County routes in New York

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County routes in New York are road numbers used by 62 counties (not in the five New York City boroughs). Most routes are maintained by county highway departments. Because there is no statewide numbering, a road can have different numbers in different counties, and numbers can change at county lines. A few exceptions exist, such as CR 36 in Ontario County and CR 36A in Livingston County.

Each county uses its own system to assign numbers, so signage and density vary. Dutchess County numbers by town in alphabetical order; Monroe County uses a general west-to-east pattern; Livingston County has no fixed pattern. The number of routes also varies a lot between counties—Erie County has nearly 400 routes, while Tioga County has about 29.

Signage varies too. Most counties use the standard blue pentagonal shield with yellow lettering (the MUTCD sign). Some counties use white lettering or shapes that aren’t exact pentagons. Orange County uses a mix, including a blue pentagonal shield and a blue diamond with white lettering. A few counties, like Orleans and Westchester, do not post route signs at all. Most counties switched to the blue pentagon shield around 1974, though older signs still exist in places.

The highest-numbered county route is CR 1345 in Saratoga County—the only four-digit county route signed in New York.