders of Jefferson County as well as neighboring counties, including major highways and natural objecsts as of 2024. 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 Jefferson County.