The following highways are numbered 531. Route 531, or Highway 531, may refer to:
Sancti Spíritus–Yaguajay Road (4–531)
SR 531 
KY 531 
LA 531 
MS 531 
SR 531 (former)
NM 531 
NY 531 
SR 531 
PA 531 PR-531 
SC 531 (former)
FM 531 
SR 531 | Preceded by 530 | Lists of highways 531 | Succeeded by 532 |
State Route 9 (SR 9) is a 98.17-mile (157.99 km) long state highway traversing three counties, Snohomish, Skagit, and Whatcom, in the U.S. state of Washington. The highway extends north from an interchange with SR 522 in the vicinity of Woodinville north through Snohomish, Lake Stevens, Arlington, Sedro-Woolley, and Nooksack to become British Columbia Highway 11 (BC 11) at the Canada–US border in Sumas. Three other roadways are briefly concurrent with the route: SR 530 in Arlington, SR 20 in Sedro-Woolley, and SR 542 near Deming. A spur route in Sumas serves trucks traveling into British Columbia.
State Route 531 was a state highway in Carson City, Nevada. It followed a portion of College Parkway in the northern part of the city. Created by 1995, the highway was turned over to city control in 2011.
State Route 531 (SR 531) is a short state highway in Snohomish County, Washington, United States. It runs from west to east along 172nd Street between Wenberg County Park on Lake Goodwin to a junction with SR 9 in southern Arlington, with an intermediate interchange with Interstate 5 (I-5) in Smokey Point. The highway is the primary access point for the Arlington Municipal Airport and the Smokey Point retail corridor.
The State Highways of Washington in the U.S. state of Washington comprise a network of over 7,000 miles (11,270 km) of state highways, including all Interstate and U.S. Highways that pass through the state, maintained by the Washington State Department of Transportation (WSDOT). The system spans 8.5% of the state's public road mileage, but carries over half of the traffic. All other public roads in the state are either inside incorporated places or are maintained by the county. The state highway symbol is a white silhouette of George Washington's head.
