Washington State Route 271

State Route 271
Map of Whitman County in eastern Washington with SR 271 highlighted in red
Route information
Auxiliary route of SR 27
Defined by RCW 47.17.490
Maintained by WSDOT
Length:	8.48 mi (13.65 km)
Existed:	1964 – present
Tourist routes:	Part of the Palouse Scenic Byway
Major junctions
South end:	SR 27 near Oakesdale
North end:	US 195 at Rosalia
Location
Counties:	Whitman
Highway system
State highways in Washington Interstate US State Scenic Former PSH 1964 renumbering Former ← SR 270 SR 272 →

State Route 271 is a 8.48-mile (13.65 km) long state highway located entirely in Whitman County, Washington, Washington, United States. The highway begins at a y-intersection with SR 27 in the northern outskirts of Oakesdale north to an interchange with U.S. Route 195 (US 195) southeast of Rosalia. The highway listed as part of the Palouse Scenic Byway.

SR 271 begins at a y-interchange with SR 27 in north Oakesdale, traveling northwest past the Oakesdale Cemetery. The highway traverses rolling wheat fields through rural Whitman County, crossing over McCoy and Pine Creeks. The highway parallels a single track, to the west of the highway, belonging to the Washington and Idaho Railway, crossing over the line roughly half way to Rosalia. The rail line continues to parallel the highway after crossing it, just on the opposite side of the highway. SR 271 terminates at an interchange with US 195 southeast of Rosalia, however the roadway continues into the town as a county-maintained road. The entirety of the route has been named as part of the Palouse Scenic Byway.

Every year the Washington State Department of Transportation (WSDOT) conducts a series of surveys on its highways in the state to measure traffic volume. This is expressed in terms of average annual daily traffic (AADT), which is a measure of traffic volume for any average day of the year. In 2009, WSDOT calculated that between 650 and 740 cars travel along the highway on an average day.