List of county roads in Washington County, Minnesota
Standard county road markers | |
| Highway names | |
|---|---|
| Interstates | Interstate X (I-X) |
| US Highways | U.S. Highway X (US X) |
| State | Trunk Highway X (MN X or TH X) |
| County State-Aid Highways: | County State-Aid Highway X (CSAH X) |
| County Roads: | County Road X (CR X) |
| System links | |
Washington County uses the standard blue pentagon to sign County State-Aid Highways (CSAH) and the white square to sign County Roads (CR).