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	State Highway/Route	County Highway/Road
Alabama	SR-###	CR-###
Alaska	State Hwy ###	County Hwy ###
Arizona	SR-###	CR-###
Arkansas	State Hwy ###	County Hwy ###
California	SR-###	CR-###
Colorado	SH-### (Forum)	CR-###
Connecticut	State Rte ###	N/A (Wikipedia)
Delaware	SR-### (Forum)	N/A (Wikipedia)
District of Columbia	State Hwy ###	County Hwy ###
Florida	SR-###	CR-###
Georgia	SR-###	CR-###
Hawaii	State Hwy ###	County Hwy ###
Idaho	State Hwy ###	County Hwy ###
Illinois	State Rte ###	County Hwy ###
Indiana	State Rd ###	CR-### When signed "County Road ###"
Iowa	State Hwy ###	County Hwy ###
Kansas	K-###	County Hwy ###
Kentucky	State Hwy ###	County Hwy ###
Louisiana	LA-###	Parish Rd ###
Maine	State Hwy ###	County Hwy ###
Maryland	State Hwy ###	County Hwy ###
Massachusetts	MA-### (Forum)	N/A
Michigan	M-###	CR-### (e.g., CR-B15)
Minnesota	State Hwy ###	County Hwy ###
Mississippi	MS-###	CR-###
Missouri	State Hwy ### cnsd. SR-###	County Hwy ### cnsd. CR-###
Montana	State Hwy ###	County Hwy ###
Nebraska	State Hwy ###	County Hwy ###
Nevada	SR-###	CR-###
New Hampshire	State Hwy ###	County Hwy ###
New Jersey	SR-###	CR-###
New Mexico	SR-###	CR-###
New York	SR-###	CR-###
North Carolina	NC-###	N/A (Wikipedia)
North Dakota	State Hwy ###	County Hwy ###
Ohio	SR-###	CR-### & County Hwy ###
Oklahoma	State Hwy ###	County Hwy ###
Oregon	State Hwy ###	County Hwy ###
Pennsylvania	SR-###	na
Rhode Island	State Rte ###	N/A
South Carolina	SC-###	N/A
South Dakota	State Hwy ###	County Hwy ###
Tennessee	State Hwy ###	County Hwy ###
Texas	SH-###	CR-###
Utah	SR-###	CR-###
Vermont	State Hwy ###	County Hwy ###
Virginia	State Hwy ###	N/A
Washington	SR-###	CR-###
West Virginia	State Rte ###	County Hwy ###
Wisconsin	State Hwy ###	CR-###
Wyoming	State Hwy ###	County Hwy ###

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.