 State Route 221 | ||||
|---|---|---|---|---|
 | ||||
| Route information | ||||
| Auxiliary route of SR 22 | ||||
| Maintained by WSDOT | ||||
| Length | 25.95 mi[1] (41.76 km) | |||
| Existed | 1964–present | |||
| Major junctions | ||||
| North end |  SR 22 at Prosser | |||
| South end |  SR 14 at Paterson | |||
| Location | ||||
| Country | United States | |||
| State | Washington | |||
| Counties | Benton | |||
| Highway system | ||||
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State Route 221 (SR 221) is a 25.95-mile (41.76 km) long state highway located entirely within Benton County, Washington, United States. The highway serves to connect the unincorporated community of Paterson to the county seat Prosser. The highway has existed since at least 1926 and was designated as Primary State Highway 8E from 1937 until the 1964 renumbering of Washington state highways.