- Location: Lincoln, Polk County
- Incorporated Areas: Siletz, Logsden
- Basin Size: 197,120 Acres
- Major Tributaries: Cedar Creek, Euchre Creek, Gravel Creek, North Fork, Rock Creek, South Fork, Sunshine Creek
- Water Quality: 2010 303(d) listings for Siletz River (PDF), LSWCD Water Quality Data 2011 to 2015 (Excel)
