All active state-numbered highways in this list are maintained by the Nevada Department of Transportation.

Urban state routes, numbered in the 500s and 600s, typically lie on arterial roadways in larger metropolitan areas.

Urban state routes are grouped together sequentially, assigned by alphabetical order of the name of the city in which they primarily reside.

Nevada DOT has been attempting to remove some urban routes from the state highway system since the 1990s, preferring to transfer control of these roadways to local municipalities.

In some small urban areas, these routes can also serve as minor collector or arterial roadways.