Jefferson County spans inner-ring cities, established suburbs, major employment and retail corridors, foothill communities, and mountain-access areas. Its east-to-west differences are substantial.
Select a county to open its guideThis map stays focused on the seven-county Denver metro. Pan or zoom as needed. Boundaries come from U.S. Census Bureau TIGERweb; verify a specific property with county GIS records.
Some municipalities cross county lines; inclusion does not mean the entire city lies in this county. Mailing names also do not establish county jurisdiction—verify the parcel.