Highway naming

This table identifies the specific naming conventions used for the various highway types for each state in the Unites States. Details of the naming convention is on the road naming page.

All interstate highways (freeways) are named the same across all states, so they are not included in the table below.

The state names are linked to the respective wiki page that provides specific editing guidelines (and other information) for that state. If the state link is red, there are no specific guidelines for that state yet. If you actively edit in that state consider creating that page and providing information to other editors in your state.

State	US Highway	State Highway	County Highway/Road
Alabama	US Hwy XXX	State Hwy XXX	County Hwy XXX
Alaska	US Hwy XXX	State Hwy XXX	County Hwy XXX
Arizona	US Hwy XXX	State Hwy XXX	County Hwy XXX
Arkansas	US Hwy XXX	State Hwy XXX	County Hwy XXX
California	US-XXX	SR-XXX	CR-XXX
Colorado	US Hwy XXX	State Hwy XXX	County Hwy XXX
Connecticut	US Hwy XXX	State Hwy XXX	County Hwy XXX
Delaware	US Hwy XXX	State Hwy XXX	County Hwy XXX
District of Columbia	US Hwy XXX	State Hwy XXX	County Hwy XXX
Florida	US-XXX	SR-XXX	CR-XXX
Georgia	US Hwy XXX	State Hwy XXX	County Hwy XXX
Hawaii	US Hwy XXX	State Hwy XXX	County Hwy XXX
Idaho	US Hwy XXX	State Hwy XXX	County Hwy XXX
Illinois	US Hwy XXX	State Rte XXX	County Hwy XXX
Indiana	US Hwy XXX	State Rd XXX	County Hwy XXX
Iowa	US Hwy XXX	State Hwy XXX	County Hwy XXX
Kansas	US Hwy XXX	State Hwy XXX	County Hwy XXX
Kentucky	US Hwy XXX	State Hwy XXX	County Hwy XXX
Louisiana	US-XXX	LA-XXX	CR-XXX
Maine	US Hwy XXX	State Hwy XXX	County Hwy XXX
Maryland	US Hwy XXX	State Hwy XXX	County Hwy XXX
Massachusetts	US Hwy XXX	State Hwy XXX	County Hwy XXX
Michigan	US Hwy XXX	State Hwy XXX cnsd. M-XXX	County Hwy XXX
Minnesota	US Hwy XXX	State Hwy XXX	County Hwy XXX
Mississippi	US-XXX	SR-XXX	County Hwy XXX
Missouri	US Hwy XXX cnsd. US-XXX	State Hwy XXX cnsd. SR-XXX	County Hwy XXX cnsd. CR-XXX
Montana	US Hwy XXX	State Hwy XXX	County Hwy XXX
Nebraska	US Hwy XXX	State Hwy XXX	County Hwy XXX
Nevada	US-XXX	SR-XXX	CR-XXX
New Hampshire	US Hwy XXX	State Hwy XXX	County Hwy XXX
New Jersey	US-XXX	SR-XXX	CR-XXX
New Mexico	US-XXX	SR-XXX	CR-XXX
New York	US-XXX	SR-XXX	CR-XXX
North Carolina	US Hwy XXX	NC-XXX	N/A[1]
North Dakota	US Hwy XXX	State Hwy XXX	County Hwy XXX
Ohio	US Hwy XXX	State Rte XXX	County Hwy XXX
Oklahoma	US Hwy XXX	State Hwy XXX	County Hwy XXX
Oregon	US Hwy XXX	State Hwy XXX	County Hwy XXX
Pennsylvania	US Hwy XXX	State Hwy XXX	County Hwy XXX
Rhode Island	US Hwy XXX	State Hwy XXX	County Hwy XXX
South Carolina	US Hwy XXX	State Hwy XXX	County Hwy XXX
South Dakota	US Hwy XXX	State Hwy XXX	County Hwy XXX
Tennessee	US Hwy XXX	State Hwy XXX	County Hwy XXX
Texas	US Hwy XXX	State Hwy XXX	County Hwy XXX
Utah	US-XXX	SR-XXX	CR-XXX
Vermont	US Hwy XXX	State Hwy XXX	County Hwy XXX
Virginia	US Hwy XXX	State Hwy XXX	County Hwy XXX
Washington	US-XXX	SR-XXX	CR-XXX
West Virginia	US Hwy XXX	State Rte XXX	County Hwy XXX
Wisconsin	US Hwy XXX	State Hwy XXX	CR-XXX
Wyoming	US Hwy XXX	State Hwy XXX	County Hwy XXX

Note: Some states are in the process of considering a change and may be designated with cnsd.

If you are an editor for a particular state that feels your state should consider a different format than you see above, please come to the US forums and select the sub-forum region for your state. In that sub-forum start a discussion around making a change to the naming convention for your state and tell the reasons why you think it should be done. Once consensus is reached the change can be made here.

General discussions on this page can be found in this thread.